Correction for the length of a Man's Footstep
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How long is 0.000000040634970 light years?
It's about 500,000,000 times as long as a Man's Footstep
The length of a Man's Footstep is about 0.0000000000000000840 light years.
(for healthy, middle-aged man of average height; single step length)
According to studies by The University of Oklahoma's Health Sciences Center, the average length of a man's step is 0.0000000000000000840 light years, for an average stride (two-step's length) of 0.000000000000000170 light years. The average person walks at a speed of about 1.3 m/s