April Thank-You Notes

April 30th, 2009

To start with an aside, let me say that I have made the move from “thank yous” to “thank-you notes,” thus avoiding a “word” I didn’t like to see in print, but had nonetheless used a few times here. Sometimes the obvious solution to a problem takes a while to become visible. I will not be giving any “shout-outs.”

As usual, this blog got a ten-fold increase in daily visitors while MacSurfer’s Headline News™ had a link to a post (What a Relief! MacBook Pro Overheating Problem Cured—Really) here. Thank you, Darren.

Other Mac sites that continue to send visitors here are PowerBook Central, and LowEnd Mac. Thanks, folks. I’m so glad that I actually have a solution to the MacBook overheating problem to point to now.

My post Some Observations on College Guides and Their Usefulness was included in the Carnival of College Admission: Kick A@$ College Links. Thank you, Elizabeth.

Joe, aka Coonass in italy, referenced and commented on Dante’s Heavenly Vision and the Physics of the Proton in his March 13 post “religion and science.” Thank you again, Joe.

David of D Dubs Reads found a lot to think about in the Dante post and added On-Screen Scientist to his blogroll. Much appreciated, David.

Denyse posted a long excerpt from the Dante piece on her Colliding Universes blog and linked to it. Thanks again, Denyse.

Harry of The Kudzu Files has placed this blog on his Blogopedia list. Thank you, Harry.

I’m programming an iPhone app (baseball related), which is taking a lot of my time, so posting will no doubt continue to be less frequent for a while. I’ll probably record another of the oldies for an audio post before long. Requests welcomed at the email address toward the upper right of this page.

Oh yes, I’m now on twitter as onscrn.

Only Three More Shopping Days Until DNA Day! Save Big!

April 22nd, 2009

Let’s face it: knowing the structure and workings of DNA is part of basic scientific literacy these days, which is why, after all, millions of us celebrate DNA Day. If you’re still doing last-minute DNA Day shopping, do we have a great deal for you! OnScreen DNA, the world’s best three-dimensional computer model of the double helix structure of DNA, complete with on-screen, tutorial-based simulations of how DNA works, is on sale at 50% off.

And what better way could there be to celebrate fifty-six years since the 1953 publication of the Watson and Crick paper elucidating DNA’s double-helix structure than buying OnScreen DNA for only $19.53? It’s perfect for those students, teachers, and science lovers of all ages on your shopping list. And don’t forget to treat yourself.

Don’t worry if you don’t see this until DNA Day itself—the online offer and the ability to get the software immediately by download will still be available right through April 25. Yes, we are celebrating with the “traditional” April 25 instead of moving to April 24, as many national national organizations, evidently wanting to avoid a weekend day, have done this year.

Seriously, there is nothing that I know of that teaches DNA structure and functioning in such a complete and thoroughly three-dimensional way as OnScreen DNA, which I designed and programmed myself. The software runs on Macintosh OS X or Windows XP/Vista. The on-screen tutorials explain everything you’re seeing, and practically no prior knowledge is assumed.

The animations of DNA and RNA chain-construction in OnScreen DNA are a lot of fun. I still enjoy them after having gone through them countless times during programming, debugging, testing, and just playing. You really need to see the three-dimensional structure of DNA, not just the two-dimensional ladders which animations encountered on the internet seem to invariably fall back on. Having programmed the OnScreen DNA animations, I can see why they do that—it’s a pain to do the three-dimensional programming. But it is worth it. Take a look at the results and judge for yourself. Just go to <onscreen-dna.com/buy_dna_online.php> to take advantage of this special offer.

What a Relief! MacBook Pro Overheating Problem Cured—Really.

April 17th, 2009

Just in case anyone has arrived here desperate for a solution to MacBook overheating, let me put it in this first sentence: CoolBook is what you need. I last wrote about the ever-worsening tendency of my first-generation MacBook Pro to go into a runaway heating mode back on November 22 of last year in an optimistically titled post called New Firefox Cures Overheating? I knew better than to be confident that something as simple as a browser upgrade could have taken care of my overheating problems, but I wanted so much to believe it. The Firefox upgrade probably did alleviate overheating associated with Firefox, but before long it became obvious that it was only a small part of the problem.

Since my lonely corner of the blogosphere receives several visits daily from unfortunates with the same overheating problems (I can tell from the logs of their visits: Google search terms), I’ve felt bad that all I was really offering them was the knowledge that they were not alone, even if Apple has never said anything about the problem. My computer got a slight amount of symptomatic relief by using the Fan Control utility, which goes into the System Preferences panel. With Fan Control, I was able to control the fan speed versus temperature profile to some degree, but the maximum fan speed, no matter what temperature it kicks in at, is no match for a true runaway heating episode.

The overheating problem only got worse for me with the 10.5.6 OS upgrade. Some apps became completely unusable. For example, Winclone, a great program for backing up your Boot Camp Windows partition to a compressed file on your Mac partition, thus allowing you to have a Windows backup on your Time Machine drive, would reach 100° C before 5% of the Windows partition had been read! The temperature never reached a plateau, and the high temperature caused a shutdown the one time I decided to let it keep going and hope for the best. I tried reverting back to an earlier version of Winclone, which had never caused a problem before, but that didn’t help.

The funny thing was that the runaway heating often seemed to be associated with periods where one might expect the computer to be cooly twiddling its thumbs. For example, EPSON Scan, the software that runs my excellent Epson Perfection 2450 Photo Scanner, would operate at a reasonable temperature when actually scanning, but once I clicked to tell it that, yes, I wanted it to scan another page, it seemed to go into a rage for some reason, and I heard, not the purr of a resting Mac, but the ever loudening buzz of the cooling fans, which were vainly trying to get it to cool down. Click to begin the next scan, and the temperature would drop. Similar odd behavior was observed with the Microsoft Office upgrade installer. Once the installation, which occurred coolly enough, had finished, the fans would start to buzz; and quitting the installer was the only way to bring the temperature back down.

There were also certain websites that would cause both Safari and Firefox to get a fever that ramped up rapidly and could only be stopped by jumping to another site. This could happen on certain sites without any video or anything I’d seen associated with the problem before. A web site featuring high school athletic event schedules was one such innocuous looking site with pyromaniacal pages.

At some point a few weeks ago Safari became completely useless, as it would invariably start up the runaway heating ramp within seconds after launch. How can it happen that a program permanently changes its behavior? I don’t know, but reinstalling with a freshly downloaded copy of Safari 3.2 did not help. Ordinarily I wouldn’t have tried the Safari 4 beta, but I had nothing to lose at that point, so I installed it, and it ran normally. I believe running Safari 4 instead of its formerly stable predecessor actually caused an overall lowering of the average temperature at which my MacBook Pro ran, but it by no means cured the overheating problem. I was pretty well resigned to having it indefinitely until the day before yesterday, when I got my hopes up again.

I can’t remember how I came across CoolBook, but I downloaded and installed it yesterday, and it has really solved my problem. Hopefully it has no undiscovered side effects. How does CoolBook work? In a word: undervolting. CoolBookController (to use the program’s full name) allows you to scale down the operating voltages assigned to different frequencies, thus allowing the computer to run at a cooler temperature without reducing the computing power, which depends on the frequency. Apple has set a default table of these voltage and frequency pairs that is quite conservative. Chips vary, and Apple must have chosen the voltages so that almost no cpus will be unstable for any frequency. This makes life easier for Apple, from the warranty standpoint no doubt, but in the case of the laptops it sells, it makes for a lot of unnecessarily high operating temperatures. So why doesn’t Apple do a chip-by-chip calibration to minimize the number of hot MacBooks? Well, it probably took me at least two hours to get CoolBook all set up for my MacBook Pro. First, it takes a while to figure out what to do, though everything you really need can be found in the instructions.

Then it’s just a matter of trial and error to determine what is the lowest voltage you can use with a given frequency on your machine. A utility called CPUTest is provided to verify cpu stability for the voltage/frequency combination you choose. This utility evidently does uninterrupted heavy-duty computations until it catches an error or until you decide it’s run long enough to call it a successful combination. The documentation recommends running the test for at least ten minutes; so you can see how an hour can easily be used up. In my experience, failures usually occurred in the first minute or so though.

I followed the recommendation to determine the maximum frequency at which my machine could run without trouble at the lowest voltage setting of 0.95V. Following the result reported in the documentation I tried 1.837 GHz for this voltage and got an immediate black-screen shutdown. i should have known mine couldn’t match that. I cut the trial frequency way down and worked my way up. I found 1.503 GHz was the highest stable frequency. Apple’s default frequency for the lowest voltage is 1.0 GHz.

Here are the frequency/voltage pairs that my formerly hot MacBook Pro ended up with (original Apple voltage settings in parentheses):  1.503 GHz, 0.95 V (1.1125 V); 1.67 GHz, 0.9625 V (1.1625 V); 1.837 GHz, 1.0125 V (1.2125 V); 2.004 GHz, 1.0875 V (1.2625 V).

How much difference do the lower voltage settings make? A very big difference in operating temperature for my machine. It has cool (58° C) and silent operation during times of cpu-loafing such as the computer is experiencing while I type this piece. During the stress of the CPUTest, I saw the temperature reach 98° C for the 2.004 GHz frequency, but it stopped there, and I know from experience it would only have been stopped by a computer shutdown at 115° C using the Apple default voltage.

The fix of the overheating problem still doesn’t explain why the computer thinks it needs to go to to maximum frequency for no apparent reason. CoolBook’s cpu-frequency monitor allows you to see what the current frequency is. Sure enough, it goes to the maximum 2.004 GHz on that baseball schedule page. I think I may just now have seen the culprit though. That page has one of those continually scrolling stock-ticker-like message things, which perhaps eats up computer cycles somehow. If that’s it, it doesn’t even have to be visible to cause the effect.

I also see that gathering permissions info in Disk Utility throws it into the highest frequency mode, as I would have expected from previous temperature rise observations. Why is that, I wonder? Quitting Disk Utility in midstream had no immediate effect on the computing frequency though. It’s stuck there at the highest frequency, though no running program is doing anything I’m aware of. I think this must really be an OS X issue. Fortunately, instead of being in the upper nineties, the temperature is around 70° C. That’s still high enough to cause an annoying fan noise though. Already complaining!

Anyway, the $10 I spent on CoolBook was nothing for the amount of relief it has brought. I’d have spent ten times that much to be guaranteed a solution to the overheating problem, which was ongoing and had become quite limiting, witness my not being able to run Winclone. This time, there really has been a solution. I successfully made a backup with Winclone yesterday at around 70° C. Unless Apple breaks CoolBook with its next update (and the danger of that will give me pause), I’m set for being a normal Mac user for the foreseeable future. CoolBook is evidently the creation of Magnus Lundholm and is found on a web site with an se domain. Hats off to the guy in Sweden!

Some Observations on College Guides and Their Usefulness

March 31st, 2009

In the past year or so I have been doing quite a bit of reading and research on undergraduate programs, student life, admissions procedures, and financial aid policies at different colleges (mainly in the Northeast), as my son, now a high school senior, has prepared to apply and then actually applied to a number of them. In truth, my son has only spent a small fraction of the time that I have in such preparatory research, since he has a pretty good idea where he wants to go and where he can get in. Happily, the school he most wants to attend is also one he can almost certainly get into. Even more fortunately, it is our State university, so it is also the most affordable of those he’s considered, and, depending on what offers of financial aid he should receive, possibly the only affordable one.

Some of my son’s classmates applied to our State university for early action, got accepted by early December, and didn’t have to worry about applying elsewhere. That procedure has a lot to be said for it. Nonetheless, based on his school counselor’s recommendation and our feeling that it’s a good idea to have more options, our son has applied to a number of colleges in our area. I should add that these are schools both he and his parents agree might conceivably become the top choice once an acceptance letter (and sufficient financial aid package) made it a definite option. He was not shy about rejecting outright several of our suggestions, and not always for any obvious reason. My wife has sometimes gotten the feeling that her suggesting a school gives it the kiss of death. It’s definitely true that his knowing that a favorite high school teacher attended a certain school raises that college’s acceptability quotient considerably, which is actually not bad reasoning.

In our effort to learn more about colleges we already knew were of interest and to discover new ones that might be worth considering, we utilized a few of the numerous college guides that are available. I thought sharing my observations on some of the leading college guides and how they compare might be useful for others about to embark on the same journey of college choice. Note that I said “observations”–I’m not making thorough reviews.

The first college guide we bought was the Barron’s Profiles of American Colleges: Northeast (also available for other sections of the country). Its listing is quite complete and contains basic facts about all the schools, grouped by State, including the editors’ evaluation of how “selective” each one is. The Barron’s guide also has a section where schools are grouped by selectivity, which can be useful both in identifying schools to investigate further and in sorting them into “reach”, “match”, and “safety” categories. Among the facts this guide includes, and which any guide will have, are the application deadlines, SAT/ACT test submission requirements, percentage of applicants admitted, and percentage of those admitted actually enrolling. Of course, all of the guides have some kind of summary of what the schools most popular majors are and what the students are like, including the percentage of those enrolling who were in their high school class’s top 10%, etc. for each school. Breakdowns along ethnic and public vs private school lines are usually provided. Barron’s had all of these standard data and more information about the programs offered, student housing, campus security, etc.

College guides generally include some report of the SAT (and/or ACT) scores of enrolling students. Typically this is given as the range in which the middle 50% of the students lie. The Barron’s guide had SAT scores broken down further, by 100-point range, so if you’d like to know what percentage of students at a given school scored, say, over 700 on the Math SAT, you can find it there. This finer-grained reporting can be useful in seeing how your student stacks up, which should help in evaluating not only the potential for admission but for “merit-based” financial aid.

One thing to note in gauging the competition for spots in a school is that the test scores of applicants will almost surely differ from those of enrolling students due to two factors. First, the students who were not accepted will presumably on average have lower scores than those accepted. Perhaps less obviously, the scores of those admitted are, for all but the most competitive schools, going to be on average higher than the average for those actually enrolling. Some high scorers will have applied to the school as a “safety school,” and will enroll elsewhere unless their more favored options all reject them. Still, being able to compare one’s SAT scores to those of a given school’s students seems useful.

All of the information in the Barron’s guide was actually quite helpful for someone just starting the college search and selection process. One important fact it revealed to us was just how expensive all of the private schools are, from top to bottom. We experienced substantial “sticker shock” in our college search: the total cost of attending a State university outside of one’s own State turns out to be about 70% of what one would pay for a private school (roughly $35,000 as opposed to $50,000!).

The next book we bought was The Best 366 Colleges (latest edition has 368) by the Princeton Review. There were probably at least 250 schools in this book that I wouldn’t have been able to place on such a list with any confidence. A surprisingly large number of these were small schools I had never even heard of. I’m afraid there was also some blind prejudice involved in my failure to know what schools would be found in the group of the “best.” I would never have guessed that the University of Tulsa was a really good school, for example, my hazy impression of Tulsa having been formed by some ancient movie poster featuring oil wells. I noted with some gratification that a number of the small private schools included were ones I had first encountered when a physics professor had purchased my modern physics teaching software OnScreen Particle Physics.

The Princeton Review guide is one of several books that attempt to give a more in-depth picture of what a student’s life is like at different colleges. It uses student questionnaires to gather data on many aspects of college life, both academic and social. Obviously these evaluations are subjective, but that’s not a bad thing to the extent that measuring student satisfaction and perception is the goal. The reliance on student surveys could leave the process vulnerable to  a concerted effort to slant certain evaluations in a particular direction, however. The Princeton surveys are done on a three-year cycle with about a third of the whole batch resurveyed each year. An amusing feature of the Princeton guide is its compilation of the top twenty schools in many categories—relating to academics, bureaucracy, social life, and campus environment—based on the student questionnaire responses. Looking for a party school? The Princeton Review may be able to help.

The third guide that we utilized was the Fiske Guide to Colleges 2009. While the Barron’s guide was all-inclusive, the Princeton Review and Fiske guides restricted themselves to the “best” three hundred something schools. Finally, I couldn’t resist buying the US News (USN) America’s Best Colleges, which is actually very complete at least in its listings of four-year colleges. The USN guide is the one that gives an overall rank to schools in various institutional categories: National Universities, Liberal Arts Colleges, etc. Its most subjective feature is the peer rating of faculties. Student opinion is not consulted, but the USN rankings take into account some hard numbers, such as percentage of freshman returning for second year and, of course, SAT scores of enrolled students. Naturally, USN doesn’t reveal the secret formula they use in turning these factors into a single number that determines a school’s national ranking. USN also has useful summary information on all the four-year colleges in the country.

We’ve been using last year’s Princeton Review guide, but it seems the text of the college descriptions has not changed for any of the schools I scanned for differences. There are now 368 in all in the new edition, which I’ve only seen online. What has been revised is the top-twenty lists, which could change if only some schools re-evaluated things. How consistent are they from year to year? Not as consistent as Princeton’s claims of remarkably stable ratings would lead one to believe.

Northeastern University, located in Boston, is an interesting case to consider both for highlighting the very subjective nature of the ratings and the lack of consensus among guides and for hints that some ratings (supposedly based on student surveys) may be manipulable. Fiske, or whoever wrote the Northeastern review for the Fiske guide, clearly does not think very highly of Northeastern. In fact, he rates its academics so low (a 2 out of 5), one wonders how it made it into the book. I only saw ten other included schools (out of the more than 300) with a rating that low.  But over in the Princeton Review (based on student surveys), Northeastern has a respectable 79 (out of 100) academic rating, which, for example, according to Princeton, is somewhat better than the University of Illinois, pegged at 74 by Princeton, but given a highest rating 5 by Fiske. Who’s right? The question really doesn’t have much meaning, since there is no actual number for a college’s academic rating, but such differences point out that relying on a single source may not be a reliable way to gauge even a school’s reputation.

When we look at the US News ratings, we find Northeastern ranked number 96 among “national universities” in the USA and with a peer-based faculty rating of 2.9 (out of 5—Harvard is 4.9), while Illinois comes in nationally at number 40 and with a faculty rating of 4.0). So in addition to wondering what Fiske has against Northeastern, we have to consider that Princeton may be underestimating Illinois. But USN doesn’t incorporate student opinion of their professors into the rating. Fiske says he does. Princeton definitely does. I just noticed that Caltech was tied with Northeastern in the Academic rating last year in the Princeton guide due to Caltech students’ putting their professors at number 3 on the “Professors Get Low Marks” list. Caltech’s Academic rating jumped up 10 points to 88 this year, despite its holding on to the third place in that bad professors’ category. Perhaps Princeton changed the weighting to de-emphasize student opinion; perhaps after some complaints by Caltech.

Princeton acknowledges that they allow schools to contest rankings they perceive to be unfair. There is no way to know how those things are settled; nor, of course, is there any reporting of when a change has resulted from a college administration complaint. Princeton notes that some schools refuse to participate in the student surveys. Though there don’t seem to many colleges at all that are currently opting out, Princeton wouldn’t want that number to start rising, especially among elite schools. Fiske gives CalTech a 5 academic rating, and USN has them with a 4.6 peer rating of faculty (and number 6 overall in the National University category). Of course there is a a difference between being a highly regarded scientist in one’s field and being a good teacher. Are Caltech professors really that bad as teachers? Is there a language problem? Could Caltech students be blaming their professors for the students’ own shortcomings in handling a very difficult curriculum? I don’t know, but the academic ratings definitely seems to be a case where the Princeton Review differs from Fiske and USN, due to its giving more weight to professors’ teaching ability and their availability.

One of the ill-defined but definitely interesting factors that both the Fiske and Princeton Review guides attempt to rate is the “quality of life” (QL) at the various colleges, and there are clear differences of opinion. Not only does Fiske rank Northeastern low in academics, he gives it a 2 for QL. Princeton, however, gives Northeastern a well above average QL rating of 83. I think this must be partly due to a bias against urban schools by Fiske. Boston College and Boston University get a 93 and 81, respectively, from Princeton; but Fiske gives them just OK 3 ratings. Fiske loves the University of Vermont and he certainly makes it sound appealing: “The size is manageable, Burlington is a fabulous college town, and Lake Champlain and the Green Mountains are on your doorstep.” He gives it a 5 for QL, while Princeton says Vermont is right there with Northeastern with an 83. UNH, a small-town school, gets a 4 for QL from Fiske, but only 68 from Princeton. NYU gets a Princeton 87 versus a Fiske 3, so it seems the Princeton-urban and Fiske-nonurban preference holds. Of course, the Princeton results are supposedly based mainly on student surveys and the Fiske ones less so, which seems to me to be saying that students like urban campuses better than Fiske does. It seems clear that it is the locale that causes Northeastern students to rate their experience so highly. Their responses put Northeastern at number 11 for “Great College Towns,” up from 15 a year ago.

A really big jump occurred for Northeastern University in the category of Best Career/Job Placement Services, where they came from out of nowhere to be number 1 in the latest edition. Has there really been that big a turnaround in those services in the past three years? Possibly, but mightn’t there have been a little encouragement by the school administration for students to highlight an area that Northeastern should shine in, given its co-op plan? I know nothing about it, but I can’t help wondering. Or perhaps some students took the initiative to help boost their school’s standing by organizing a campaign to get people to praise the Job Placement Office in their survey. There’s no way to know, but also no way to prevent it. I note that Northeastern has been touting their first-place Princeton Review finish in their recruiting letters this year.

There is also a self-consistency problem in the Princeton Review ratings. For example, The College of the Holy Cross gets a high (93) rating for Financial Aid, yet ranks number 16 (up from number 17) in student dissatisfaction with their aid. This isn’t strictly speaking a logical contradiction except that the 93 rating is supposed to be based on student reports as well as school reports. Is there something misleading in the school report, or is there something different about Holy Cross students? Can it be that only a relatively small minority are so dissatisfied with their aid as to make a big point of it but that this group still outnumbers those at most other schools wanting to raise it as a major issue? We’d need to know more of the details on how the ratings and rankings are arrived at to answer that question. It’s just another indication that it would be a mistake to make too much out of any one rating.

My wife and I have been rather dismayed that all of the schools our son has applied to have the notation “Lots of beer drinking” in the margin of the Princeton review. All but one also add “Hard liquor is popular.” It’s almost as if we were deliberately looking for hard-drinking schools, which is far from the case. I think we may have been a bit negligent on this issue, as I now see schools without the alcoholic notations exist, though not all that many in the Northeast.

An interesting case of an overall negative trend in the Princeton top-twenty rankings from one year to the next is the University of New Hampshire (UNH). In the 2008-9 edition they were number 7 in the “Party School” category, so it’s good (from a parent’s standpoint) that they’ve dropped a bit to number 11. They have, however, moved up from 4 to 3 in the “Lots of Beer” list, and they now appear as number 20 for “Reefer Madness,” while being “unranked” the previous year. Is there some sort of rivalry building with the University of Vermont on this cannabis-loving category? UVM had already staked out a place near the top (number 4) in the category. UNH is now number 5 for “Homogeneous Student Population” (up from 9) and has maintained its position at number 4 in “Little Race/Class Interaction.” To make matters worse they check in at number 6 in “Town-Gown Relations are Strained,” which wasn’t mentioned the previous year.

Those changes could be just due to changed perceptions or some particular incident (for the strained relations) probably. New this year at UNH is high dissatisfaction with professors: number 18 for “Professors Get Low Marks” and number 14 for “Least Accessible Professors.” Maybe this is just a statistical fluctuation from only somewhat lower, but invisible to the list, ratings last year. Or could a few students at UNH be trying to put heat on the school by organizing a campaign to give the faculty bad grades in the Princeton survey? How many would it take really? We aren’t given figures on how many students participate in the surveys for each school. Given that the Princeton surveys are done on a three-year cycle with about a third of the whole batch resurveyed each year, fluctuations could be due to new answers from the school’s students or from changes by students at other schools. Given some fairly big changes with UNH, I’d say they must have been resurveyed. Otherwise, how could the jump from off the list to number 6 in strained community relations have occurred?

The University of Massachusetts at Amherst has seen one major improvement (from the parent’s standpoint). It went from number 4 in “Students Never Study” to not being in the top 20. The list still exists (Florida took the top spot), so there must have been a decided change at UMass in the last three years, assuming the disappearance from the top twenty is due to resurveying. For all I know the campus newspaper published an editorial urging students not to make UMass look bad by saying they hardly ever studied. How would I know? How would the Princeton Review know? On another positive note, UMass has dropped out of the top twenty for “Long Lines and Red Tape,” where they held down the 17th position a year ago. The students at UMass are nonetheless (perhaps because of increased study time) even more unhappy than before—up to number 18 (from 20) in the “Least Happy Students” category. The campus isn’t looking any better, at least in the students’ eyes: UMass has moved up from 12 to 8 on the “Least Beautiful Campus” list. The students (now that they’ve had to start studying?) are showing their dissatisfaction with professor accessibility, coming in at number 17 for “Least Accessible Professors.”

That should be enough to show everyone that college guide evaluations are not gospel, don’t always share consensus, and are possibly subject to gaming by schools or organized groups of students. While I wasted way too much time on reading them, I know I learned a good deal too. I started writing this several weeks ago before much had happened in the way of college admission decisions and financial aid offers, and I’ve left everything about those matters in the future tense. I may have more to say later about the whole process of applying for admission and financial aid and deciding what to do.

Dante’s Heavenly Vision and the Physics of the Proton

March 13th, 2009

This piece may appear to many readers (that is, I imagine it might if there were many readers) to be an exercise better suited for a medieval theologian, an effort which most people today would deem a waste of mental energy spent elaborating a dubious odd abstraction having no relationship to the real world. Nonetheless, I am going to report my observation of interesting parallels between the Christian doctrine of the Holy Trinity, as envisioned by the great medieval poet Dante Alighieri in his Paradiso, and the picture modern physics presents of the fundamental nuclear particle called the proton. Structuralists may take some pleasure in seeing an unexpected example of the human mind’s convergence on certain images for representing conjectured interactions between entities which are not directly observable by means of our senses. Of course, the theoretical picture of the proton is based on objective experimental data and is in no sense arbitrary, though it may be incomplete; while theological consensus is that the Trinity can be known by revelation only.

First let us briefly review some important facts about protons. Protons are the electrically charged particles that, along with the electrically neutral particles of slightly higher mass, the neutrons, make up the nuclei of atoms, in which almost all of the atomic mass is concentrated. The number of protons in an atom’s nucleus determines how many electrons the atom has—the same number—and from this everything about the atom follows.

Given the laws of physics that govern the electrons in the atom, the mere number of protons in the nucleus determines the chemical properties of the atom of which it is a part. For example, the nucleus of the hydrogen atom consists of a single proton. Hydrogen thus has one electron; and, by virtue of that fact, two hydrogen atoms love to join with oxygen to make that extraordinary chemical compound that Life requires—water. Helium, on the other hand, has two protons in its nucleus and thus two electrons; it won’t combine with anything else. These are the two simplest elements, but their examples suffice to illustrate how definitive the number of protons in the nucleus is for establishing atomic properties.

Electrons can and do exist separately from nuclei and are freely exchanged among them. Protons do not spontaneously join together to form nuclei here on Earth. All atomic nuclei, except for that of hydrogen, which formed shortly after the Big Bang, and that of helium, much of which formed during a short time where conditions in the early universe resembled those in a star’s interior, have to be made in the furnace of the stars. Most of the matter of the universe (the normal matter, anyway, not the “dark” matter) is still in the form of the first-made element, hydrogen. The number of protons in the universe is estimated to be around 1079!

Born from the Big Bang, protons seem destined to last as long as the universe. All the other heavy particles (baryons), such as the neutron, are unstable and subject to decay into lighter particles. A free neutron (not bound in an atomic nucleus) will on the average last only around fifteen minutes before decaying into a proton, an electron, and an ultralight particle called the antineutrino.

Although theories have been put forth in which the proton would also decay, no one has ever observed proton decay, and not for want of carrying out experiments deep below the Earth’s surface that specifically look for such events. According to experiment, the lower limit on the average lifetime of the proton is around 1034 years! Considering that this is about 1024 times greater than the age of the universe, I’m comfortable calling protons as “eternal” as matter can be.

In summary, protons, which may be totally stable, make up most of the normal matter of the universe and by their mere number in the atomic nucleus determine the chemical properties of atomic elements. All of the complex chemical reactions that take place in the universe, though they involve most directly the electrons of the atoms, ultimately trace down to the number of protons in the nuclei of the atoms involved.

Now let us move from science to theology. One of the features of Christianity that sets it apart from the other major monotheistic religions—Islam and Judaism—is its peculiar notion of the Trinity, that somehow God, although one and indivisible, is also three persons (Father, Son, and Holy Spirit, traditionally). The idea of one God in three persons is different from that of multiple independent gods and goddesses in polytheistic religions, although Islam holds that Christianity is polytheistic because of the Trinity belief.

Now I want to consider Dante’s attempt to convey through poetry the mysterious concept of the Holy Trinity, which in his faith was a certainty. On reading the final canto of Dante’s Paradiso recently, I came across an image that immediately reminded me of something else I’d thought of before: the conceptual similarities between our scientific description of the proton and the Triune God; only now a particular detail of Dante’s description of what he had seen made the similarity appear stronger than I had realized before.

Near the end of his time in Heaven (Paradiso) Dante was finally empowered to behold God, his ability to comprehend mysteries directly by sight alone having been enabled by Divine grace. Here is the Singleton translation of lines 115-120 of Canto XXXIII of Paradiso.

“Within the profound and shining subsistence of the lofty Light appeared to me three circles of three colors and one magnitude; and one seemed reflected by the other, as rainbow by rainbow, and the third seemed fire breathed forth equally from the one and the other.”

This is far from being a clear picture, and Dante had said beforehand that description—even distinct memory—of what he had  beheld was impossible. But I was struck this time by how much Dante’s word-painting resembles our own nebulous physical picture of the proton. The essentials of Dante’s vision were three equally sized circles (or spheres) of three colors and two distinguishable types, with some sort of continual interaction occurring among the circles. The image of the rainbows reflected in each other, with each circle yet of a different color, seems to my mind to be saying that the colors are changing, but in a co-ordinated way. I might add that Dante’s original description of God was as a point of blindingly bright white light.

Why does this vision of Dante’s make me think of the proton? Modern physics has discovered that the proton has within it three particles, whose existence a theoretical physicist had predicted and named quarks years before they were first experimentally observed. Two of the quarks in the proton are identical and are called “up” quarks. The other is a “down” quark. In this context, the terms up and down have no meaning except as a way of distinguishing the two types of quark. No directionality is implied by the names. Up and down are examples of what physicists call quark “flavor,” and of course there is nothing related to the sense of taste implied by the name flavor; it’s just a conventional way to designate this particular quantum number or characteristic.

Now, by probing the proton with high-energy particle collisions we can “see” that the quarks are inside the proton, but there is no way to observe an individual free quark, due to the peculiar nature of the force between quarks, which, contrary to the action of other known forces, actually gets stronger as the quarks are separated further from each other, making it impossible to pull or knock a single quark free from its mates. It is possible to break up a proton with a high-energy collision, but only by making new quark combinations, never in a way that makes a single quark visible.

Thus nature seems to present us with a stable and indivisible proton consisting of three quarks, two of which are identical, but no one of which can be seen apart from its union with the other two. What I hadn’t realized before re-reading Dante was that Catholic theology viewed the Holy Spirit as different in some way from the Father and the Son. The Son was “begotten” by the Father, whatever that might mean, and the Holy Spirit “proceeds” from the two other Persons, whatever that means. Thus in Dante’s vision two of the “circles” seemed reflected by each other, these being identified by commentators as the Father and the Son of the Trinity. For me it seems natural to mentally map this pair to the two up quarks. Dante clearly sees the third circle as being distinguishable from the other two, and this third circle would correspond to the down quark in my whimsical analogy.

Can we go further? There is more to the quark picture of the proton than the quark flavors. The quarks all have another quantum characteristic which physicists, for want of a better term, have called “color,” though, of course, without any real connection to what we mean by color in the world we perceive directly. The proton as a whole is colorless, however, meaning that proton states must be made up of one “red” quark, one “blue” one, and one “green” one, which taken together make for a colorless proton. However, the colors are not fixed on any given quark. The quarks are continually exchanging particles called “gluons” between each other. These gluons carry color, so that each quark is changing color continually, but always in a way so that there is one red, one green, and one blue quark at any time. This color exchange is the source of the force that binds the quarks together. I invite the reader to judge the extent to which Dante’s description resembles the picture of quarks held together through color exchange.

Do the similarities between Dante’s poetic vision of the Christian doctrine of the Triune God and our modern, well-established theory of the tri-quark proton amount to more than a curious historical coincidence? Does this analogy go beyond the merely amusing to the deeply significant?

Of course not.

It can’t, can it?

Maybe.

How could it not?

But that’s crazy.

Isn’t it?

Frederick Copleston, S.J., in the second volume of his superb work, A History of Philosophy, says in summarizing a fundamental teaching of the preeminent medieval theologian-philosopher, St. Thomas Aquinas, that God “creates the world as a finite imitation of His divine essence.” One aspect of this is that we human beings with our power of reason and our ability to appreciate beauty and to discern good are created “in God’s image,” as Genesis says. But can this finite imitation of God’s essence also be be seen in the most fundamental parts of the physical universe?

As one who has come to recognize God’s existence, but who has not embraced Christianity fully, partly because of the difficulty in affirming belief in “revealed truths” such as God’s Three Persons, I can’t help wondering if the protons of the universe (all the multitude of protons!) are not so many messages in bottles thrown into the sea of the cosmos, just waiting to be read once their language had been mastered: “Yes, doubting Scientist, here is a coherent image of the Trinity. Ponder my depths and believe.”

More Searchers Arriving at a Place They Never Imagined

February 26th, 2009

I’ve been traveling and otherwise occupied a lot lately, so I’ve really fallen behind my one post a week goal for this blog. I don’t have anything very substantial to post today, but I would like to share some more of the possibly amusing or interesting Google search strings that have brought visitors here.

As I noted before, the most striking thing revealed by an examination of the search strings (of words) people use in Google is how many people approach Google as some sort of artificially intelligent being one can ask questions of, as though of a person. This seems especially to be the case when they have medical concerns (at least pet medical concerns). My post Last Days of Chestnut, Guinea Pig gets a visit or two almost every day, usually from people with a guinea pig they are worried about.

The search strings are sometimes of the hopeless (but Google-appropriate) “how to euthanize a guinea pig” sort, but an extreme example of one treating Google as an online veterinarian (and a psychic one at that) was “My guinea pig has not eaten today and he has a cold. What is up?” In the same vein was: “my son has squeezed our guinea pig will it be ok”.

I used the first of those mentioned above to do my own Google search, and—low and behold—my post came up fifth from the top. Here’s what Google returned for it (word matches in bold):

On-Screen Scientist » Blog Archive » Last Days of Chestnut, Guinea Pig
May 25, 2008 … Our guinea pig, Chestnut, is dying. He will probably be dead before I …. Hopefully the vet is open today. 11:00 am. He’s not, but the … My wife has been felled by the same cold I have presumably, … I say to the intake woman, who is looking at me quizzically, “He hasn’t eaten anything in days. …

Since Google just looks for word matches and doesn’t try to make sense of it all, it came up with a good match, although, except for the “He hasn’t eaten” part, the matched words (today, my, cold) weren’t relevant.

For the second string Google brings up my post third from the top thusly:

On-Screen Scientist » Blog Archive » Last Days of Chestnut, Guinea Pig
May 25, 2008 … Our guinea pig, Chestnut, is dying. He will probably be dead before I …. OK, it’s now the morning of the next day. … He didn’t drink water that was squeezed into his mouth this time, as though reflexes aren’t even working. … Chestnut has been buried in the back yard. My son arrived back from …

Thus, there was a hit on nine out of eleven words (and Google probably ignored “it” and “be” as too common)! Yet the circumstances are totally different, except for the shared anxiety about a guinea pig.

It seems to me that there is sufficient text in the Google excerpts above to have shown the searchers that my post was not what they were looking for, but they came anyway, either through blind clicking or just because it was obvious my post dealt with a dying guinea pig, which was a subject on their mind.

The search string “guinea pig isplaying dead after popcorning” brought someone here too. I hope the “playing dead” wasn’t wishful thinking, if the searcher was referring to his  or her own animal. I had never heard of guinea pigs playing dead (possums, yes), but Google finds a YouTube video (which I haven’t watched) claiming to show this phenomenon. Another ask-the-vet type string was “do antibiotics make guinea pigs tired”. This was a good match by Google’s standards, since my post contains all the words, though, of course, no answer to the question. I also fear that that animal was suffering from something worse than antibiotic side effects.

So it goes. People with sick animals or sick computers go online to look for help, and some of them end up in this out-of-the-way spot. I see several people arriving here daily with MacBook overheating problems (or worries) of one kind or another, which shows it is a real problem, though I suppose not a sufficiently serious one for Apple to deal with publicly. The computer users with problems typically have a better idea of how Google works than the guinea pig owners; they just put in a string of keywords for their searches.

Many other search matches must be the result of coincidence, though it’s not always obvious how. The string “black bean death lottery cycling club” leads Google to put my post Times I Might Have Died as number one on the candidate list, since it contains all the words except “cycling” and “club” (though it does deal with my early bicycle riding). It’s unlikely my post was what the searcher had in mind, but whatever it was, it must not be on the world-wide web, for nothing shows up containing that very specific collection of words.

It may well have been a job hunter that searched for “physics phd fbi”; but, whoever it was, found the following as number eight on Google’s list:

On-Screen Scientist » Blog Archive » Why Gamble? Hire a Physicist.
I should add that when a physics professor called Ron about hiring me several months … what hourly rate I should get as a new Physics PhD (or near-PhD, whichever it was). …. My Appointment with the FBI and a Long-Delayed Connection …

A somewhat interesting point here is that “Physics PhD” was found in the text of the indicated blog post, while “FBI” appeared in the sidebar listing of the titles of recent posts, so even if the person had been looking for my FBI appointment post he wouldn’t have gotten to it directly. Something to keep in mind when searching.

What was the searcher for “trees shame” after, I wonder? I’d like to think it was someone who’d read my post A Painful Christmas Blessing and wanted to come back to it or to direct someone else to it; and my post does come in at number seven in the Google list, but there’s nothing definitive about the two words and no way to know what the intent was. Still, as in all these cases, the searcher did come here, or I wouldn’t know about it.

My post about exchanges with commenters on an atheist blog, Conversations in the Clubhouse of Truly Smart People, has also brought a few people here via Google searches with other purposes. I feel bad about not having advice for those who seem to be seeking it: for example the one searching on “what smart people say in conversations” and the one searching for “smart things to say in conversations”; young people, I hope. Then, there was the one possibly looking for confirmation of his own observation that it’s best to “never let people know how smart you truly are.” I’m taking that to mean that it’s better to play dumb a little, but it could mean never let them find out how dumb you truly are, which has aways been my concern.

I’ve been at this blogging for almost a year now. Thanks to all who have read and especially to those who have written to me (email address towards upper right) these past months.

Catching Up on Thanks for Links

February 2nd, 2009

I’d like to thank a few bloggers for links and kind words. Annie of AmbivaBlog, in her post “White on Black,” wrote the following about the post I made on the eve of Obama’s inauguration: “A white guy from Texas, who remembers what segregation was really all about, celebrates the casting off of those mind-forg’d manacles represented by the election of a black president.  Especially if you are not old enough to remember what segregation was really all about, read this.” Thank you, Annie.

Jim at Stonekettle Station, in a post called “The LHC and Walter L. Wagner, Dangerously Insane (now with more nuts!),” linked to my post “Large Hadron Collider: What’s the Risk?” with the comment “Walter L. Wagner and his adherents claim the support of a ‘growing number of scientists.’ These scientists, as you might expect, are of the same cloth as Wagner himself. Some are outright frauds, nuts, and kooks. Some, while scientists, are on the fringe of actual science itself, or completely outside their area of expertise. None are actually qualified to evaluate Wagner’s alarmist nonsense, and have jumped on the bandwagon largely for the same reason Wagner has. An excellent breakdown of these people can be found at the On-screen Scientist.” Thanks, Jim.

A similar compliment (with link) was paid my LHC post by John the Scientist of the Refugees from the City Blog in his post called “The Soft Underbelly of Scientific Credentialism,” which deals in detail with the undistinguished scientific career of Otto Rössler, one of the two often-cited eleventh-hour LHC alarmists. “And finally, an awful lot of what Rössler has published in recent years looks just plain weird, even to the non scientist. I won’t go into too much detail, but I will quote the article that the anti-LHC crowd is so fond of, the one that the On Screen Scientist referred to when he took Rössler to school back in the heyday of the anti-LHC lawsuits…” Thanks, John.

Let me add that the research (mostly through the internet) that Jim, John, I, and others have done on LHC critics should have been done by the journalists who just took these anti-LHC characters at their word as being serious and worthy of respect. Without necessarily endorsing every psychological evaluation made in the above-cited blogs, I can recommend them as good references on the facts of the sometimes bizarre past activities and the grossly inflated credentials of the main LHC critics. I hope someone at CERN has become aware of this research and will make use of it during the inevitable “controversy” that will ramp up as the LHC restart approaches.

The Traditio et Virtus blog has added this blog to the blog feeds it displays. I’m not sure of the blogger’s name, but I’m guessing I should say thank you to David. The blog Ro-Theoria, which is evidently devoted to the interface between science and religion, is in Romanian, which unfortunately I am unable to read, but I would like to thank Mihai and Florin for putting my blog on its blog roll.

Thoughts of Water on the Eve of Obama’s Inauguration

January 19th, 2009

Certainly everyone recognizes that the election of Barack Obama, a man with a Black African father, to be President of the USA is one of the most important milestones in our history. Yet I wonder if younger people, for whom the extreme racism of the past is not something they have lived through, and who see African-Americans everywhere in the media and filling all sorts of roles in society, don’t in truth underestimate how dramatic a change it represents from even the time when Obama came into this world.

President-Elect (I need say for a few more hours) Obama was born in 1961. The Civil Rights Act of 1964 was passed while Obama was a young child and had little direct effect on his early life, since he didn’t live in the South or even in the USA for part of that time. Some have maintained that by being the son of a Kenyan and a White American woman and by spending four of his early years in Indonesia, Obama has led a life quite different from and easier than that of many African-Americans born of the descendants of slaves and growing up in the South or in the ghetto; say, for example, that of Condoleeza Rice, who grew up in Birmingham and was friends with one of the little girls killed in the infamous church bombing of 1963. That may be true, but it is also completely beside the point as regards the significance of Obama’s election.

To the millions of White people trapped in the racist belief system that largely defined and thoroughly deformed the South (and which seeped into the rest of the country, in a somewhat diluted, mostly unofficial, form, as well) at the time when Obama was born, such a man with such features was not one to be let into one’s own house as a social equal, never mind the White House as one’s President. And let us not forget that the Supreme Court decision outlawing segregated schools in 1954 involved the Topeka, Kansas (home State of Obama’s mother) school system; even de jure segregation was not restricted to the South. That wasn’t long ago!

No one alive today remembers slavery, which had, let us recall, been abolished for less than a hundred years at the time of Obama’s birth. We can read about slavery in the USA—I recommend Genovese’s Roll, Jordan, Roll: The World the Slaves Made for a thorough description of life under slavery and an analysis of how the oppressive system was maintained—and try to imagine what it must have been like, but imagining is not living. Thanks be to God, we have neither felt not inflicted the lashes of the whip, nor lived, as Lincoln did, knowing that whippings and worse were being carried out in our country, with the sanction of the law, on men and women viewed as outright property to be bought and sold.

As those who lived during slavery days have all passed away, so have more and more of us who grew up in the days when Slavery’s unrepentant ghost ruled in the South, during the so-called Jim Crow era, in which separation (and of course inequality) of the races was cruelly enforced by the State. I came to manhood as a White person in Texas during that time and under that system. Though I have no doubt that the system as it existed in Alabama and Mississippi was even more oppressive than the one in Texas, except perhaps in some parts of East Texas, the Texas one was bad enough, unspeakably bad in fact. Yet, anything one is born into seems “normal” at first, and it is only over time that both the injustice and illogic of everyday life can come to be recognized.

I’m sure I’ll have more to say about my own experience and the development of my views and feelings later, but for now I will just make one point. It was the courageous Black demonstrators such as the students who engaged in the lunch counter sit-ins in 1960, that made it inescapably obvious to me that the wrongs of this system were keenly felt by those it oppressed, and that it had to be ended. It’s one thing to recognize an evil abstractly and another to have it firmly grab you by the collar to demonstrate how painfully unbearable it is for those suffering its most direct effects.

Eventually the Civil Rights Movement had the whole country by the collar. President Lyndon Johnson got the Civil Rights Act of 1964 through Congress because its time had come, as shown by the thousands of Civil Rights demonstrators clearly willing to die for the Cause, and not because he was out in front of the country on the issue. Yet, he was out in front of his fellow White Southerners, and I’m glad it was a President from Texas who played an important role in abolishing all the trappings of Jim Crow.

Even the recognition that the system must be ended as soon as possible was not enough to bring a full realization of just how bad it was to live on the oppressed side of the color line. I remember how in 1964 or 1965, my wife and I, both students at the University of Texas, had occasion, through work in a political campaign trying to elect the first Black man to the Austin City Council, to get to know a few people from the other side of the racial divide in a way that allowed us to speak freely.

During a conversation with one of the Black campaign workers, a man named Ed, who was a few years older than I, we learned more about what the thoughts had been of those suffering directly from the racial oppression. Although it shouldn’t have been, it was shocking to hear Ed matter-of-factly talk of the intense hatred he and his high school mates had felt toward Whites. They had fantasized about the most effective way to kill a large number of us at one time. An attack from the air on a crowd at the University of Texas football stadium had been deemed most promising, as there would have been tens of thousands of Whites in a concentrated mass, with no Black fans in the stands and no Black players on the field. No Black players—can anyone who wasn’t alive then imagine that? How common were such fantasies of mass killings? I imagine they were common.

Racial prejudice went far beyond wanting social separation of the races for a lot of people, for the Jim Crow segregation system served not only to limit social contact between the races (especially between Black men and White women, it should be noted), but also to stigmatize Black people as inferior and, beyond that, as irremediably unclean in a way that could contaminate Whites who made physical contact with them.

I can remember, as a young child, having some adult (not sure who, but not my mother or either of her parents, I’m sure) telling me not to put money in my mouth because “some nigger” might have handled it. The point of this was to convince me I shouldn’t put coins in my mouth, not to  promote the idea that Black people were especially unclean, which was assumed in the admonition; but of course this is the way such notions are transmitted to a young child. I don’t remember accepting that idea fully, as it didn’t really make sense, but I’m sure its prevalence had an effect on my early view of things.

Consider the maintenance and enforcement of separate drinking fountains for the two races. From where we now stand, separate drinking fountains for the races might seem an inconvenience and an indignity, one more way to make a point of the second class status of Black people, yet not that significant compared to impediments to voting, gross inequality in education, and subservience enforced by violence. The race-specific fountains were found only in places where the races were bound to be intermingled to some extent: court houses, train stations, department stores, etc. There was no need for a dual-fountain system in the schools, which were already single-race institutions. But it would be wrong to minimize the effect of segregated water fountains. The segregation of water fountains showed how deeply irrational the ugly ideology of racism was, and at the same time served to reinforce and perpetuate that ideology.

If Barack Obama and his mother had come to my home State when he was two years old, one can imagine the stares or worse that this White woman with an obviously mixed-race child would have received. What if her little boy had been thirsty? Which public drinking fountain should little Barack’s mother have held him up to? White for her race or Colored for his? The segregation of water fountains was based on the way you looked. Two-year-old Barack Obama, future President of the United States, would have been judged Colored and thus too contaminated with Blackness to drink from the White fountain.

Back then, a White person conscious of the injustice of the system, might still, while maintaining hope for reform towards greater equality within the confines of segregation, make the case that separation of the races was something that each race really wanted and that having schools and other facilities that were separate but equally funded, say, was a morally acceptable solution to the problem of racial differences and antagonisms. And in fact some people did hold such views. One could work for more funding for the Black schools, at the risk of being called a “nigger lover” of course, without overturning the whole system of segregation.

But what about those separate water fountains? They betray the diabolical worm in the rotten heart of the Jim Crow system, exposing the depth of irrationality, fear, and superstition that was inherent in the ideology of White supremacy: that the Black race was considered, not just different, not just inferior even, but unclean in the way that lepers were in the Old Testament and that the caste of Untouchables still is in some rural areas of India.

So even if the schools had been made “equal” and the streets in the Black neighborhoods paved (as so many weren’t), those segregated fountains would have remained to proclaim that one race was considered unclean, which in practice of course served to justify the denial of equality of resources and living conditions to people of that race. And every Black person that drank from the Colored fountain had to do it knowing there was more to it than mere social separation of the races involved. Every White person had the idea of possible contamination through interracial contact reinforced or first suggested by those signs designating race above the fountains.

As an aside, I might add that President-Elect Obama’s mixed-race parentage does more to demolish the myth of racial contamination than the election of a “completely Black” person to the Presidency would have. Obama’s election likely causes Nazi Klansman David Duke even more consternation than Jesse Jackson’s would have.

Laws can change attitudes. We have seen it. Some false ideas can’t survive long without the oxygen supplied by State support. Can laws change hearts? Yes, over time certain laws can—by changing behavior in a way that nullifies fear. When those artificial, State-enforced barriers were removed, the exaggerated ideas of difference and status they engendered and maintained began to weaken and fade. This was partly due to the older, more inveterate racists dying off and being replaced by a younger generation not subjected to the constant subtle propaganda on the dangers of racial contamination. But I feel sure that some people felt their own irrational fears subside. Remove the separate fountains and you remove the constant message that one group of people is to be shunned as unclean. You drink from the same fountain, even swim in the same pool, and nothing bad happens. Life goes on.

I think I am pretty well immune to political enthusiasm (being overly cynical or negative some might say); so the election of Senator Obama was not something that elated me from the standpoint of partisan victory, expectation of sweeping positive change, etc. the way it did so many I know. Nonetheless, I have had a feeling of deep satisfaction in Obama’s election from the standpoint of its freeing us from the past, and I have even felt joy in the contemplation and experience of how much this election has meant to so many, especially those who remember from personal experience the days they were deemed unfit even to drink from the same fountain as White people. Now I feel myself being drawn to unrestrained celebration when the actual inauguration takes place.

President Abraham Lincoln, the Great Emancipator, could not have foreseen that an African-American would ever come to fill the very office he held. Yet Barack Obama is about to be sworn in as President with his hand on the Lincoln Bible. Let the waters of reconciliation flow forth from the rock of our nation’s foundation! Let us all drink from that one fountain!

The On-Screen Scientist (Finally) Speaks Again

January 6th, 2009

Back in May, over seven months ago, I posted an audio version of a blog post (Dangerous Experiments, audio here), thinking it might be a move towards podcasting. Well, that didn’t happen for various reasons, partly my dissatisfaction with the way I sounded and partly the trouble it took to record with decent sound. I’m afraid my voice and diction are pretty much the same as they were before, but I have found a technical solution that makes it easier to record. If you’re only interested in the results, you can jump to the end.

For those interested in technical stuff, here are minimal details of how I recorded this latest version of an early post called Don’t Gamble, Hire a Physicist. A big improvement was getting a Blue Microphones Snowflake USB Microphone (for around $50). I had a good microphone before, but it was overkill for this task and required too much setup, enough to keep me from playing around with it. The Snowflake just plugs into my MacBook Pro directly, and no external power source is needed. The sound is fine for this application.

I recorded using GarageBand, which comes free with any new Mac. One thing that is not intuitively obvious is that you have to set the input device for GarageBand directly through its preferences. It does not default to what you have set using the Sound System Preference. This caused me some puzzlement and soundless delay until I realized I had to choose the Blue Snowflake in GarageBand.

Once you get the hang of it, GarageBand is great for recording something like a podcast, though I did not use the explicit podcast mode, since I just wanted to end up with mp3 and m4a files I could upload. It was easy to go in and replace flubbed sentences with corrected readings, using visually intuitive editing of the soundtrack.

The only way I could figure out to get what I wanted as a final product (mp3 and m4a files) was to use GarageBand’s Share->Send Song to iTunes menu item to do what its name implies (even if you don’t have a “song”). Once you have your recording in iTunes, you can save it in various formats.

That makes it sound simpler and more intuitive than it is. Through a klunky, kludgy method worthy of Microsoft, this Apple-branded software requires one to do the following to create an mp3 file. First, set the format iTune uses when importing from a CD to be mp3. This is done by setting an iTune’s preference. Note that the outdated Apple Help for iTunes gives incorrect instructions on where those import settings are to be found. In the latest iTunes, there is a button that takes you to import settings on the general settings panel of the Preferences (instead of these settings being among the Advanced settings). Confusing? Yes, it is.

Once you’re set up to import to mp3, you will magically find an item called “Create mp3 version” under the “Advanced” menu of iTunes. This enables you to make your mp3 file, which you can then locate and upload if you want to. Now, if you want to make another version for m4a, you have to go back to reset the import preference. No, it’s not called m4a; it’s called AAC. If you actually want to import a CD, and have a different format preference for importing, you’ll have to go back and change the preference again. Of course, you’ll probably forget to. As an aside, this is some of the worst software design I’ve ever seen on something blessed by Apple. If anyone from Apple is interested, I can tell you how to fix this confusing situation in about two sentences.

Click one of the following links to hear me reading Don’t Gamble, Hire a Physicist: mp3 version or m4a version.

A Painful Christmas Blessing

December 28th, 2008

Among the strong emotions that can make an event stick in the mind is that of shame, the intense recognition of one’s failings, especially that of selfishness, even when the shame is completely internal and private. One of my strongest such memories is associated with a short time after Christmas many years ago, when I was eight or nine years old.

My family was not well off back then, to say the least. We lived in a small Texas town in a small apartment, which was in one of only two clusters of apartments I know of in town, not counting a group of houses I mention below. We had one side of a single-storey structure, separated from two other apartments by a long hallway that ran the length of the house. We had the comparatively luxurious apartment, not only larger but with its own bathroom. The tenants in the apartments on the other side had to share a single bathroom in the hall. Despite our very modest dwelling place, I never thought of us as poor; this was just where we lived, and it seemed fine. There was one other apartment house of a similar design close by. The landlord’s house was on the corner, flanked by the two apartment houses, one on each of the intersecting streets.

Our family always had a Christmas tree: a very small tree, smaller than any that I see on tree lots these days. I can remember our having a tree on top of the radio (radios were big pieces of furniture back then), placed in the front window so people going by could see the colored lights. How big was the tree? I’m guessing it was about three feet tall, if that. When my sister and I were very young, any tree in the house that we decorated and put lights on was wonderful; but, as we grew a little older, we either saw pictures of bigger trees or encountered them in friends’ houses and began to complain about the small size of our trees and to beg for a bigger one. Whether from space or cost reasons, my parents did not buy one of the bigger trees; and the Christmas tree was no longer such a perfect source of joy. I suppose we were coming to sense our lowly status and suffer from it. We had made a fuss about the tree to the point of reducing everyone’s pleasure in having one.

Now, Charles, one of my best friends, had a paper route. He delivered the Fort Worth Press, an evening paper, which he was able to do after school. Charles was only a year older than I, as I recall. There were a few times that I went with him on his paper route, which took us through parts of town that were otherwise foreign to me. Among his subscribers were African-Americans in the section of town where the streets were far inferior to those in the rest of town. It felt a little funny to be going through the area in which all the residents were Black, though I don’t recall being afraid to do so. Somewhere by the railroad tracks was housing for railroad workers. These houses were painted in special colors that designated them as railroad-owned buildings. The first colors I remember were yellow with black trim, though that changed later to some other combination, I think green with red trim. The railroad workers tended to be Mexican-Americans. I knew that the families living in the railroad houses were poorer than mine.

Sometime after the Christmas that was marked by my sister’s and my complaints about the smallness of our Christmas tree, long enough after Christmas for it to seem well in the past, I had occasion to accompany Charles on his paper route. We paused among the railroad workers’ houses for Charles to throw a paper on one of the porches. Unexpectedly, there on that porch I beheld an object, evidently cast aside and waiting to be disposed of, the sight of which suddenly brought my deepest inner self to its knees in shame and guilt. It was the tiniest Christmas tree I have ever seen, less than half the size of the smallest my family had ever had. I could not imagine anyone would consider such a tiny thing as even a candidate Christmas tree. And yet, there it was, bearing witness to the fact that one family had made do with it, had likely found it a source of joy. Pitifully, pitifully small it was. And yet I had complained about having to do with so much more. I don’t know that I have ever felt more ashamed about anything. No, I didn’t run home to tell my mother I was sorry for my complaints. As always seems to be true for me in these cases of sudden soul-jarring experiences, I didn’t say anything about this to anyone at the time and have mentioned it only to an intimate few until now, partly, I suppose, because one’s shame is not something one likes to publicize.

What was the source of the shame? To what standard was I comparing myself and why? I don’t fully know the answer to that question. I imagine I may already have been somewhat conscious of how petty it had been of me to have lessened our family’s enjoyment of the marvelous custom of bringing a tree into the house to decorate for Christmas. Certainly my mother had always made a point of not letting us look down on anyone less fortunate than ourselves; and by making such an issue of the tree, I had been doing that without knowing it. In essence it was the comparison between my own petty behavior with what I imagined to be that of the poor family, and the consciousness of my ingratitude for what I had that shamed me. Before whom was I ashamed? My parents weren’t aware of it at all. So, it was before my own conscience, and in some sense before God that I was ashamed, though I don’t remember thinking of it in religious terms at the time.

It seems that feeling shame as the proper response was something innately obvious, like recognizing some very basic principle of arithmetic or logic. I had no choice in the matter, that’s for sure. Unfortunately, I did not become a saint as a result of the experience, since selfishness can take many forms and is very adept in its use of rationalization; but the rebuke I received from that tree may have spared me the worst tortures of covetousness. I don’t know that I can say that I’ve never envied anyone’s material possessions since that day, but I know that the vision of that pathetically small tree shamed me so deeply that it changed me; and I count it a true Christmas blessing. To me, that tiny little tree seems as emblematic of beautiful dignity in poverty as a baby lying in a manger.