Archive for March, 2008

Zeolites

Wednesday, March 5th, 2008

 

 
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Today, we’re going to meet a rock, a talented rock called a zeolite. On Engineering Works!
To most of us, a rock is a rock. But imagine an odd rock with a network of pores so small they can trap molecules, even atoms. Or trap some things and let others through, like a sieve. You could [...]

Dirty bombs

Wednesday, March 12th, 2008

 

 
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We’re going to look into one of the threats that make terrorists terrifying. Dirty bombs. Today, on Engineering Works!
Only a while ago, terrorism was just a word. Now it’s something everybody knows about. Car bombs. Hijacked airliners. Anthrax in the mail. One of the scariest threats is something called a dirty bomb. Dirty bombs are [...]

Doppler

Wednesday, March 19th, 2008

 

 
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We’re going to listen to a sound that fascinated an Austrian scientist 150 years ago. Today, on Engineering Works.
We may not remember what it’s called, but we’ve all experienced something called the Doppler effect. It’s the change in the pitch of the sound of a locomotive as it goes by you. Or maybe the sound [...]

Fab lab

Tuesday, March 25th, 2008

 

 
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It’s almost like the fairy tale of the genie in the lamp. But you get more than three wishes — personal fabrication, today on Engineering Works!
All of us have wanted things that we couldn’t find. Not big or expensive, but we couldn’t find it anywhere — spent hours Googling. It didn’t exist.
Now information technology experts [...]