Word: manitowoc
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Dates: during 1960-1969
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...Manitowoc...
What if all or part of an orbiting object falls to earth and harms either property or persons? Nobody has yet been hit by a piece of falling space hardware, although four years ago a 20-lb. piece of Sputnik 4 plunked down on a street in Manitowoc, Wis. (It was duly returned to the Russians after being analyzed.) Because of the inherently high velocity of any object in orbit, most pieces of space junk are consumed in their fiery plunge through the earth's atmosphere. But as man launches more and more satellites and probes-the Japanese...
...Manitowoc...
...atoms to unstable manganese 54, which gives off radiation while it is decaying to stable chromium 54. This is good proof that the object was part of a spacecraft that had orbited for a long time above the atmosphere, which stops most cosmic rays. The piece that fell on Manitowoc, Wis., probably came from the breakup of Sputnik IV, the five-ton Russian satellite that was launched on May 15, 1960 and disintegrated Sept...