Featured Question


Engineering

Melodia from Montreal asks,

Approximately how many nuclear tests do the americans alone conduct every year?

the answer

No US nuclear tests have been conducted for quite some time. The last...

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Earth

Joe from Atlanta, GA asks,

Why are the water levels of the Atlantic and Pacific Oceans different at the Panama Canal if they...

the answer

The Pacific is somewhat higher than the Atlantic at the Panama Canal. I...

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Earth

Neil O. from Oshawa asks,

What is your personal view of global warming? Do you believe that humans are having a significant...

the answer

First of all, I'm a science writer, not a meteorologist. But I was trained...

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Physics

Marty Ellis from Pittsburgh asks,

Can a sintered ore magnet be re-magnetized in a different configuration of its poles? Does it need...

the answer

Yes, the poles of a magnet can be changed by exposing the magnet to a very...

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