The invention of the phototransistor was announced
On the 30th March, 1950, Dr. John Northrup Shive’s invention of the phototransistor was announced.
Champagne was invented by a monk! Dom Perignon added sugar and yeast to wine in Champagne, France, in 1688.
On the 30th March, 1950, Dr. John Northrup Shive’s invention of the phototransistor was announced.


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