Search results
Results from the WOW.Com Content Network
A microwave oven, c. 2005 Simulation of the electric field inside a microwave oven for the first 8 ns of operation. A microwave oven heats food by passing microwave radiation through it. Microwaves are a form of non-ionizing electromagnetic radiation with a frequency in the so-called microwave region (300 MHz to 300 GHz).
In 1947, the first commercially produced microwave oven was about 6 feet tall, weighed about 750 lbs, and cost about $5,000 (equivalent to $70,410 in 2024). In 1967 the first more affordable, $495 (equivalent to $4,668 in 2024), and reasonably sized (counter-top) Radarange brand microwave oven was made available for sale, produced by Amana (a ...
Raytheon ranked 71st among U.S. corporations in the value of World War II military production contracts. [13] In 1945, Raytheon's Percy Spencer invented the microwave oven by discovering that the magnetron could rapidly heat food. In 1947, the company demonstrated the Radarange microwave oven for commercial use. [14]
Raytheon patented the dielectric heating device, naming it the Radarange, and in 1947 the first commercially available microwave oven hit the market. What started as an 800-pound device priced ...
In 1947, just a year after Spencer’s snack food serendipity, the first commercial microwave oven hit the market. Called the “Radarange,” it weighed nearly 750 pounds and cost more than ...
Amana was acquired in 1965 by Raytheon, [7] which had invented the microwave oven in 1947, and introduced the commercial Radarange Model 1611 in 1954. [5] In 1967, Amana introduced a consumer model of the Radarange, the first popular microwave designed for home use. [4]
This was the first pocketable calculator priced at less than JP¥100,000 (less than US$300), and turned out to be a popular item. [13] Also in the same era the company introduced the first microwave oven with a turntable between 1964 and 1966. The company was renamed Sharp Corporation in 1970.юзНЬ Sharp produced the first LCD calculator in ...
Although the Easy Bake Oven technically was not the first working toy oven for children, the product grew in popularity due to use of a light bulb as a heat source -- in addition to the vast array ...