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While building magnetrons at MIT in the 1940s, Percy Spencer noticed a melting chocolate bar in his pocket. Deeper investigation and exploration led to the invention of what household device? Spencer received no royalties for this invention, first marketed as the Radarange.

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Boston has the nickname “the Athens of America” thanks to its more than 100 higher learning institutions in the city. 


1. While building magnetrons at MIT in the 1940s, Percy Spencer noticed a melting chocolate bar in his pocket. Deeper investigation and exploration led to the invention of what household device? Spencer received no royalties for this invention, first marketed as the Radarange.





 
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