Science: Baby Bombs

The Associated Press sent out a short item last week about baby atomic bombs now in the possession of the U.S. The bombs are small enough, said the A.P., to be carried by jet bombers, but are not necessarily less powerful than old-style A-bombs.

This information was said to have come from unidentified "officials." Whether official or not, the news was very likely true, to some extent at least. The heart of an atomic bomb is its fissionable material—something like 25 lbs. of plutonium or U-235. The rest might be largely eliminated by improved...

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