I suck at math but you guys give it a go....
A standard rule of thumb for recalculating blast effects for various sizes
of bombs is to take the megatonage of the new bomb divide by the megatonage
of the old bomb, take the cube root of the results and multiply that times
the radius of blast effect. Example to compare a 1 KT (0.001 MT) to a 1,000
KT (1MT) 1,000 divided by 1 = 1,000. The cube root of 1,000 is 10
(10x10x10=1,000). Therefore you can take the blast effect at X feet (or
miles) for a 1 KT and multiply that distance by 10 to get approx. the same
effect for a 1,000 KT bomb. Other common multipliers would be:
Mulitplier/divider cube/cube root 1 KT multiplier 1 MT divider
2 2x2x2=8 8 KT 125 KT (0.125MT)
3 3x3x3=27 27 KT 37 KT
4 4x4x4=64 64 KT 16 KT
5 5x5x5=125 125 KT 8 KT
6 6x6x6=216 216 KT 4 KT
7 7x7x7=343 343 KT 3 KT
8 8x8x8=512 512 KT 2 KT
9 9x9x9=729 729 KT 1 1/3 KT
10 10x10x10=1,000 1,000 KT (1 MT) 1 KT
So this shows that if you want to double the damage distance for a given
size of bomb you need to increase the power by a factor of 8. If you want
to double that distance again you need a bomb that is 8x8 or 64 times as
powerful. This is why you can get the same amount of damage done with 10-40
KT bombs spread out as you can with a 1,000 KT (1 MT) bomb.
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