29 August 2008 @ 07:43 am
redress: Dictionary.com Word of the Day  
redress: to set right.
 
 
29 August 2008 @ 01:54 am
The recent bigfoot flap…a little late  

I've spent my evening curled up with a wracking cough and nasty pains in places I didn't know I could hurt — I think I sprained my diaphragm — and while stumbling dumbly through the web, I belatedly found the story of the recent Georgia bigfoot. I know, it's last week's news, but I'm feeling a little addled.

Anyway, it brought back old memories. Way back when I was a teenager, I used to build balsa wood model airplanes in my grandparents' attic. It was a good deal: my family didn't have to deal with the smell, I didn't have to worry about my brothers and sisters stomping on a delicate wing, and Grandma would bring me cookies and milk. There was also a stack of my grandfather's manly men magazines to browse while I was waiting for that last coat of dope to dry. I don't know if the genre is still around today, but in the 60s and 70s, at least, there were these magazines like Argosy and Saga that were full of manly stories of manly fellows braving dangers and hunting and exploring, with the occasional woman in a bikini lolling on the beach as the manly frogmen fought vicious sharks, and such like. One of the stories I recall most vividly was the Minnesota Iceman, which the article claimed was the most amazing evidence for the existence of bigfoot ever. There were several accompanying photographs of the poor guy in full color, frozen in a defensive pose, one arm thrown up over his head, with a bright splash of red over one eye, where he had been purportedly shot.

It made an impression. I recall reading up on cryptozoology quite a bit after that, trying to figure out whether it was real or not. I regretfully came to the conclusion eventually that it was a complete fraud, largely because I couldn't find any legitimate scientific sources that had anything to say about it, and even in my teens I knew that Argosy was not a credible source of scientific information. Curiously, I now learn that creationists haven't figured that out; Answers in Genesis uses the Minnesota Iceman as an example of scientific fakery ala Piltdown Man, accusing "experienced zoologists and scientific journals" of going out on a limb for a bogus missing link. At least now I can place their scientific expertise as somewhere significantly below mine…at the age of 15.

The Minnesota Iceman was a fake by a disreputable carnie. What about the Georgia Bigfoot? The lesson learned there is that people have gotten stupider since the 1960s. This bigfoot corpse was a graceless fake that was exposed within hours by the clever dicks at the JREF, and was concocted and promoted by a pair of blustering oafs named Rick Dyer and Matt Whitton, who have taken the unfortunate Southern redneck stereotype and amplified it into an embarrassment. It's a rubber suit stuffed with dead animal parts. If I'd seen the photos of this thing at an impressionable age, I would not have been at all impressed — they were pathetic. The most thorough (if rather rambling) account is at a bigfoot site, and it's damning. The creators weren't just con-artists, they were stupid, incompetent con-artists…and people still fell for it. That's the most depressing part of this story. The frauds don't even have to try anymore, and the suckers line up to give them their money.

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29 August 2008 @ 04:38 am
Fermi's First Light  

Fermi's First Light Fermi's First Light


 
 
29 August 2008 @ 04:00 am
Improvised  
Oh, your brother is Luke.  Sorry, should've mentioned that first.
 
 
28 August 2008 @ 10:22 pm
Say happy birthday to Zeno  

His blog is three years old, which as we all know means he has at last emerged from the terrible twos and has reached that period of maximal cuteness. He's a bit disappointed that the California legislature didn't issue an official proclamation, so he'll have to settle for a mere pharyngulation.

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28 August 2008 @ 09:10 pm
A token of my respect for you crafty folk  

Once upon a time, I made some unfortunate remarks about knitting, and I felt like I'd prodded Madame Defarge, which is never a good idea.

But really, I love you guys, and here's a whole page of cephalopod craft patterns to show it.

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28 August 2008 @ 08:33 pm
ChemDraw  
Hello all. I am preparing a presentation, and am trying to copy and paste files from ChemDraw into PowerPoint.

I am using white drawings on a black background. However, for some reason, I cannot get the structures to paste "white" into PowerPoint; they either come out black (and blend in) or another color entirely. I have tried all sorts of tricks, and nothing seems to work. I am running ChemBioDraw 11.0 with Mac OSX Leopard. Has anyone else ever had this problem, and, short of reinstalling the program and/or OS, does anyone have any suggestions?

Many thanks,

M
 
 
28 August 2008 @ 07:45 pm
They're joking, right?  

The pope has condemned this silly sculpture as blasphemous, and German Catholics are trying to get it removed from display.

frog.jpg

They can't be serious, can they? It's kitschy and funny. But really, they're unhappy about this.

The Vatican wrote a letter of support in the pope's name to Franz Pahl, president of the regional government who opposed the sculpture.

"Surely this is not a work of art but a blashphemy and a disgusting piece of trash that upsets many people," Pahl told Reuters by telephone as the museum board was meeting.

The Vatican letter said that the work "wounds the religious sentiments of so many people who see in the cross the symbol of God's love".

Pahl, whose province is heavily Catholic, was so outraged by the sculpture of the pop-eyed amphibian that he went on a hunger strike to demand its removal and had to be taken to hospital during the summer.

So wait…now doing anything with two sticks stuck together at right angles is going to be an affront to "God's love"? I have been told over and over again by pompous wackaloons that I'm on the shock-jock trajectory, compelled to try and top my outrages against religion in an ever-upward spiral of offense, and that it's going to be really hard to top cracker abuse. However, it looks like you can piss off the pope just by playing around with a couple of popsicle sticks.

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28 August 2008 @ 05:03 pm
Assume the cow is a spherical magnet...  
Google Earth and compass herds:
German and Czech biologists have shown that cattle, along with deer, instinctively stand in a north-south direction. They appear to possess a sixth sense of magnetism.

After studying Google Earth satellite images of cattle herds, along with their own observations of roe deer, the researchers realized that the animals routinely stood along a north-south axis.

"The magnetic field is the only common and most likely factor responsible for the observed alignment," write the researchers in a study published today in the Proceedings of the National Academy of Sciences. "Our analysis ... clearly provides the crucial proof in favor of the Earth's magnetic field being the responsive cue."
You know, it's like using iron filings to demonstrate the field around a magnet, except with livestock.
 
 
29 August 2008 @ 09:01 am
emotionally vague survey results  

emotionallyvague.jpg
a collection of mainly graphical results from a research project that focused on revealing how people feel anger, joy, fear, sadness & love. a simple survey asked 250 participants between the ages of 6 & 75 years from 35 different countries to graphically represent these emotions on a set of human silhouettes. the resulting drawings were compiled in layered Photoshop documents. in addition, participants could express emotions textually or choose appropriate colors. the text results were analyzed on frequency, while the color choices determine a DNA-like frequency pattern.

[link: emotionallyvague.com]

see also: personality DNA test & Playboy centerfold averaging & Google Project.

 
 
29 August 2008 @ 08:37 am
2008 presidential election in the blogosphere  

perspctv.jpg
an online information dashboard that summarizes & graphs the Internet activity relating to the 2008 presidential elections, in an attempt to compare the similarities & the disparities between the mainstream media & user-generated content.

perspctv's current graphs include the "CNN national poll of polls", news mentions, blogosphere mentions, Twitter mentions, a US electoral map & Google Trends-based timelines comparing the names of the candidates.

[link: perspctv.com|thnkx toshio]

 
 
28 August 2008 @ 06:00 pm
Ancient Amazon Actually Highly Urbanized  

In 1925 British adventurer Colonel Percy Fawcett disappeared into the wilds of the Amazon, never to be heard from again after going there in search of a lost city he called Z. But decades later, a city of sorts--actually a series of settlements connected by roads--has been found at the headwaters of the Xingu River where Fawcett went missing in an area previously buried beneath the dense foliage in what is now Xingu National Park.

View slideshow here. [More]

 
 
28 August 2008 @ 05:34 pm
All the news that's fit to print  
Basic Accounts
As we noted in our last News post, as of today users will be able to downgrade their account to Basic through the Manage Account page. In addition, visitors who are not logged in to LiveJournal will now be seeing ads on Basic accounts and communities; the experience of logged-in users will not change.

Paid Account Sale
We are having a paid account sale starting today through September 30, 2008. During that period, you can purchase a 12 month block of paid time and receive a 20% discount – this paid time can be added to any account, or purchased as a gift for your favorite LJ-friend. For full details, see our Paid Account Sale page.

Announcing [info]lj_advisory
We are pleased to announce the creation of the [info]lj_advisory community, set up so you can find news and information related to the activities of the Advisory Board. We recognize that it has taken us a while to get this community up and running, and that has caused some frustration. From now on, we will post topics which will be discussed by the Advisory Board prior to the date of the meeting and summaries of meetings after they occur. Throughout the year, the Advisory Board may also post requests for opinions on topics which may be discussed at future meetings. This is the official community for communication with the Advisory Board – comments will be read by Advisory Board members who will respond as they feel appropriate.

RTE + Opera and Safari = <3
RTE stands for Rich Text Editor, which is the default method of posting entries from the Post an Entry page. Our Rich Text Editor is based on the open-source FCKeditor code. It allows you to make links or LiveJournal user tags, insert photos or videos, and format your entries without needing to know HTML. That is, unless you use Opera or Safari as a browser, in which case you couldn't use the RTE.

That will be changing today. We are pleased to announce that the RTE has been upgraded to the latest version of the FCK code, which includes support for Opera and Safari! In addition, many of the bugs in the old version have been fixed. If you've been using RTE, you will most likely need to clear your browser's cache in order to use the new version.

<strike> vs. <b>
Last year we changed the visual display of deleted and suspended usernames from a line through the username to a bold font. This had the effect of making the name unclickable - which meant that no one could easily determine whether the username had been deleted or suspended. We've reversed this display, returning deleted and suspended usernames to a struck-through and clickable state.

Flash Fiction Contest Update
The deadline to submit your flash fiction entry to "Quick Tales," LiveJournal's partnership with Caferati in India is fast approaching. Users who wish to find out more about this exciting contest should take a look at our [info]india_writing community. Be quick! Entries must be received by midnight, September 7th, 2008 and the contest is open to all who have a mailing address in India, regardless of where they currently reside or citizenship.
 
 
Current Mood: quixotic
 
 
28 August 2008 @ 02:44 pm
Google Maps: D'oh!  

These stupid driving directions don't mention any reef!

Thanks to thePGJ! Original is here!
 
 
29 August 2008 @ 07:39 am
Education vs Research  
Hey!
First time posting here, so allow me to introduce myself. I just graduated from William and Mary in May 2008, and now I'm teaching English for a year in Japan as a way to get my sanity back.

After this year I want to go back to school in either Education (in order to become a secondary school teacher) or Science (in order to do research). I'm having trouble deciding which though, since teaching is awesome but I'm afraid I'd miss academic challenge too much. Clearly I'd have other challenges in education, but I think they would be different sorts of challenges. I can think of pros and cons of both fields.

Has anyone else faced this decision? I'd like to hear your stories.

Cheers!

EDIT: Here's some more info to help you help me :)

My main interests lie in conservation biology and ecology.

Within those areas, I like aquatic ecology (bioindicators, amphibians, nutrient dynamics), restoration ecology (succession, damage control, mitigation), and population ecology (speciation, surveying what lives where).

I know my interests are still sort of broad for someone looking into masters programs, but most of those things go hand-in-hand.

I suppose it would be good to post my pros and cons, too:

Education:
Pros:
-I love teaching
-the holidays and hours are more reasonable
-directly influencing people is very rewarding for me
Cons:
-Sometimes teaching can be frustrating
-bureaucracy
-maybe (not sure yet) doing the same thing year in and year out could get boring

Academia:
Pros:
-I would still have some opportunity to teach
-I would get to do many different things throughout my career
-I could make a real difference in the world
-I would have more freedom on what I taught (maybe?)
Cons:
-Balancing teaching, research and writing may be difficult
-it may be harder to find a job
-I'd go to school for much longer (and it would cost more)
-I may not have as much time for a family as I'd want
-depending on where I worked, bureaucracy could still be a problem

Perhaps there are more things that I'm not considering, or some concerns or supposed benefits are more or less imagined on my part. Please let me know your opinions!

Thanks again!
 
 
28 August 2008 @ 11:26 am
Release #37  
Release #37 is released.

This release will also be discussed in [info]news. Please use this thread only for technical or functional aspects of the release.

Notable changes:
  1. The RTE editor has been greatly improved, and is now using the latest (2.6.3) version of FCKEditor. This means that modern versions of Firefox, IE, Opera, and Safari should all work. Please comment with any problems that you find. Please clear your cache before trying this feature as it might not properly detect updated javascript files.
  2. Basic accounts are back, as discussed in lj_2008 and news in recent weeks. Logged-out visitors will now see ads on Basic journals but the experience for logged in users will not change.
  3. We're bringing strikethrough back. Last year we changed the visual display of deleted and suspended usernames from a hyperlink with a line through the name to a non-hyperlinked bold font representation. We've reverted this change, returning deleted and suspended usernames to a struck-through and clickable state.
  4. New comment subscriptions are no longer displaying empty comment strings.
  5. LJ names with leading or trailing underscores are no longer automatically eligible to rename their account for free. In these cases, a support request is now required in order to request a free rename.
 
 
28 August 2008 @ 04:59 pm
Pop-sci book meme  

Jennifer Oullette has put together a pop-sci book meme (and John Lynch has joined in). It's the usual thing, a long list of books and you're supposed to highlight the ones you've read, this time with the theme being that they're all about science somehow. I detect a physics bias in Ms. Oullette's choices, however, despite the excellent beginning — and it's to that I ascribe my poor performance. That and some weird choices: since when is Neuromancer pop-sci? Stephenson's Baroque Cycle or Cryptonomicon or Snowcrash would be better choices if we're going to throw fiction in the mix, or Sterling's Schismatrix. If we open the door to SF, though, the howling hordes will pour in and we'll never get anything done.

Anyway, here's my copy of the list:

  1. Micrographia, Robert Hooke
  2. The Origin of the Species, Charles Darwin
  3. Never at Rest, Richard Westfall
  4. Surely You're Joking, Mr. Feynman, Richard Feynman
  5. Tesla: Man Out of Time, Margaret Cheney
  6. The Devil's Doctor, Philip Ball
  7. The Making of the Atomic Bomb, Richard Rhodes
  8. Lonely Hearts of the Cosmos, Dennis Overbye
  9. Physics for Entertainment, Yakov Perelman
  10. 1-2-3 Infinity, George Gamow
  11. The Elegant Universe, Brian Greene
  12. Warmth Disperses, Time Passes, Hans Christian von Bayer
  13. Alice in Quantumland, Robert Gilmore
  14. Where Does the Weirdness Go? David Lindley
  15. A Short History of Nearly Everything, Bill Bryson
  16. A Force of Nature, Richard Rhodes
  17. Black Holes and Time Warps, Kip Thorne
  18. A Brief History of Time, Stephen Hawking
  19. Universal Foam, Sidney Perkowitz
  20. Vermeer's Camera, Philip Steadman
  21. The Code Book, Simon Singh
  22. The Elements of Murder, John Emsley
  23. Soul Made Flesh, Carl Zimmer
  24. Time's Arrow, Martin Amis
  25. The Ten Most Beautiful Experiments, George Johnson
  26. Einstein's Dreams, Alan Lightman
  27. Godel, Escher, Bach, Douglas Hofstadter
  28. The Curious Life of Robert Hooke, Lisa Jardine
  29. A Matter of Degrees, Gino Segre
  30. The Physics of Star Trek, Lawrence Krauss
  31. E=mc2, David Bodanis
  32. Zero: The Biography of a Dangerous Idea, Charles Seife
  33. Absolute Zero: The Conquest of Cold, Tom Shachtman
  34. A Madman Dreams of Turing Machines, Janna Levin
  35. Warped Passages, Lisa Randall
  36. Apollo's Fire, Michael Sims
  37. Flatland, Edward Abbott
  38. Fermat's Last Theorem, Amir Aczel
  39. Stiff, Mary Roach
  40. Astroturf, M.G. Lord
  41. The Periodic Table, Primo Levi
  42. Longitude, Dava Sobel
  43. The First Three Minutes, Steven Weinberg
  44. The Mummy Congress, Heather Pringle
  45. The Accelerating Universe, Mario Livio
  46. Math and the Mona Lisa, Bulent Atalay
  47. This is Your Brain on Music, Daniel Levitin
  48. The Executioner's Current, Richard Moran
  49. Krakatoa, Simon Winchester
  50. Pythagorus' Trousers, Margaret Wertheim
  51. Neuromancer, William Gibson
  52. The Physics of Superheroes, James Kakalios
  53. The Strange Case of the Broad Street Pump, Sandra Hempel
  54. Another Day in the Frontal Lobe, Katrina Firlik
  55. Einstein's Clocks and Poincare's Maps, Peter Galison
  56. The Demon-Haunted World, Carl Sagan
  57. The Blind Watchmaker, Richard Dawkins
  58. The Language Instinct, Steven Pinker
  59. An Instance of the Fingerpost, Iain Pears
  60. Consilience, E.O. Wilson
  61. Wonderful Life, Stephen J. Gould
  62. Teaching a Stone to Talk, Annie Dillard
  63. Fire in the Brain, Ronald K. Siegel
  64. The Life of a Cell, Lewis Thomas
  65. Coming of Age in the Milky Way, Timothy Ferris
  66. Storm World, Chris Mooney
  67. The Carbon Age, Eric Roston
  68. The Black Hole Wars, Leonard Susskind
  69. Copenhagen, Michael Frayn
  70. From the Earth to the Moon, Jules Verne
  71. Gut Symmetries, Jeanette Winterson
  72. Chaos, James Gleick
  73. Innumeracy, John Allen Paulos
  74. The Physics of NASCAR, Diandra Leslie-Pelecky
  75. Subtle is the Lord, Abraham Pais

Jennifer did suggest that we make additions, so let's beef up the biology a bit with a few more off the top of my head (OK, McPhee and Rudwick are geology…but that needs bolstering, too!).

  1. Ascent of Man, Jacob Bronowski
  2. Basin and Range, John McPhee
  3. Beak of the Finch, Jonathan Weiner
  4. Chance and Necessity, Jacques Monod
  5. Dr. Tatiana's Sex Advice to All Creation, Olivia Judson
  6. Endless Forms Most Beautiful, Sean Carroll
  7. Evolution: The Triumph of an Idea, Carl Zimmer
  8. Genome, Matt Ridley
  9. Guns, Germs, and Steel, Jared Diamond
  10. It Ain't Necessarily So, Richard Lewontin
  11. On Growth and Form, D'Arcy Wentworth Thompson
  12. Phantoms in the Brain, VS Ramachandran
  13. The Ancestor's Tale, Richard Dawkins
  14. The Case of the Female Orgasm: Bias in the Science of Evolution, Elisabeth Lloyd
  15. The Eighth Day of Creation, Horace Freeland Judson
  16. The Great Devonian Controversy, Martin Rudwick
  17. The Man Who Mistook His Wife For A Hat, Oliver Sacks
  18. The Mismeasure of Man, Stephen Jay Gould
  19. The Triple Helix: Gene, Organism, and Environment, Richard Lewontin
  20. Time, Love, Memory, Jonathan Weiner
  21. Voyaging and The Power of Place, Janet Browne
  22. Woman: An Intimate Geography, Natalie Angier
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28 August 2008 @ 02:06 pm
Education  
Tags:
 
 
28 August 2008 @ 07:37 pm
Can L^p be the same as L^q?  

A fairly standard question that students are asked after a course in real analysis (involving Lebesgue integration) is to show that there is no inclusion between Lp spaces on R with respect to Lebesgue measure. This is usually done (sometimes by hinting or prompting) by considering for which values of α and p the functions

x\mapsto x^{\alpha}

are in Lp (after truncating either for |x|<1 or for |x|>1, to avoid divergences).

Once I was present as observer at an oral examination for such a course, and the professor in charge had raised this question more or less by asking

Is it possible that Lp is the same as Lq, if p is not equal to q?

where the meaning was clearly, implicitly, the one above; and I wondered (aloud) if the answer was the same in a more abstract way: is it possible that Lp(X,μ) be isomorphic to Lq(X,μ) if p is different from q? This is a question that makes sense for general measure spaces, of course, and one where one must be careful to specify what “isomorphic” is taken to mean. In the algebraic sense, this is a question of cardinality only, and doesn’t seem very interesting, but isomorphism as topological vector spaces seems much more natural. Note that the answer is not immediately clear for the classical Lebesgue spaces over R: even if there is no inclusion, there might exist some clever linear renormalization map that sends (for instance) a square-integrable function bijectively — and continuously — to an integrable one.

But still, the answer is (not surprisingly) “No”, provided the only obvious reservation is made: if Lp and Lq are finite dimensional, then they are isomorphic as topological vector spaces, as is well known (they are not necessarily isometric, of course). But otherwise, we have

Theorem. Let (X,μ) be a measure space, and let p and q be real numbers at least 1 such that Lp(X,μ) has infinite dimension. Then Lp(X,μ) and Lq(X,μ) are isomorphic, as topological vector spaces, if and only if p=q.

I think this goes back to Banach, at least for the classical spaces of functions on R (if I understand correctly Chapter XII of his book Théorie des opérations linéaires). For the general case, although I didn’t find a reference, this must be well-known since it is a direct consequence of the computation of the type and cotype invariants of such Banach spaces. (The only reason I actually had the idea to look at these is that I was browsing pleasurably into the nice book of Li and Queffélec on the geometry of Banach spaces, where type and cotype are described in detail; this is overall very far from what I can claim any expertise to…)

Indeed, for an infinite dimensional Banach space of the form Lp(X,μ), it is known that

type(L^p(X,\mu))=\min(2,p),\ \ \ \ \ \ cotype(L^p(X,\mu))=\max(2,p)

where the (best) type (denoted type(E)) of a Banach space E is defined to be the largest real number p such that

\int_0^1{||\sum_{j=1}^n{r_j(t)x(j)}||dt}\leq M\left(\sum_{j=1}^n{||x(j)||^p}\right)^{1/p}

for any n>1, any finite sequence of vectors x(j) in E, and some constant M>0 (independent of n), where

r_j(t)=\mathrm{sign}\sin 2^j\pi t

denotes the sequence of Rademacher functions. Dually, the cotype is the smallest real number q such that

\int_0^1{||\sum_{j=1}^n{r_j(t)x(j)}||dt}\geq m\left(\sum_{j=1}^n{||x(j)||^q}\right)^{1/q}

for some constant m>0. The results above on the type and cotype of Lp spaces are explained in Section III.3 of the book of Li and Queffélec.

These definitions show that the type and cotype are preserved under continuous linear isomorphisms, so if we have infinite-dimensional spaces Lp(X,μ) and Lq(X,μ) which are isomorphic, their types and cotypes must coincide, i.e., we must have

\min(2,p)=\min(2,q),\ \ \ and\ \ \ \max(2,p)=\max(2,q),

which means p=q.