In 1945 engineer Percy Spencer was researching radar at the Raytheon Company when he stopped in front of a magnetron, and noticed the chocolate bar in his pocket was melting. Spencer and other engineers at Raytheon went on to develop the first microwave oven.
The Microwave
Percy L. Spencer invented the Microwave Oven
1872
in 1945 .
the microwave
in 1884
the post it note
to heat food
Perry Spencer emmer effer
1946, Dr. Perry Spencer
the Lincolns settled near Little Pigeon Creek in what was then Perry County, later part of Spencer County.
he created post it notes and he created in 1970.