Oven gas stove included the AGA cooker invented in 1922 by Gustaf Dalén. The first electric ovens were invented in the very late 19th century, however, like many electrical inventions destined for commercial use, mass ownership of electrical ovens could not be a reality until better and more efficient use of electricity was available. More recently, ovens have become slightly more high-tech in terms of cooking strategy. The microwave as a cooking tool was discovered by Percy Spencer in 1946, and with the help from engineers, the microwave oven was patented. The microwave oven uses microwave radiation to excite the molecules
Earle Spencer Earle Spencer Earle R. Spencer (born 1926) was an American trombonist and leader of a progressive swing big band bearing his name — Earle Spencer and His Orchestra. He formed the band in 1946 and disbanded in 1949. The band recorded for Black & White Records — a label so named by its founder, Les Schreiber, to reflect the races of its recording artists. Spencer was a trombonist who, after playing in the band that he led from 1946 to 1949, gave up playing entirely, due partly to a heart murmur, due partly to the hard economics of big bands