Science
Scientists find upper limit for the speed of sound – Phys.org
A research collaboration between Queen Mary University of London, the University of Cambridge and the Institute for High Pressure Physics in Troitsk has discove…

A research collaboration between Queen Mary University of London, the University of Cambridge and the Institute for High Pressure Physics in Troitsk has discovered the fastest possible speed of sound.
The result- about 36 km per secondis around twice as fast as the speed of sound in diamond, the hardest known material in the world.
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