Forged in the fighting of World War II, the cavity magnetron was the heart of radar signals used to identify attacking German forces. The magnetron itself was truly an international effort ...

Forged in the fighting of World War II, the cavity magnetron was the heart of radar signals used to identify attacking German forces. The magnetron itself was truly an international effort ...

Credit: RFHIC Sitting inconspicuously in kitchens around the world is a palm-sized device that helped turn the tide of World War II. Invented ... the Atlantic, the cavity magnetron resembles ...