image from birdsource.org
Thursday, February 12, 2009
birdsday gets counting
This weekend is the Great Backyard Bird Hunt. Count birds in your own backyard (or, for New Yorkers, the alley visible from your apartment window) from February 12-16, and submit your results here.
image from birdsource.org
image from birdsource.org
Thursday, February 5, 2009
birdsday chocolatey goodness
For birdsday today we bring you glad tidings of chocolate penguins. Or one chocolate penguin, as presented (and given to me) by An Xiao. Penguins are birds after all!
Important facts about penguins:
In their avian form, penguins smell very bad.
In their chocolate form, penguins taste very good.
Important facts about penguins:
In their avian form, penguins smell very bad.
In their chocolate form, penguins taste very good.
Thursday, January 29, 2009
Wednesday, January 28, 2009
ofessionalpray ournalismjay
A light article in the NYT includes an unexpected word.
Goodness - the Grey Lady is using pig latin! Perhaps it helps capture the tone of the story, the ebbing of rigid expectations amidst economic spiral. But, still, definitely a surprise.
THE earth held firm in its orbit. The continents did not founder. Martial law was not imposed. This, despite the fact that the “21” Club has loosened its tie for the first time since it opened at 21 West 52d Street 79 years ago.
...
Actually, “21” instituted the policy “after Labor Day, a soft opening if you will,” said Bryan McGuire, the manager for the last, yes, 21 years. “We wanted to be on a more level playing field with our competitors,” he said, adding, “We didn’t think it was that big a deal.” Especially since, during lunch, the tie policy was ixnayed in 1996, he said.
Goodness - the Grey Lady is using pig latin! Perhaps it helps capture the tone of the story, the ebbing of rigid expectations amidst economic spiral. But, still, definitely a surprise.
Thursday, January 22, 2009
Bidengaffe Watch, Day One
Days in office: 1
Joe Biden gaffes: 1
Watch Obama's face, then his right arm. "No, Joe, none of that. We have work to do!"
Joe Biden gaffes: 1
Watch Obama's face, then his right arm. "No, Joe, none of that. We have work to do!"
Introducing Birdsday
Surely you know about Caturday (although some sects honor the holiday a day later).
Cats are wonderful in all sorts of ways, but what about birds? Birds deserve a day of blogospheric adoration too! So begins a new weekly feature - Birdsday.
This week I'll start to gently ween you from cats. But next week - birds alone!
Cats are wonderful in all sorts of ways, but what about birds? Birds deserve a day of blogospheric adoration too! So begins a new weekly feature - Birdsday.
This week I'll start to gently ween you from cats. But next week - birds alone!
Wednesday, January 21, 2009
the world revolves around you
I've been thinking about geocentric cosmology today.
Nowadays we all know that the Ptolemaic/Aristotelian model of the universe is silly. The earth (and the other planets) go around the sun. Copernicus was so awesome not because he discovered something truly profound, but because he (and Brahe and Galileo) provided the arguments and data that eventually forced a bunch of stupid reactionary authorities to stop setting fire to astronomers and to start acknowledging really obvious facts. What kind of moron would put the dinky little earth at the center of the universe?
But pretend you've never been taught anything about astronomy. Go outside and look at the moon and the sun and the stars for a couple days. Go ahead - I'll wait.
Okay, notice anything? The sun and the moon and the stars move. They move, and the earth doesn't move. You can tell it's not moving, because very rarely you do feel the earth move, especially in southern California. But most of the time you don't feel any earth movement. So all those things up in the sky move, and they somehow disappear over one horizon and then reappear over the other horizon later on.
Now, if you're really gullible and superstitious, you might think that the sun and whatnot do something magical, like teleporting back to where they started, or they die and are reborn every day. Or whatever. But, no, we're being scientific. So here's an experiment: get your friend to run around you in a circle while you keep your head still. Notice that she disappears at one side of your visual field but reappears at the other side... because... she's moving in an orbit while you observe from a stationary position! That's it - the sun and moon and stars go in a circle around the earth! This is scientific progress!
Hang on though, some friendless little nerd has an objection. Try a different experiment, he says: have your friend stay stationary, while you run around her in a circle. And while you are running, spin around, so that your back is sometimes toward your friend and your front is sometimes toward your friend. Notice that your friend disappears on one side of your visual field, and reappears on the other. But you are moving, not your friend. Couldn't the earth's relation to the sun or moon be like that? Couldn't the earth be moving?
What a lame idea! Why would I want to spin while running around my friend? I'd trip and hurt myself! And why would the earth - which certainly doesn't feel like it's spinning to me! - do something so stupid? This is a needlessly complicated theory, when good old common sense tells us that the earth is holding still. This idea is obviously the sort of babble you get from crazy people, or troublemakers.
Galileo before the Holy Office, Joseph-Nicolas Robert-Fleury (via wikicommons)
Here's my point: geocentric cosmology was not an obviously false and stupid dogmatic position. It was, in fact, a scientific improvement upon earlier theories of planetary motion. And it was incredibly satisfying on an intuitive level. Copernicus and his friends were only able to overturn the view by providing a tight explanatory framework, and an increasingly demanding amount of data that finally overwhelmed extant accounts. Geocentric cosmology is the simplest explanatory theory when you're idly watching the stars one night, but it stops being simplest when you look at hundreds of nights' observations of all the celestial bodies. Which is to say - heliocentric theory is the best theory, but not at an intuitive level.
Except it certainly feels intuitive to us now. Of course the earth goes round the sun! But it only feels this way because we were raised on colorful planetarium displays. We were taught a heliocentric cosmology before we were able to develop an independent intuitive sense of the universe. That's why it now seems so obvious that Copernicus was right and the prevailing authorities were idiots. But they did not have the benefit of building a diorama of the solar system in elementary school.
So I wonder, now, which contemporary ridiculous and counter-intuitive views will be utterly obvious in the future. For what lapse of scientific common sense will our distant ancestors mock us? And who among our lunatic fringe will someday be a hero of rational progress? Just how much will we come to resemble the Inquisition berating Galileo? We are, after all, still plenty arrogant, even if we're no longer the center of the universe.
top image: Min Su Yun
Nowadays we all know that the Ptolemaic/Aristotelian model of the universe is silly. The earth (and the other planets) go around the sun. Copernicus was so awesome not because he discovered something truly profound, but because he (and Brahe and Galileo) provided the arguments and data that eventually forced a bunch of stupid reactionary authorities to stop setting fire to astronomers and to start acknowledging really obvious facts. What kind of moron would put the dinky little earth at the center of the universe?But pretend you've never been taught anything about astronomy. Go outside and look at the moon and the sun and the stars for a couple days. Go ahead - I'll wait.
Okay, notice anything? The sun and the moon and the stars move. They move, and the earth doesn't move. You can tell it's not moving, because very rarely you do feel the earth move, especially in southern California. But most of the time you don't feel any earth movement. So all those things up in the sky move, and they somehow disappear over one horizon and then reappear over the other horizon later on.
Now, if you're really gullible and superstitious, you might think that the sun and whatnot do something magical, like teleporting back to where they started, or they die and are reborn every day. Or whatever. But, no, we're being scientific. So here's an experiment: get your friend to run around you in a circle while you keep your head still. Notice that she disappears at one side of your visual field but reappears at the other side... because... she's moving in an orbit while you observe from a stationary position! That's it - the sun and moon and stars go in a circle around the earth! This is scientific progress!
Hang on though, some friendless little nerd has an objection. Try a different experiment, he says: have your friend stay stationary, while you run around her in a circle. And while you are running, spin around, so that your back is sometimes toward your friend and your front is sometimes toward your friend. Notice that your friend disappears on one side of your visual field, and reappears on the other. But you are moving, not your friend. Couldn't the earth's relation to the sun or moon be like that? Couldn't the earth be moving?
What a lame idea! Why would I want to spin while running around my friend? I'd trip and hurt myself! And why would the earth - which certainly doesn't feel like it's spinning to me! - do something so stupid? This is a needlessly complicated theory, when good old common sense tells us that the earth is holding still. This idea is obviously the sort of babble you get from crazy people, or troublemakers.
Galileo before the Holy Office, Joseph-Nicolas Robert-Fleury (via wikicommons)
Here's my point: geocentric cosmology was not an obviously false and stupid dogmatic position. It was, in fact, a scientific improvement upon earlier theories of planetary motion. And it was incredibly satisfying on an intuitive level. Copernicus and his friends were only able to overturn the view by providing a tight explanatory framework, and an increasingly demanding amount of data that finally overwhelmed extant accounts. Geocentric cosmology is the simplest explanatory theory when you're idly watching the stars one night, but it stops being simplest when you look at hundreds of nights' observations of all the celestial bodies. Which is to say - heliocentric theory is the best theory, but not at an intuitive level.
Except it certainly feels intuitive to us now. Of course the earth goes round the sun! But it only feels this way because we were raised on colorful planetarium displays. We were taught a heliocentric cosmology before we were able to develop an independent intuitive sense of the universe. That's why it now seems so obvious that Copernicus was right and the prevailing authorities were idiots. But they did not have the benefit of building a diorama of the solar system in elementary school.
So I wonder, now, which contemporary ridiculous and counter-intuitive views will be utterly obvious in the future. For what lapse of scientific common sense will our distant ancestors mock us? And who among our lunatic fringe will someday be a hero of rational progress? Just how much will we come to resemble the Inquisition berating Galileo? We are, after all, still plenty arrogant, even if we're no longer the center of the universe.
top image: Min Su Yun
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