Microwave oven
The development of the cavity magnetron in the UK made possible the production of electromagnetic waves of a small enough wavelength (microwaves). American engineer Percy Spencer is generally credited with inventing the modern microwave oven after World War II from radar technology developed during the war. Named the "Radarange", it was first sold in 1946. Raytheon later licensed its patents for a home-use microwave oven that was first introduced by Tappan in 1955, but these units were still too large and expensive for general home use. Sharp Corporation introduced the first microwave oven with a turntable between 1964 and 1966. The countertop microwave oven was first introduced in 1967 by the Amana Corporation. After Sharp introduced low-cost microwave ovens affordable for residential use in the late 1970s, their use spread into commercial and residential kitchens around the world. In addition to their use in cooking food, types of microwave ovens are used for heating in many industrial processes.
Wonder Pot
The Wonder Pot retained its popularity through the 1970s, especially among new immigrants who did not have ovens. During its heyday, the Wonder Pot spawned its own bestselling cookbook. The introduction of the microwave oven and a national desire to dissociate with the austerity mentality put an end to its widespread use. However, the Wonder Pot is still used by Israeli Haredi families for baking kugels, and it is also popular in this sector on the holiday of Passover for those who do not have a kosher-for-Passover oven.