Tuesday, December 15, 2009

Ligo Music

The LIGO or Laser Inferometric Gravitational wave Observatory is basically a device which constantly measures its own length. But it measures this length with a precision of less than the size of a proton. In fact the measurement is basically as good as it can get since the precision is starting to bump up against the de brolie wavelength of the mirrors whose relative position the device is measuring.

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