Trombone
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Trombone's shock waves caught on film

Researchers have filmed a shock wave coming from a trombone for the first time.

Shock waves are a special kind of pressure wave, which can sometimes even exceed the speed of sound.

The idea that trombones create weak shock waves was first put forward in 1995, but only now has the process been filmed.

The video was revealed at the American Acoustical Society's meeting in Seattle, US.

  • 27 May 2011
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