Most efficient fallout shelter layout10/5/2023 ![]() ![]() After two weeks you can leave your shelter for short visits. 49 hours later it’s dropped by a factor of 100. In other words, 7 hours after the blast the radioactivity of the fallout has dropped by a factor of 10. For each factor of seven increase in time, the radiation from fallout is reduced by a factor of ten. ![]() You can measure the half-life of fallout in hours, not years. Most of the material caught-up in a nuclear blast is not naturally radioactive, so it’s temporary charge is very short lived. Within 30 days the radiation is essentially gone – except for a few long living isotopes (variations of strontium and iodine) that will continue to show up for years in certain foods (like milk). The fallout from a nuclear bomb has an incredible short half-life.The most important thing you should know is that nuclear war is totally survivable. Hollywood disagrees – but once you learn a few facts about the fallout from a nuclear bombs you’ll see what I mean. I’ve written about it before and posted tiny fallout shelter designs but today I thought I’d share the basics of nuclear war survival and shelter design – and a small home that would function nicely as a fallout shelter. I’m also an optimist, so went into the study of nuclear war with the hope of finding an answer other than doom. So for fun – and maybe as a weird sort of therapy – I started learning about fallout and nuclear war as a teenager. I’m Gen-X and grew up during the cold war. ![]() I’ve got a hobby – a weird one – and its the study of fallout shelters and nuclear war survival. ![]()
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