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Did NASA really spend millions creating a pen that would write in space? Is chocolate poisonous to dogs? Does stress cause gray hair? These questions are a sample of the urban lore investigated in this eBook, Fact or Fiction: Science Tackles 58 Popular Myths. Drawing from Scientific American's "Fact or Fiction" and "Strange But True" columns, we've selected 58 of the most surprising, fascinating, useful and just plain wacky topics confronted by our writers over the years.
Introduction
Stranger Than Fiction
The Animal Kingdom
Chocolate Is Poisonous to Dogs
Komodo Dragons Show That Virgin Births Are Possible
A Cockroach Can Live without Its Head
UV Light Puts Spiders “in the Mood”
Cats Cannot Taste Sweets
Elephants Never Forget
Whale Waste Is Extremely Valuable
For Baby Birds and other Critters, Human Touch Is Taboo
Pets Protect Children against Allergies
Mushroom Outsizes Blue Whale as World’s Largest Organism
Dogs Can Talk
Squid Can Fly
Babies and Parents
Babies Resemble Their Fathers More Than Their Mothers
Artificial Reproduction Leads to Sickly Children
Fathers Can Get Postpartum Depression
Males Can Lactate
Babies Exposed to Classical Music End Up Smarter
Men Have a Biological Clock
The Environment: Earth and Space
If the Sky Is Green, Run for Cover—a Tornado Is Coming
Smog Creates Beautiful Sunsets
South of the Equator Toilets Flush and Tornadoes Spin Clockwise
The Earth Is Not Round
Black Holes Sing
Liven Up Your Flowers with Vodka and Citrus Sodas
Living People Outnumber the Dead
Technology
NASA Created a Million-Dollar Space Pen
White Computer Screens Consume More Energy Than Black Ones
Leaving Fluorescent Lights on Saves Energy
Helmets Are Car Magnets for Cyclists
Premium Gasoline Delivers Premium Benefits to Your Car
Health Habits
Raw Veggies Are Healthier Than Cooked Ones
Greasy Foods Equal Bad Skin
Water, Part 1: You Must Drink 8 Glasses of Water Daily
Water, Part 2: Too Much Can Kill You
Antioxidant Supplements Help You Live Longer
Vitamin Supplements Improve Your Health
Generic Drugs Are Bad for You
Antiperspirants Do More Than Block Sweat
tibacterial Products May Do More Harm Than Good
The Body
Urinating on a Jellyfish Sting Will Ease the Pain
It's No Tall Tale, Height Matters
Circumcision Helps Prevent HIV Infection
Underwire Bras Can Cause Cancer
Cell Phones Can Cause Brain Cancer
No Big Toe, No Go
Stress Causes Gray Hair
Chewing Gum Takes Seven Years to Digest
Opera Singers Can Shatter Glass
Mind and Brain
Half a Brain Is Sometimes Better Than a Whole One
The Bigger the Brain, the Smarter You Are
Spring Fever Is a Real Phenomenon
Testosterone Alone Does Not Cause Violence
Less Sleep Means More Dreams
Waking a Sleepwalker Could Kill Them
Miscellany
Archimedes Coined the Term "Eureka!" in the Bath
Turning a Wobbly Table Will Make It Steady
Infinity Comes in Different Sizes
A Spoon in the Bottle Keeps Champagne Bubbly