How come people say 5,000 km and not 5 Mm?
why not just say millions of meters or Mega meters?

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[–] 35 points 2 years ago (3 children)

But only in regards of nuclear bombs. Maybe it's because of the scientific origins of these fields. Probably the same reasons why Americans measure firearm munition in mm.

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  • [–] 16 points 2 years ago (4 children)

    Firearm's ammunition is a mixed bag because many military sizes are standardized with the rest of NATO. 5.56, 7.62, and 9 mm sure; but then you get a bunch measured in caliber .308, .45, .50.

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  • [–] [S] 2 points 2 years ago

    we do list volcanic eruptions in megatons of TNT. The makers of the first a bomb pick it since the largest explosion ever made by then was a ship full explosives and some had calculated how many tons of TNT that ship was carrying

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