sorry my link hould have been this
www.space.com...
sorry for the confusion this is the paraagraph
Nuke or meteor?
The International Monitoring System is a developing worldwide network of 321 monitoring stations that use various techniques to make sure no one
violates the Comprehensive Nuclear Test Ban Treaty (CTBT), in which nations agree to ban all nuclear explosions.
Though the U.S. Senate has not ratified the signed treaty, many other nations have.
As part of the monitoring system, construction has begun on a global array of 60 infrasound listening devices. And about 100 stations using other
techniques have been built.
But infrasound technology can also detect explosive volcanoes, meteorological events and even rocket launches and supersonic aircraft. It is therefore
questionable how accurate it is in monitoring nuclear tests.
A pair of Dutch researchers got some surprising results when they set up a similar device. On a November night in 1999, a flash of light brightened
the skies above northern Germany. In the Netherlands, Läslo Evers and Hein Haak detected the sonic boom associated with the explosion, but could not
distinguish it from the expected signature of a nuclear explosion.
In January of this year, the researchers reported their results in the journal Geophysical Research Letters, suggesting that the devices might not be
capable of distinguishing between a natural attack from space and a clandestine nuclear test.
Nonetheless, the worldwide monitoring plan moves forward.
Last month, a CTBT commission announced that the first infrasound station, in Germany, had been certified for use. The system was constructed deep in
the Bavarian forest, which officials say will help cut down on wind noise that might fool the microphones. And each sensor is surrounded by a network
of baffles to further block the wind.
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as a result any UFO's would be heard.
-Juiel