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The nuclear bombs used in Japan in the end World Two, were dropped with the warning written in pamphlets dropped days before. The symbol for nuclear danger is a yellow and black which everybody seems to know. It is even in hospitals. Nuclear power plants providing electricity are full of them. One of the harmful species from nuclear fallout is the radioactive isotope of strontium, 9038Sr. so nuclear or radiation are harmful and the warning sing has to be always placed in those places.

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12y ago

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