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Posts tagged air

May 26, 2010



Can You Hear Me Now? The DIY Science Of Tin Can Phones!

Forget cell phones! Tin can telephones are the way to go. Learn how they work and how to build your own!

May 18, 2009


Smoke filled air from pollution

Clean Air, Longer Lives

What's so important about having clean air and reducing air pollution? Find out on this Moment of Science.

May 15, 2009


Pouring rain

When It Smells Like Rain

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

December 31, 2008


Old mill engulfed in flames

What Is Fire?

The ancient Greeks believed that fire--along with earth, water, and air--was one of the four essential elements that made up the world.

December 15, 2008


Girl using hands as megaphone


Have you ever wondered how simple megaphones like cupping your hands around your mouth amplify your voice so well?

October 20, 2008


Geese flying in "V" formation

Not So Silly Geese

Geese fly in a "V" formation mainly to save energy. Why a "V?"

August 22, 2008



The Cleaning Power Of Soft Drinks!

Learn how soft drinks can help you clean tarnished metal...

December 12, 2007


Shallow pond during day

Quick, Hide in Here!

Unfortunately, lying down in shallow water and breathing through a hollow reed won't work if you need a quick getaway. Learn more on this Moment of Science.

October 17, 2007


Pink Balloon

Helium Balloons

Helium balloons fly because they're lighter than air. As you walk through air, it's natural to think of air as weighing nothing, though that is not the case.

June 11, 2007


The New York City Skyline at night.

Rocking Skyscrapers… How Safe Are They?

Have you ever been at the top of a tall skyscraper and felt the building sway? Exactly how safe are the white collars workers of big city life?

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