I’ve always wondered why only nuclear bombs detonate before hitting the ground and not the actual moment of impact. Does it affect the amount of damage? or does it reduce nuclear waste and radiation?
In: Physics
The blast is a sphere. If you detonate it on the ground, then the blast is absorbed by the ground, any buildings or hills in the way, etc. If you detonate it in the air, the entire sphere expands toward the ground from above and you get maximum damage.
And yes, typically there is less radioactive fallout from an airburst than a groundburst.
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