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Posts tagged air

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

Megaphones

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

 

cola

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?

September 23, 2006

 

two pilots sitting in the cockpit

Airplane Navigation

How do modern-day pilots navigate their way at 35,000 feet?

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