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Posts tagged radio waves

December 27, 2005

 

L. G. M.?

Last time we mentioned the time when Soviet radio astronomers went public about listening in on radio signals from an alien civilization. As it turned out, what they were actually listening to was a quasar: the blazing core of a galaxy that can emit radio waves that fluctuate in a regular pattern. So regular, in fact, that people thought it was an alien intelligence. Learn more on this Moment of Science.

December 7, 2005

 

a small radio made in the 1960's

Aliens! Aliens!…oops

This is it! Scientists have finally found definitive proof of an advanced alien civilization of incredible power!

September 27, 2003

 

Laser Gun

But the farther away the gun is, the wider the beam gets spread so that only a small fraction of the total light power can go into anyone’s eye.

September 27, 2003

 

Killing Mussel Pests with Radio Waves

We hear a lot about insect pests, but have you ever heard about the zebra mussel and what it can do to power plants? Find out on today's Moment of Science.

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