This thread is hilarious https://www.reddit.com/r/Lightbulb/comments/5b3mk3/why_arent_we_already_using_c_the_speed_of_light/?sort=top
Why aren't we already using C (the speed of light) as the universal unit for speed? It converts nicely into everyday values (examples below) • r/Lightbulb
100 kilometers per hour ≈ 90nc† 100 miles per hour ≈ 150nc 10 feet per second ≈ 10nc walking speed ≈ 4nc jogging speed ≈ 8nc ...
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