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this post was submitted on 28 Oct 2026
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I'm surprised how small it is, given what Little Boy did to Hiroshima. I was expexting it to be 100s of metres across
this was only 3 kilotons so littleboy was like 5 times as powerfull. Also being underground it has to compress already solid matter. rock and salt.
Hey I assume it was just a brain fart but Fukushima was the Power plant reactor disaster from 2011. Little boy was dropped on Hiroshima.
Cool photo though! I'd heard of plowshare but never knew there were photos of the cavern!
Ah thanks, whoops. Yes, this is actually the only ohoto of such a cavern that was ever taken!
Your history teacher should be disciplined for malpractice.
Little Boy was only 15 kilotons, subsequent tests were orders of magnitude stronger. Little Boy also detonated in the air above Hiroshima.