March 2024: Science History from 50, 100 and 150 Years Ago
Briefly

Rock under the stress of compression is more resistant to erosion than unstressed rock, so thereafter the unstressed section will erode more rapidly than before.
At the end of 1973 the U.S. had 42 operable [commercial] nuclear reactors, according to the Atomic Industrial Forum Inc. Utilities canceled more than 50 reactor orders from 1980 to 1984.
Read at www.scientificamerican.com
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