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A Moment of Science

Posts tagged chemical reactions

October 5, 2011

 

saturn, earth, moons

Oxygen-Rich, Cold, And May Have Life!

A Moment of Science looks at the many different moons in our solar system.

June 26, 2009

 

Space shuttle in space

Shuttle Glow

Did astronauts Jack Lousma and C. Gordon Fullerton see a ghost aboard their shuttle back in 1982? Find out on this Moment of Science.

September 27, 2003

 

How Cells Get Around

This means that instead of staying in one place, the cancer cells migrate from their original site to other parts of the body.

September 27, 2003

 

The Dirt about Desert Soil

In the desert, the absence of water means little or no chemical weathering can take place. Instead, erosion, frost, sedimentation, and the huge temperature fluctuations between day and night break down the rocky surface into sand or gravel.

September 27, 2003

 

Gas Masks

Since the charcoal filter can’t absorb all chemicals, the last filter uses chemical reactions to clean the air. Say I’m breathing in chlorine-saturated air, like soldiers during World War I.

September 27, 2003

 

Air Bags: Much Ado About Nothing

In most air bags, the sensor triggers chemical reactions that produce nitrogen gas from chemical tablets stored in the unit. The gas whooshes into the bag and inflates it in only a few milliseconds.

September 27, 2003

 

Is Microwaving Safe for Food?

Microwaves are low energy electromagnetic waves that have so little energy they can’t trigger chemical reactions in the molecules they encounter.

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