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Authors: Natalie Angier

The Canon

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The Canon
A Whirligig Tour of the Beautiful Basics of Science
Natalie Angier

A MARINER BOOK
HOUGHTON MIFFLIN COMPANY
Boston • New York

First Mariner Books edition 2008
Copyright © 2007 by Natalie Angier
All rights reserved

For information about permission to reproduce
selections from this book, write to Permissions,
Houghton Mifflin Company, 215 Park Avenue South,
New York, New York 10003.

www.houghtonmifflinbooks.com

Library of Congress Cataloging-in-Publication Data
Angier, Natalie.
The canon : a whirligig tour of the beautiful basics
of science / Natalie Angier.
p. cm.
Includes bibliographical references and index.
ISBN
978-0-618-24295-5
ISBN
978-0-547-05346-2 (pbk.)
1. Science—Popular works. 1. Title.
Q162.
A
59 2007
500—dc22 2006026871

Printed in the United States of America

Book design by Robert Overholtzer

VB
10 9 8 7 6 5 4 3 2 1

F
OR
R
ICK
,

my one in 6.5 × 109
9

Contents

Introduction: Sisyphus Sings with a Ying 1

1. Thinking Scientifically: An Out-of-Body Experience 18

2. Probabilities: For Whom the Bell Curves 47

3. Calibration: Playing with Scales 71

4. Physics: And Nothing's Plenty for Me 87

5. Chemistry: Fire, Ice, Spies, and Life 121

6. Evolutionary Biology: The Theory of Every Body 147

7. Molecular Biology: Cells and Whistles 183

8. Geology: Imagining World Pieces 212

9. Astronomy: Heavenly Creatures 235

REFERENCES
267

ACKNOWLEDGMENTS
280

INDEX
282

Introduction
Sisyphus Sings with a Ying

W
HEN THE SECOND
of her two children turned thirteen, my sister decided that it finally was time to let their membership lapse in two familiar family haunts: the science museum and the zoo. These were kiddie places, she told me. Her children now had more mature tastes. They liked refined forms of entertainment—art museums, the theater, ballet. Isn't that something? My sister's children's bodies were lengthening, and so were their attention spans. They could sit for hours at a performance of
Macbeth
without so much as checking the seat bottom for fossilized wads of gum. No more of this mad pinball pinging from one hands-on science exhibit to the next, pounding on knobs to make artificial earthquakes, or cranking gears to see Newton's laws in motion, or something like that; who bothers to read the explanatory placards anyway? And, oops, hmm, hey, Mom, this thing seems to have stopped working! No more aping the gorillas or arguing over the structural basis of a polar bear's white coat or wondering about the weird goatee of drool gathering on the dromedary's chin. Sigh. How winged are the slippers of time, how immutably forward point their dainty steel-tipped toe boxes. And how common is this middle-class rite of passage into adulthood: from mangabeys to Modigliani,
T. rex
to
Oedipus Rex.

The differential acoustics tell the story. Zoos and museums of science and natural history are loud and bouncy and notably enriched with the upper registers of the audio scale. Theaters and art museums murmur in a courteous baritone, and if your cell phone should bleat out a little Beethoven chime during a performance, and especially should you be so barbaric as to answer it, other members of the audience have been
instructed to garrote you with a rolled-up
Playbill.
Science appreciation is for the young, the restless, the Ritalined. It's the holding-pattern fun you have while your gonads are busy ripening, and the day that an exhibit of Matisse vs. Picasso in Paris exerts greater pull than an Omnimax movie about spiders is the debutante's ball for your brain. Here I am! Come and get me! And don't forget your Proust!

Naturally enough, I used the occasion of my sister's revelation about lapsing memberships to scold her. Whaddya talking about, giving up on science just because your kids have pubesced? Are you saying that's it for learning about nature? They know everything they need to know about the universe, the cell, the atom, electromagnetism, geodes, trilobites, chromosomes, and Foucault pendulums, which even Stephen Jay Gould once told me he had trouble understanding? How about those shrewdly coquettish optical illusions that will let you see either a vase or two faces in profile, but never, ever two faces
and
a vase, no matter how hard you concentrate or relax or dart your eyes or squint like Humphrey Bogart or command your perceptual field to stop being so archaically serial and instead learn to multitask? Are your kids really ready to leave these great cosmic challenges and mysteries behind? I demanded. Are
you?

My voice hit a shrill note, as it does when I'm being self-righteous, and my sister is used to this and replied with her usual shrug of common sense. The membership is expensive, she said, her kids study plenty of science in school, and one of them has talked of becoming a marine biologist. As for her own needs, my sister said, there's always PBS. Why was I taking this so personally?

Because I'm awake, I muttered. Give me a chance, and I'll take the jet stream personally.

My bristletail notwithstanding, I couldn't fault my sister for deciding to sever one of the few connections she had to the domain of human affairs designated Science. Good though the Oregon Museum of Science and Industry may be, it is undeniably geared toward visitors young enough to appreciate such offerings as the wildly popular "Grossology" show, a tour through the wacky world of bodily fluids and functions.

Childhood, then, is the one time of life when all members of an age cohort are expected to appreciate science. Once junior high school begins, so too does the great winnowing, the relentless tweezing away of feather, fur, fun, the hilarity of the digestive tract, until science becomes the forbidding province of a small priesthood—and a poorly dressed one at that. A delight in "Grossology" gives way to a dread of
grossness. In this country, adolescent science lovers tend to be fewer in number than they are in tedious nicknames: they are geeks, nerds, eggheads, pointy-heads, brainiacs, lab rats, the recently coined aspies (for Asperger's syndrome); and, hell, why not "peeps" (pocket protectors) or "dogs" (duct tape on glasses) or "losers" (last ones selected for every sport)? Nonscience teenagers, on the other hand, are known as "teenagers," except among themselves, in which case, regardless of gender, they go by an elaboration on "guys"—as in "you guys," "hey, guys" or "hey, you guys." The you-guys generally have no trouble distinguishing themselves from geeks bearing beakers; but should any questions arise, a teenager will hasten to assert his or her unequivocal guyness, as I learned while walking behind two girls recently who looked to be about sixteen years old.

Girl A asked Girl B what her mother did for a living.

"Oh, she works in Bethesda, at the NIH," said Girl B, referring to the National Institutes of Health. "She's a scientist."

"Huh," said Girl A. I waited for her to add something like "Wow, that's awesome!" or "Sweet!" or "Kewl!" or "Schnitzel with noodles!" and maybe ask what sort of science this extraordinary mother studied. Instead, after a moment or two, Girl A said, "I hate science."

"Yeah, well, you can't, like, pick your parents," said Girl B, giving her beige hair a quick, contemptuous flip. "Anyway, what are you guys doing this weekend?"

As youth flowers into maturity, the barrier between nerd and herd grows taller and thicker and begins to sprout thorns. Soon it seems nearly unbreachable. When my hairstylist told me he was planning to visit Puerto Rico, where I'd been the previous summer, and I recommended that he visit the Arecibo radio telescope on the northwestern side of the island, he looked at me as though I'd suggested he stop by a manufacturer of laundry detergent. "Why on earth would I want to do
that?
" he asked.

"Because it's one of the biggest telescopes in the world, it's open to the public, and it's beautiful and fascinating and looks like a giant mirrored candy dish from the 1960s lodged in the side of a cliff?" I said.

"Huh," he said, taking a rather large snip of hair from my bangs.

"Because it has a great science museum to go with it, and you'll learn a lot about the cosmos?"

"I'm not one of those techie types, you know," he said. Snip snip snip snip snip.

"Because it was featured in the movie
Contact,
with Jodie Foster?" I groped frantically.

The steel piranhas could not be stilled. "I've never been a big Jodie Foster fan," he said. "But I'll take it under advisement."

"Hi, honey!" my husband said when I got home. "Where did you put your hair?"

In truth, I pull it out myself just fine, all the time. How could it be otherwise? I am a science writer. I've been one for decades, for my entire career, and I admit it: I love science. I started loving it in childhood, during trips to the American Museum of Natural History, and then I temporarily misplaced that love when I went to a tiny high school in New Buffalo, Michigan, where the faculty was so strapped for money that one person was expected to teach biology, chemistry, and history before dashing off for his real job as the football coach. The overstretched fellow never lost his sense of humor, though. One morning, as I approached his desk to present him with my biology project, a collection of some two dozen insects pinned to cardboard, I noticed that the praying mantis, the scarab beetle, and the hawk moth were not quite dead, were in fact wriggling around desperately on their stakes. I screamed a girlish stream of obscenities and dropped the whole thing on the floor. My teacher grinned at me, his eyes merrily bug-eyed, and said he couldn't
wait
until it was time for me to dissect the baby pig.

In college I rediscovered my old flame, science, and it was still blazing Bunsen burner blue. I took many science courses, even as I continued to think of myself primarily as a writer, and even as my fellow writers wondered why I bothered with all the physics, calculus, computers, astronomy, and paleontology. I wondered myself, for I was hardly a natural in the laboratory. I studied, I hammered, I nattered, I plucked out my hairs, but I kept at it.

"Well, aren't you a little C. P. Snow White and the Two Cultures," said a friend. "What's your point with these intellectual hybridization experiments, anyway?"

"I don't know," I said. "I like science. I trust it. It makes me feel optimistic. It adds rigor to my life."

He asked why I didn't just become a scientist. I told him I didn't want to ruin a beautiful affair by getting married. Besides, I wouldn't be a very good scientist, and I knew it.

So you'll be a professional dilettante, he said.

Close enough. I became a science writer.

So now, at last, I come to the muscle of the matter, or is it the gristle, or the wishbone, the skin and pope's nose? I have been a science writer
for a quarter of a century, and I love science, but I have also learned and learned and not forgotten but have nevertheless been forced to relearn just how unintegrated science is into the rest of human affairs, how stubbornly apart from the world it remains, and how persistent is the image of the rare nerd, the idea that an appreciation of science is something to be outgrown by all but those with, oddly enough, overgrown brains. Here is a line I have heard many times through the years, whenever I've mentioned to somebody what I do for a living: "Science writing? I haven't followed science since I flunked high school chemistry." (Or, a close second, "...since I flunked high school physics.") Jacqueline Barton, a chemistry professor at the California Institute of Technology, has also heard these lines, and she has expressed her wry amusement at the staggering numbers of people who, by their own account, were not merely mediocre chemistry students, but undiluted failures. Even years of grade inflation cannot dislodge the F as the modal grade in the nation's chemistry consciousness.

Science writing, too, has remained a kind of literary and journalistic ghetto, set apart either physically, as it is in the weekly science section of the
New York Times,
or situationally, as it is by being ignored in most places, most of the time, no matter how high the brow. Ignored by
Harper's,
ignored by the
Atlantic,
ignored by, yes,
The New Yorker,
ignored by the upscale cyberzines like
Salon
despite the presumably parageek nature of their audience. I've seen reader surveys showing that, of all the weekly pull-out sections in the
New York Times,
the most popular is "Science Times," which runs on Tuesdays. Yet I also know, because I have been told by kindhearted friends and relations, that many people discard the whole section up front and unthumbed. Some of those preemptive ejectors even work for the
New York Times.
Several years ago, when the woman who was then the science editor of the
New York Times
asked the man who was then the chief editor of the entire paper to please, please, give the science staff some words of appreciation for all their good work, the chief editor sent a memo assuring the staff how much he looked forward to "Science Times" ...every Wednesday. When I first started writing for the newspaper, and I introduced myself as a science reporter to the columnist William Safire, he said, "So I would be likely to read you on Thursdays, right?" Harold Varmus, a Nobel laureate, told me I should have replied, "Sure, Bill, if you read the paper forty-eight hours late."

Oy, it hurts! How could it not? Nobody wants to feel irrelevant or marginal. Nobody wants to feel that she's failed, unless she's in a high school chemistry class, in which case everybody does. Yet I'll admit it. I
feel that I've failed any time I hear somebody say, Who cares, or Who knows, or I just don't get it. When a character on the otherwise richly drawn HBO series
Six Feet Under
announces that she's planning to take a course in "biogenetics" and her boyfriend replies, Bo-o-ring. Why on earth are you doing that? I take it personally. Wait a minute! Hasn't the guy heard that we're living in the Golden Age of Biology? Would he have found Periclean Athens bo-o-ring too? When my father-in-law finishes reading something I've written about genes and cancer cells and says he found it fascinating but then asks me, "Which is bigger, a gene or a cell?" I think, Uh-oh, I really blew it. If I didn't make clear the basic biofact that while cells are certainly very small, each one is big enough to hold the entire complement of our 25,000 or so genes—as well as abundant bundles of tagalong genetic sequences, the function of which remains unknown—then what good am I? And when a copy editor, in the course of going over a story I've written about whale genetics, asks me to confirm the suggestions in my text that (a) whales are mammals and (b) mammals are animals, I think, Uh-oh, but this time in bold, twenty-six-point, panic-stricken type. Woe, woe, nobody knows anything about science. Woe, woe, nobody cares.

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