March 8, 2007

Safety first


XKCD, illustrious webcomic, often concerned with the cartoonist's fear of velociraptors, recently received a missive from a paleontologist. There isn't anything I could possibly add, so here is most of it:

Dear sir,

[...] I notice that many of your comics revolve around people (including yourself) with a phobia of Velociraptor. This phobia revolves around Velociraptor overcoming some 70 million years of extinction and the geographic barriers between its home and yours, leaping out of the underbrush and/or through the kitchen, and doing unmentionable things to your innards with its teeth and claws.

I see little point in addressing the substance of your fears, as that’s perhaps best to someone more qualified to deal with the human mind. I hold a Ph. D. in vertebrate paleontology and am somewhat more qualified to address the symptoms. To wit, I would like to help you overcome your fears by successfully defending yourself against Velociraptor.

It is widely known in the field of agronomy (e.g., Avery, 2002) that birds are repulsed by methyl anthranilate, a natural compound found in many of the less sweet fruit varieties. Methyl anthranilate has been used (with some success) as a bird repellent on crops. Now, we know (e.g., Gauthier et al., 1988) that modern birds are descended from dinosaurian ancestors, of which one close relative was Velociraptor (ibid.). Much as lab rats respond to drugs like humans, it is entirely possible that Velociraptor will respond to methyl anthranilate as does the common crow or European starling.

Thus, I recommend you carry around a loaded SuperSoaker filled with Concord grape juice. Fresh-squeezed would be ideal, but from concentrate should be effective as well. This will not only have the theoretical asset of protecting you from Velociraptor, it will have the pragmatic asset of protecting you from thirst.

In appreciation of your Web comic efforts, I will happily waive my consultation fee.

Daniel Snyder, PhD
Knox College

March 7, 2007

dodecalogue


This shouldn't be noteworthy; typical religionistas ignoring their own rules.

...must, avoid, urge, to be self-righteous. Not that these folks ever do! Zing!

[via]

March 6, 2007

Red Letter Day

A recent novel, Nineteen Minutes, describes a high school shooting in an small New Hampshire college town eerily similar to Hanover. In the sense that it contains an elite school and borders the specific towns of Norwich and Lebanon, which only Hanover borders. In the novel an "ostracized teen" kills 10 people in a rampage at his school. I heard the author lamely pretending that the story did not describe Dartmouth on NPR last week. Interestingly, the day the shooting is to take place is today, March 6th. Despite a concerted effort by the principal to calm fears of some kind of copycat spree based on this extremely lame novel, a fifth of the students didn't show up to school today. Terrible job by everyone involved.

March 5, 2007

100 Greatest Red Sox

Say what you will about Red Sox fans, they do nothing halfway. It is in that spirit that I must point out the existence of Top 100 Red Sox, a daily countdown of, well, you get the idea, written by a coterie of knowledgeable bloggers. 100 is a lot of people, there is some room for mistakes in ordering, but that doesn't make arguing about it less fun. John Cusack would be jealous.

After a little estimation you realize that the bottom third are going to be the Ike Delocks of the world. Listing the greatest 100 anything is quite a challenge, and it is hard to figure out what serious quantitative differences they used to separate #81 from #82, but as an excuse to write about and debate players of different eras it definitely works. It isn't that I necessarily have strong feelings about Ira Flagstead, but check out this paragraph:

The club honored the Montague native with “Flagstead Day” in 1928. “Boston’s outfielder” was presented with a variety of gifts, including a new car and $1,000 in gold...A .290 career hitter, he closed out his baseball career with Tacoma of the Pacific Coast League. He died at the age of 46 in March of 1940.
$1000 in gold? Died at the age of 46?! Who the hell is this guy?

Nothing matches baseball for obscure knowledge, and this countdown has it in spades. By the mid-sixties they started getting to people who I already knew, so it became interesting for the intended reason, and I applaud their venture. How they are figuring out that relief pitcher and Mike "The Iron Eagle" Timlin comes in at #59 I have no idea. (I just started calling him this and it made sense. It also happens to be the name of my car.) Their approach is supposed to be primarily statistical, but unless they are compounding win shares (something I didn't see any evidence for) it isn't immediately clear how they are comparing say, a 3rd baseman to a pitcher, or a relief pitcher to a starter. But this ambiguity is what makes it interesting. They have declared their intent to acknowledge only the years played in a Boston uniform, rather than the career as a whole. Guys like Babe Ruth, Dennis Eckersly, and Jimmie Foxx being notable examples of this. It will be interesting to see what they place the most emphasis on.

I would say that the #1 spot is a foregone conclusion, but the rest of the top 10 is up for grabs, especially depending on the historical sensitivities of the writers. This group of bloggers is quite thoughtful, so I am confident they will not trend embarrassingly to the recent when a bit of perspective is called for. I doubt that I could accurately predict their choices, but I can certainly give my own. It will be interesting to see how in line I am with their picks.

1. Ted Williams
2. Cy Young
3.
Pedro Martinez
4. Carl Yastrzemski
5. Tris Speaker
6. Roger Clemens
7. David Ortiz
8.
Harry Hooper
9.
Smokey Joe Wood
10. Bobby Doerr/Carlton Fisk

No Babe Ruth, no Schilling (though Game 6 alone entitles him to a top 20 spot at least), and Clemens gets bumped way down for being backstabbing asshole (these things matter.) And Ortiz's spot is on basically on loan. If he retired tomorrow he'd crack the top 20 for the astonishing, mind-boggling, incredibleness of his 4 short years, but some more time and performance is necessary to justify that position. After all, has he let me down yet? They aren't quite using the same rules as me and are trying to apply more statistical rigor to their run-down, but hopefully I'm not way off.

I expect the brain trust over there to be kinder to Ruth, and slightly less keen on Ortiz, Yaz, and Fisk, but there isn't a great deal of flexibility there. In my mind Pedro and Cy Young are sort of a draw, but despite pitching only part of his career in Boston, Young has the goddamn pitching award named after him. It is impossible to know how he would fare in today's league, but back then he was one of those psychos who pitched both games of a double header, scoreless. And then threw a perfect game the following day. If I had it my way Clemens wouldn't be on there at all, but you can't forget him entirely. Since I can't purge him from the top 10 I'm copping out with #10. Whatever, I don't have rules, or any claim to expertise, or a readership who will be mad at me if I violated either.

I will keep my readership appraised of the results.

March 4, 2007

Saturn: it was real after all

Here is one of those lousy diluted posts I was just promising.

-I seem to have beat the actual physics bloggers to the punch with that Jim Carey-Conan O'Brien Quantum physics video...by about a week. I also managed to figure out (and get confirmation) that the paper they discussed was Phys. Rev Lett. 83 (1999) by
L. J. Lapidus, D. Enzer, and G. Gabrielse: "Stochastic Phase Switching of a Parametrically Driven Electron in a Penning Trap." To summarize: I'm amazing.

-Obligatory shot of the sixth planet recently captured by Cassini. Two observations:
1. I have recently been teaching assisting an intro astronomy course that involves looking at Saturn through a telescope. A partially mechanized and difficult to align telescope in an awesome 19th century shed with a roof that opens by a crank on the wall. A lot of the students first react when looking through the eyepiece by saying something like "it looks so real!" I can partially understand this impulse; when first visiting famous locations or monuments I have usually had a similar reaction, where I'm not really astonished by the sight itself, but primarily at the familiarity of it and the novelty of beholding say, the Lincoln Memorial, in person. It must be some kind of side-effect of being extremely familiar with things that ought to impress us that makes this the first thought to come to our minds in these situations--still, people should try not to vocalize their bewilderment at the existence of well-known objects. You just sound retarded.
2. Cassini may be the only NASA mission which is way more famous than its namesake. Think about it, you have Galileo, Apollo, Ulysses, Hubble, Chandra, and so forth. Chandrasekhar may not be known to the general public, but the kind of people who are aware of the telescope certainly know who he is. All I ever knew about Cassini was that he discovered the gap in Saturn's rings, and some further research shows that he discovered of Jupiter's Great Red Spot as well. Let's face it Cassini fans, they would have found those sooner or later anyway.
(Credit goes here)
(Updata: Astronomy Picture of the Day is riding my coattails--as usual)

-Some clever cognitionists have determined that 17 is the most random number. Inspired initially by the good folks at Cosmic Variance they set out to compile poll data confirming the original suspicion that given a choice from 1 to 20, 17 is the most frequently picked "random" integer. It is indeed so, with roughly four times the popularity expected in a truly random distribution. Even numbers and multiples of 5 scored poorly, and similarly prime numbers like 7, 13 and 19 were the runners-up. They were able to get around ~350 responses from people who were presumably not aware of the hypothesis being tested (they put a poll on their site without explaining why--hopefully they weren't biased CV readers). They also found some other effects like a preference for primes and little preference for odds. I would like to see more data though, I am betting that the primes thing is only true for these low numbers and that with a larger range you would see significantly more odds than evens as well as a severe allergy to multiples of 10. They do a round up here.

-Far, far overdue acknowledgement of "How to Tell a True Lab Story," a parody of this Tim O'Brien vignette that I only today encountered. Anyone who, like me, has ingrained high school memories of the disjointed Vietnam stories in The Things They Carried will recognize and appreciate these paragraphs.

A true lab story is never moral. It does not instruct, nor encourage virtue, nor suggest models of proper scientific practice, nor restrain graduate students from doing the things that graduate students have always done. If a story seems moral, do not believe it. If at the end of a lab story, you feel uplifted, or if you feel that you have learned some useful fact about science, you have been made the victim of an old and terrible lie...

You can tell a true lab story by the questions you ask. Somebody tells a story, and afterwards you ask "Can you really destroy a bathroom with liquid nitrogen in a soda bottle?" and if the answer matters, you've got your answer

March 3, 2007

Standards and Practices


I've been gradually reforming the site. Over time I've altered the layout, put in rotating headers, a "favicon" (before they were ubiquitous!), random quotes, "highlights" for what seem like good posts, and most recently a bunch of links. Last fall I dropped that lower-caps only thing (it is actually harder). But a slight change in content might be needed as well.

The thing is that the format of this blog is somewhere in between obscure science/history linking and actual writing in the form of
wildly irresponsible theories. I have been primarily motivated by what I don't want my site to be. By the time I hear about an interesting story it has usually been around enough that linking to it would be derivative and lame. Once in a while I get the jump on them, but there are more than enough link-type blogs out there in the world, all talking about exactly the same things, without adding one more. Also, there is absolutely no way I would want to produce one of those far-too-personal descriptions of the minutiae of my life, nor an overwrought soapbox for my political views. Any of these things can occasionally be done well...but not by me.

On the other hand, it isn't like I can realistically churn out high-quality exposés on North Korean newspapers everyday. So it seems like I have 3 options: (a) do nothing differently, try to post more; (b) feel less responsible for the stuff I link to, worry less about not being original; (c) lower my standards generally, more anecdotes, more short observations.

I think I'll be going with (b) and (c) for a while and see if I get too watered-down. But I won't be writing any wimpy entries about my feelings. Because I don't have any.

March 2, 2007

One of those flags is hung wrong



For unknown reasons I am strongly compelled to point out this excellent Rushmore-style video for 16 Military Wives by hyperliterate prog-rockers, The Decemberists. I like how the video is completely unrelated to the song lyrics, which are themselves only vaguely anything. Linking to videos has a "watch this while I go make a sandwich" type laziness attached to it, but I'm hungry and it's worth watching, so enjoy.

March 1, 2007

Please imagine what you would have thought 10 years ago...





and now...


I would say that makes 3 out of 4 Horsemen of the Apocalypse, wouldn't you?

February 25, 2007

371 Years of Treason

On September 22nd, 1776, on his way to the gallows, Nathan Hale proclaimed his only regret to be that he "had but one life to lose for my country." Since then, it has been all downhill for Connecticut in terms of loyalty.

A spy for the Revolutionary forces, Hale was caught behind enemy lines and executed for his role prior to the Battle of Long Island. He was America's first espionage agent, but is celebrated almost entirely for his famous last words -- which differ in their few vague accounts and which most scholars believe to be a repetition of a phrase he did not come up with himself. In any case, for being this sort of fearless, patriotic Christ-figure, Nathan Hale is honored far and wide with postage stamps, statues, and an obscene number of elementary schools.

[Incidentally, the primary witness to this speech was a British Colonel John Montresor. Despite the distinctiveness of this name
and the modest notoriety he achieved for his role in the war he seems to bear no relation to the Montresor of Poe's Cask of Amontillado. Not that this would make any literary sense either.]

Since Hale uttered his celebrated line, Connecticut history has been nothing but a parade of backstabbers and turncoats. In fact, I will demonstrate
that treachery is the state's most basic identity. Let us consider some notable historical figures in the intervening time. Not more than four years later, Benedict Arnold was thwarted in his plot to surrender West Point to the British. That would be the Connecticut-born, Benedict Arnold, synonymous with betrayal.

That one is too obvious, how about something more obscure? The Hale execution story was popularized primarily by one man, William Hull, then a lower-level army officer who heard of Hale's bravery while meeting with a British officer the following day. By the War of 1812 he had worked his way up to the level of general, commanding the northwestern army. Facing what he thought (erroneously) to be vastly superior British forces approaching Fort Detroit, he promptly surrendered THE ENTIRE NORTHWESTERN ARMY. Despite popularizing Hale's all edged speech Hull did not seem willing to regret that he didn't even bother to try losing his life to defend the whole Midwest. Few subordinates believed this action to be even remotely necessary, and a court marshall agreed. Hull was ordered to be shot, and only spared at the last minute by President Madison.

In modern politics, we have Joe Lieberman, Bush's shadow. Go-to guy for really misguided Iraq War ideas and repetition of corrosive "people who criticize the war hate the soldiers" type rhetoric. Who lost the Democratic primary and then stabbed the party that supported his entire career in the back by running as the Independent/Connecticut for Lieberman nominee. Who periodically threatens to break his promise and side with his real soul-mates in the Senate, overturning the intention of the people who voted for him with the expectation that he wouldn't do that. Not to mention the fact that almost none of the positions he espouses are held by the actual people of his constituency in a state that dumped all but one of its Republican representitives last November. Classic Connecticut.

[
Speaking of which, someone with an excellent sense of humor actually joined Joe's nominal "Connecticut for Lieberman" party. He called the Secretary of State, found out that no one, not even the Senator, had bothered to become a member of the party named after himself. As the only member of the Connecticut for Lieberman Party, Dr. John Orman held a convention at his house, nominated himself for chairman, seconded his own nomination and voted for himself. He then adopted a number of party rules, including "If you run under Connecticut for Lieberman, you must actually join our party."and "If any CFL candidate loses our party's nomination in a primary, that candidate must bolt our party, form a new party and work to defeat our party endorsed candidate."]

Speaking of people who love the President, need I remind you that no one is working harder to further the terrorists' goal of fomenting terror in America and the rest of the world than Connecticut-born George W. Bush himself? Freaking out the country with vague threats, doing the enemy's job by building up the danger they pose and keeping them constantly in the limelight, while at the same time wasting vast resources and efforts fighting people who are not them. Not to mention the obvious stuff like allowing bin Laden to avoid capture and creating a generation of impoverished displaced Muslims who hate America. Whether or not he's actually trying to, it is hard to deny that he's helping the enemy at this point.

Now to more important matter, baseball. Connecticut has always been the least authentic part of New England, or so it seems to the rest of us. In the "real" New England states like Rhode Island and Massachusetts, I think that the source of our unease with Connecticut is their non-allegiance to the Red Sox, and to a lesser extent, the Patriots. We just don't know how to deal with people who call themselves NEer's but don't support the very thing that unifies our region. This intrepid blogger could write a book on Red Sox-Yankees dynamics in CT, and frequently laments the grating fact that the New England Sports Network, which carries the Sox, does not serve Fairfield Country. Is it too much to expect a channel that calls itself the New England Sports Network to operate in, you know, New England?! In any case, it is merely symptomatic of a larger problem, the overflow of fair-weather baseball fans into what is rightly our dominion. Here is how it is supposed to work-

Officially designated Red Sox Area: New England.
Officially designated Yankees area: NY, NJ, remote regions of the country with losing teams and poor baseball knowledge, much of Japan.

Oh, and I forgot, BOS: Dominican Republic, NYY: Nicaragua. But Connecticutters are not content to stick to the pre-arrangement. Instead, many of the weak-willed betrayers of western Conn. took it upon themselves to divide up the state as they wish. The NY Times published a fascinating summary of the boarder dispute last summer.

Which all brings us back to Hale, who was, at the very least, a patriot who has inspired millions to serve our nation with his brave demeanor. But is it surprising, after all this, that Connecticut's official state hero is a spy? Who probably didn't come up with or actually utter the very words for which he was immortalized? And what of Conn.'s familiar appellation: The Nutmeg State? Astute knowers of trivia will recognize that this handle refers to the shrewd practice of peddling fake wooden nutmeg to southerners and similarly dimwitted fellow residents. So ingrained is Connecticut's deceitful nature that the state's nickname itself celebrates their own duplicity! Quad erat demonstratum.

So next time you are enjoying the manatee exhibit at Mystic Aquarium, watch your back.

What shocks me about an electron in a Penning trap is...


via videosift.com


I saw this the other night and laughed fairly hard. It was inserted directly into the middle of an interview, which was proceeding not unnormally up to this point. I wish people really talked this way. I also wish I could find the article it is from.

Seconds later, this happened.

Update: Some goons took down the YouTube video but it is still available here.

Update II: I think that previous update no longer works. Now it is here.

Update II.V: As of Jan 2010 the only place I can find it is here.

Update III: The link in update II may still work, but either way, here is the transcript, courtesy of mettadata.

Jim Carrey: I was just reading this incredible paper on the stochastic phase-shifting of the parametrically-driven electron in a Penning trap; and apparently, a bistability arises dynamically in the specific parametrically-driven systems, because the phase \psi of the electron’s steady-state oscillation can either have the two values separated by \pi.

(…)

Conan O’Brien: You know, it’s funny, what shocks me about an electron in a Penning trap is that most amplitude collapses are accompanied by a phase flip. Given that the rate of escape from the trap depends exponentially on an activation energy \textit{E} as the diffusion constant \textit{D} approaches \textit{T}_{n} and \rho approaches \epsilon^\textit{-E/D}.

JC: Absolutely. No question there.

Max Weinberg: I don’t know about that, Conan. Have you considered that the parametric driving force excites a nearly-resonant electron oscillation at the drive frequency, \omega_{d}/3=\omega_{z}+\epsilon? It’s a classic example of the period-doubling that occurs when a linear oscillator is strongly driven.

JC: Max. Did you just say that \omega_{d}/3=\omega_{z}+\epsilon?

MW: Yeah.

CB: (Laughs). It’s actually \omega_{d}/2=\omega_{z}+\epsilon! Wow, Max. Max, you know nothing about quantum physics!

MW: You’re right.

February 24, 2007

Colloquium Drawing of the Week 6


"3 if by air"

Properly viewed by opening this up in a different tab.

February 23, 2007

timeline

An unusual thing just happened. For whatever reason the cable TV hiccuped, but continued to broadcast a still image of the screen without sound. This itself isn't so strange, no one can know the ways of the TV network malfunctions, but it certainly led to a bizarre learning experience. When it stopped I just sort of stared at it for about 7 seconds, looked around the room to see if anything was moving, then automatically checked my watch. The seconds were ticking by, confirming my original suspicion that it was the television that had ceased to work properly, not the passage of time.

I know this sounds like I'm just being smart-alecky, but it was my actual, unthinking, reaction. I had a 99% certainty about it being a cable problem, but some part of me wanted to rule out the time-freeze alternative decisively. No matter how sober and evidence-based your style of thinking may be, you can never stop these funny little quirks from slipping in there.

February 22, 2007

Magnet-ism

This is a lazy post. First, a video of a ferrofluid, a liquid with creepy nanoscale magnets suspended in it. Who ever said physics wasn't evil?



Speaking of evil, here is a famous frog levitating in a magnetic field. Everything is diamagnetic if the external field is strong enough...but only frogs are unlucky enough to get used in these experiments.