Product is intended for household use only, not industrial or laboratory applications. Must comply with WEEE and RoHS directives. Should not be used for drying or heating wet surfaces. Children under 8 should not operate or clean the appliance
Percy Spencer, Raytheon engineer, accidentally discovered microwave heating in 1945. He observed microwave heating melting candy bar while testing radar magnetron. First successful microwave cooking was popcorn and egg heating
Percy Spencer invented microwave oven in 1945 while testing magnetron at Raytheon. First commercial microwave was Radarange 1161, weighing 750 pounds and costing $5,000. Second generation microwave (1954) consumed half power but cost $2,000-3,000. First countertop microwave (1967) by Amana Corporation
Microwave ovens heat food using electromagnetic radiation in microwave frequency range. Percy Spencer independently discovered microwave cooking in 1945. First commercial microwave oven "RadaRange" launched by Raytheon in 1947
Wireless devices discover APs through passive or active modes. Passive mode uses broadcast beacon frames, active mode requires manual configuration. Wireless range depends on antenna and power, not frequency band. 802.11n operates in both 2.4 GHz and 5 GHz bands
Microwave oven evolved from radar research by accident. Percy Spencer discovered melted chocolate bar while exposed to microwave radiation. Dr. Albert W. Hull invented magnetron concept in 1930s