Who invented the theremin?
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
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- Has the waterphone been used to communicate with whales?
“The waterphone has been used in attempts to communicate with whales.”
Reference: Waterphone
More from this shelf
Who invented the waterphone?
Richard Waters invented the waterphone in the 1960s and patented it in 1975.
Military sonar technology causes beachings
Submarines have been using low and mid-frequency active sonar technology, a deafening soundwave that is dangerous even 300 miles from it's source. Some mid-frequency sonar systems can put out over 235 decibals, which is about as loud as a rocket launch.
Animals for hundreds of miles literally jump out of the ocean to try to avoid the sound. The damaging effects vary, bet are akin to decompression sickness causing internal bleeding and bursting organs including lungs and eardrums. When beached dolphins are reported this sonar technology is rarely mentioned in the news, although the link has been demonstrated.
What can you do? learn more here
(update: court blocks sonar 7/6/06)