Hair grows at a rate of 4.6 yoctometres per 1 femtosecond. The yoctometre is the smallest derivation of the meter within the standard SI unit of measurement. 1 meter is equal to 1,000,000,000,000,000,000,000,000 (1 septillion or 1024) yoctometers. 1 femtosecond […]
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