Browsing: years

When Harvard astronomer Cecilia Payne submitted her 1925 doctoral thesis arguing that the Sun was made almost entirely of hydrogen, the field’s senior figure Henry Norris Russell talked her into adding a line calling the result ‘almost certainly not real,’ and then published the same conclusion himself four years later to widespread acclaim.

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In 1925, a British graduate student at Harvard named Cecilia Payne handed in a doctoral thesis that quietly upended astronomy.…

The 69-Cent Soap Years

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Hand soap: Photo from Pixabay/Petra Recently, I was walking with a friend who described how recent inflation has hit her…

When the U.S. military finally deployed frequency-hopping spread spectrum on Navy ships during the 1962 Cuban Missile Crisis blockade, the patent that described the technique had expired three years earlier, and its inventor was watching the news in a Los Angeles bungalow without any idea her idea was at sea.

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On August 11, 1942, the U.S. Patent Office granted Patent No. 2,292,387 for a “Secret Communication System” to two inventors…