Here are a few examples of data requiring more than 32 bits of precision: 1. Radio pulsar timing --- 0.1 microseconds over years 2. Astronomical X-ray data --- 0.01 microseconds over years 3. Planet Ephemerides --- 1 microseconds over decades 4. Laser/Atomic Spectroscopy --- 0.1 femtoseconds over milliseconds 5. Fusion --- 1 nanoseconds over seconds 6. Neutrino detection --- 1 millisecond over decades =Fred Knight (INTERNET:knight@xxxxxxxxxx)
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