Tuesday, October 09, 2018

[ccootnhf] Light days

The day is the natural unit of time, encoded into all life on the surface of the earth.  Therefore the light day ought to be the natural unit of length.

1 light day = 25902068371200 meter (exactly)

1 light day = 173.14463 AU (astronomical unit)

1 meter = 38.606955 femto light day

1 femtolightday = 1.0197665 inch

1 light nanosecond = 11.574074 femto light day

1 attoparsec = 1.1912862 femto light day

1 parsec = 1.1912862 kilo light day

1 light year = 365.25 light day (exactly) (NB: the "units" program gives an incorrect value for "light year" with a space but the correct value for "lightyear" or "ly" without a space.)

Unfortunately the length of the day, the day-night cycle encoded into life, changes as the Earth's rotation slows down (causing leap seconds).

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