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A nuclear radiation shelter doesn't have to cost thousands. You can construct one from many things in your own home. This is just a sample. Surviving a nuclear attack involves three things: Time, Distance and Shielding. For shielding, Density is key. Time: Radiation is no longer dangerous, for the most part, after 3 days. It's the "7/10 rule" which states that for every sevenfold increase in elapsed time, the radiation dose rate will decrease by a factor of 10. In other words, after 7 hours, the radiation has decayed by 90%. After 2 full days, it's lost 99% of it energy. After 3 days, it is generally safe to be outside. If you have a radiation detector, this is the best way to tell when it's safe to be outside. After two weeks, the "all clear" should be given. |
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