الموضوع
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هل تولد الحياة من رحم الموت؟؟؟ دراسة بحثية
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تاريخ الإنضمام :
Sep 2009
رقم العضوية :
7857
المشاركات:
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برسي سبنسر
Percy Spencer
From Wikipedia, the free encyclopedia
Percy LeBaron Spencer (9 July, 1894 – 8 September, 1970) was an
American
engineer
and inventor. He became known as the
inventor
of the
microwave oven
.
Spencer was born in
Howland
,
Maine
.
His father died in 1897, and his mother left him a short time later. He lived with his aunt and uncle after that
.
He never graduated from grammar school, but went to work in a mill as an apprentice at age 12, before joining the
U.S. Navy
in 1912 to learn
wireless telegraphy
. He joined the
Raytheon Company
in the 1920s.
In 1941,
magnetrons
, which were used to generate the
microwave
radio signals that are the core mechanism of
radar
, were being made at the rate of 17 per day at Raytheon. While working there, Spencer developed a more efficient way to manufacture them, by punching out and soldering together magnetron parts, rather than using machined parts. His improvements were among those that increased magnetron production to 2,600 per day. For his work he was awarded the
Distinguished Public Service Award
by the
US Navy
.
In 1945, while standing in front of an operating magnetron, a chocolate bar in his pocket melted. He then tested popcorn in front of the magnetron (surely turning up the power and standing out of the beam), and it quickly popped all over the room. Development of the
microwave oven
grew out of these observations, and by 1947 a commercial oven was being sold by Raytheon. (Note: He received US patent 2,495,429 out of his invention of the
microwave oven
.)
He became Senior Vice President and a senior member of the
Board of Directors
at Raytheon. He received 300
patents
during his career at Raytheon; a building there is named after him. Spencer was married and had three children, James, John, and George.
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