Most of an iceberg is beneath the surface. Just calculated the joules of a 5,176 grain 25 mm bullet at 980 m/s. Bc space combat.
@manicguitarist only remotely tricky bit: getting data on 50BMG, scaling x8 to 25mm, converting grains -> g, confirm def of J as kms, g->kg
7:48 AM - 12 May 2014
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