Reply to post: Re: Other explosives

Bombing raids during WWII sent out shockwaves powerful enough to alter the Earth's ionosphere

Aladdin Sane Silver badge

Re: Other explosives

It looks really weird using SI notation with imperial units.

On a separate note, the 22000lb grand slam was dropped from a great height in order to penetrate deep underground (up to 130ft of earth or 20ft of concreate) before exploding, creating earthquake like effects.

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