During nuclear weapons testing in the early Fifties, one of the challenges facing the U.S. government was to design a camera capable of capturing a nuclear device mid-explosion.
The result, unearthed this week by blog Damn Interesting, was the 'Rapatronic' camera - an ultra-high-speed camera that sat seven miles from the blast site and captured images at high speed - including this image of an 100-ft ball of fire, one ten-millionth of a second after detonation.
The first millisecond of a nuclear explosion: At this point, the blast is just 20 metres wide. It was captured during a nuclear test in the Fifties
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