Tài liệu What if randall munroe

what if? Serious Scientific Answers to Absurd Hypothetical Questions RANDALL MUNROE HOUGHTON MIFFLIN HARCOURT 2014 • BOSTON • NEW YORK Copyright © 2014 by xkcd Inc. ALL RIGHTS RESERVED For information about permission to reproduce selections from this book, write to Permissions, Houghton Mifflin Harcourt Publishing Company, 215 Park Avenue South, New York, New York 10003. www.hmhco.com The Library of Congress has cataloged the print edition as follows: Munroe, Randall, author. What if? : serious scientific answers to absurd hypothetical questions / Randall Munroe. pages cm ISBN 978-0-544-27299-6 (hardback) ISBN 978-0-544-45686-0 (international pbk.) 1. Science—Miscellanea. I. Title. Q173.M965 2014 500—dc23 2014016311 Book design by Christina Gleason Lyrics from “If I Didn’t Have You” © 2011 by Tim Minchin. Reprinted by permission of Tim Minchin. eISBN 978-0-544-27264-4 V1.0914 QUESTIONS Disclaimer [>] Introduction [>] Global Windstorm [>] Relativistic Baseball [>] Spent Fuel Pool [>] Weird (and Worrying) Questions from the What If? Inbox, #1 [>] New York–Style Time Machine [>] Soul Mates [>] Laser Pointer [>] Periodic Wall of the Elements [>] Everybody Jump [>] A Mole of Moles [>] Hair Dryer [>] Weird (and Worrying) Questions from the What If? Inbox, #2 [>] The Last Human Light [>] Machine-Gun Jetpack [>] Rising Steadily [>] Weird (and Worrying) Questions from the What If? Inbox, #3 [>] Orbital Submarine [>] Short-Answer Section [>] Lightning [>] Weird (and Worrying) Questions from the What If? Inbox, #4 [>] Human Computer [>] Little Planet [>] Steak Drop [>] Hockey Puck [>] Common Cold [>] Glass Half Empty [>] Weird (and Worrying) Questions from the What If? Inbox, #5 [>] Alien Astronomers [>] No More DNA [>] Interplanetary Cessna [>] Weird (and Worrying) Questions from the What If? Inbox, #6 [>] Yoda [>] Flyover States [>] Falling with Helium [>] Everybody Out [>] Weird (and Worrying) Questions from the What If? Inbox, #7 [>] Self-Fertilization [>] High Throw [>] Lethal Neutrinos [>] Weird (and Worrying) Questions from the What If? Inbox, #8 [>] Speed Bump [>] Lost Immortals [>] Orbital Speed [>] FedEx Bandwidth [>] Free Fall [>] Weird (and Worrying) Questions from the What If? Inbox, #9 [>] Sparta [>] Drain the Oceans [>] Drain the Oceans: Part II [>] Twitter [>] Lego Bridge [>] Longest Sunset [>] Random Sneeze Call [>] Weird (and Worrying) Questions from the What If? Inbox, #10 [>] Expanding Earth [>] Weightless Arrow [>] Sunless Earth [>] Updating a Printed Wikipedia [>] Facebook of the Dead [>]