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Is It Always Colder on Top of Mountains?

Dog Mouth Vs. Human Mouth

Some people believe that a dog's mouth is cleaner than a human's. While this may be true, which mouth is more dangerous to people?

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The Trick Inside A Trick Candle

No sooner are they blown out, then they re-light and can be blown out again. How can a candle light itself?

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Exploding Water

Heating water in the microwave seems quick and easy, but you may be taking a dangerous risk.

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Make Your Own Compass

Learn this old sailing trick and find your way back to shore!

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The Floating Needle

Here's a neat experiment you can try at home!

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Getting It Backwards

Why are letters reversed in a mirror? Try this experiment with pen and paper.

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What Makes A Yo-Yo Yo?

What Makes a Yo-Yo Yo?

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An Easy Way To Teach Your Kids About Displacement

Why does a sheet of tin foil float but a ball of tin foil sink?

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Which Hits The Ground First: A Golf Ball Or A Bowling Ball?

Yes, the classic physics question is visited again. A Moment of Science learns about mass and gravity.

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What Is Forward Momentum?

It's time again for the Moment of Science Physics Quiz!

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When It Smells Like Rain

It smells like rain, but how? Find out in today's A Moment of Science.

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The Shape of a Whirlpool

A whirlpool is the result of two forces acting against each other.

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Why Frisbees Fly

With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well?

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Haven’t We Met?

If you suffered from the neurological disorder called "facial agnosia," you might not recognize the faces of close friends and family. How could this happen?

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How Do You Make A Diet-Coke Float?

Here is an at home experiment you can try! Learn about molecular density!

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Swinging Physics: Potential And Kinetic Energy Working Together

How is swinging on a swing related to physics? What are potential and kinetic energy?

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Guys and Their Video Games

It's no surprise that guys are more into video games than girls, it's science!

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Parkin’ and Honkin’

Ever notice how angered you get when you’re waiting for someone to leave a parking spot that you want? Learn why on this Moment of Science.

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Good Morning, Dave

In the middle of the last century, British mathematician Alan Turing proposed the following test for determining whether a computer could think...on its own!

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Why You Can’t Knock Down a Clown

Remember those inflatable clowns that stood about three feet high and had big red noses, meant for punching? Hit the clown as hard as you could, right back up.

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Hypnic Jerks

Have you ever been lying in bed, about to fall fast asleep when your leg jerks suddenly, snapping you awake?

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Caffeine Persuasion

Have you ever bought coffee for someone to butter them up? A group of scientists set out of discover if this angle really works.

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Get Angry, Think More Clearly

Say you're about to take a test or give an important presentation at work, would you rather be calm and collected or angry and agitated?

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A Candle in the Dark

You light a candle in a dark room. Now suppose a mirror is brought in. Is the room brighter?

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Circuitous Plumbing

Why all the twists and curves? Find out several reasons why straight drainpipes are not a good idea!

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Superballs!

Ever wonder what makes super balls so super bouncy?

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Cool Cash

It neat, it's educational, and best of all, it doesn't involve anything that could explode or become poisonous or make a terrible smell.

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A Ping Pong Physics Trick

Here's a question for you: Do you think you could produce enough wind to blow a ping pong ball out of a funnel?

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Penny Stack

Here's a question of burning scientific importance: How high can you stack pennies before they fall over?

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Laughter is a Social Signal?

Laughter research has found that less than 20% of laughter is a sincere response to someone's humor. In fact, it's primarily a social signal.

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Recent Audio Podcasts

Why Icicles Are Wavy

icicles hang from gutter

Icicles are lopsided formations, by nature. Here's why:

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Talking While Driving

woman drives while talking on cell phone

Scientist proves that driving while talking on your cell phone makes you a road hazard.

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Something I Ate

woman in bed holds stomach in pain

What you're calling a stomach "flu" is probably food poisoning, and you might be the cause of it.

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A Moment of Science Blog

Baby Pictures of a Solar System

Picture of a

Detailed images of a young solar system reveal how the planets in our solar system may have formed.

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The Science Behind the China–U.S. Climate Pact

climate change on/off switch

How will China and the U.S. reach their new goals for emissions reductions?

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One-Of-A-Kind Singer Discovered in NYC: A New Frog Species

side view of Atlantic Coast Leopard Frog.

Genetic analysis has confirmed that a frog living in New York City wetlands is a new species.

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