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Which Common Household Device Was Discovered By Accident By Engineer Percy Spencer? While Working On Research Into Radar Technology In The 1940s, He Noticed That The Magnetron He Was Using Had Melted A Chocolate Bar In His Pocket.

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1. Which Common Household Device Was Discovered By Accident By Engineer Percy Spencer? While Working On Research Into Radar Technology In The 1940s, He Noticed That The Magnetron He Was Using Had Melted A Chocolate Bar In His Pocket.





 
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