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Posts tagged air

September 3, 2015


hot air balloon

Full of Hot Air?   

It's a gas! Air consists of nitrogen and oxygen and lots of empty space.

November 30, 2014


clouds at the foot of a mountain

Is It Always Colder on Top of Mountains?

Where's the best place to keep warm, a mountain top or a valley? Well, it just depends...

November 27, 2014


hands pushed against glass window in an attempt to escape

Fear of Suffocation

Don't worry, there's plenty of air to go around, even in tight spaces.

November 19, 2014


inside hot air balloon

Lighter Than Air

Human flight began as early as the 18th-century when scientists learned how to harness the power of different gases.

July 30, 2014


A pair of hands hold up puzzle pieces in silhouette of cloudy sky

Floating Clouds

Despite weighing tons, clouds seem to free-float in the air. How do the billowy marvels stay up in the sky?

March 7, 2014


Trilobite fossil

A Change In The Air

Most of us take our oxygen-rich atmosphere for granted. Once upon a time, though, Earth's air was very different.

January 27, 2014


Macro view of a single snowflake

Warm Spells And Snow

It may sound paradoxical, but warm spells and flurries often go hand in hand.

September 30, 2013


sunrise above the water

Sunrise Or Sunset: How Do You Tell?

When looking at a picture of the sun, how could you tell whether or not it's rising or setting?

July 25, 2013


hundreds of colored balloons in the sky

Could You Actually Float Your House Away Using Helium Balloons?

A baby grabs the string of a single helium balloon and floats right out of its baby carriage. Why can't people really float into the air using helium balloons?

May 16, 2013


Mount Everest across landscape

Air Pressure On Everest

Planning on climbing Mount Everest? You might want to plan to be gasping for air. Learn more on this Moment of Science.

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