A Moment of Science

Posts tagged heat

September 27, 2007

 

Sunrise at the beach

The Coldest Time of the Day

When the sun first rises in the morning it doesn't get warmer right away, but actually feels colder. Learn more on this Moment of Science.

August 2, 2007

 

Pumping up flat tire

Flat Tires and Diesel Engines

As you fill a flat tire from your hand pump, you notice parts of the pump getting hot. Why would the pump get hot with all that cool air flowing through it?

May 29, 2006

 

manhole

The Case of the Flying Manhole Cover

Say you're walking down a city street, minding your own business, when you approach a manhole...

April 4, 2006

 

window

Wonder Windows

In today's energy-challenged world, efficiency is key.

February 9, 2006

 

paper_clips

Metal Memory

Are you familiar with shape memory alloy? There's no actual memory involved, at least not in computer or human terms.

February 8, 2006

 

bucky_ball

Buckypaper

What's six times lighter than steel but up to 250 times stronger?

January 22, 2006

 

prism

See the Heat

Do all of those bands of color have the same temperature?

December 20, 2005

 

Chinook Crazy

Doesn't heat rise and aren't mountaintops often damp and cold? Learn more on this Moment of Science.

September 22, 2005

 

Slow, Smokeless Burning

Robert Frost once wrote a poem about coming across an old woodpile in the forest. In describing it he refers to the “slow, smokeless burning of decay.” What a great line of poetry. Neat part about it is, it’s also technically correct. Decay is an extremely slow burning process. Or, you could say, fire is an extremely fast decaying process. In either case, what you have is the combination of carbon, oxygen, and hydrogen. Learn more on this Moment of Science.

July 29, 2005

 

Plant Hair

Have you ever seen a hairy plant? Plants may appear to have hair, but the technical term for plant hair is trichomes. These trichomes may resemble hair, but they’re not the same as what we mammals have. Learn more on this Moment of Science.

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