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Why Are Scrubs Usually Blue or Green?
Medical professionals can choose from a wide variety of scrubs with different colors and patterns. So why are plain blue and green ones so popular?
How an Island Full of Landmines Led to a Thriving Penguin Population
War—what is it good for? Well, if the Falkland Islands are any indication, it certainly helps penguins.
Sperm Warfare (Or: Why it Takes 1 Billion Sperm to Make One Zygote)
The average man produces roughly 525 billion sperm cells over his lifetime and releases, in one way or another, more than one billion of them per month and anywhere from 40 million to 1.2 billion in a single ejaculation.
5 Wacky Moments from Olympic Games Past
The Olympic Games showcase the best in sport, but some athletes have gone for the gold in bad behavior.
Under the Sea: 5 Underwater Human Habitats
While man was flying into outer space in the 1960s, he was also diving into an underwater world that was almost as mysterious. Futurists foresaw a day when entire communities of "aquanauts," a person who stays underwater for more than 24 hours, would live



6 Unit-Conversion Disasters
Forgetting to convert units of measurement can result in big-time disasters—like these six examples.
The Surprising Voices Behind Cartoon Characters
Last week we asked you to give us a few of your favorite surprising identities behind cartoon voiceovers. After checking out your terrific comments, we present a few voiceover artists you might not have suspected. Brad Garrett as Hulk Hogan When the then


Balancing on a Bicycle: The Phenomena
Reader Brian writes in to ask "Why can you stay on a bicycle when moving, but not when it's standing still?"
10 Great Train Robberies
Nothing like a train heist to grab out attention. There's a reason they called it the Wild West.
5 Things You Didn't Know About Cher
Cher's done a little bit of everything. She's blown up the pop charts, hosted a hit variety show, and even won an Oscar. Let's take a look at five things you might not know about the woman who was born Cherilyn Sarkisian.