The year was 1945 and World War II raged with not many knowing its conclusion was on the horizon. In the war's latter days, air superiority was the name of the game. It was prudent for the US military to be forewarned of enemy attacks. To this end, the military prioritized advancements in radar technology which used magnetrons and radio waves to detect incoming aircraft. And thus, Percy Lebaron Spencer entered American folklore.
Despite being almost entirely self-educated, Spencer was already a leading expert in radar tube design. He was employed by Raytheon and constantly worked to improve the functionality and production of magnetron arrays. One day, while working near an active radar set, he reached into his pocket for a candy bar (differing accounts debate whether it was a chocolate bar or a peanut cluster). To his astonishment, he'd found it melted in its wrapper. Spencer surmised that the electromagnetic waves emanating from the radar had liquefied his snack. Ever the scientist, he directed his experimental verve to an egg. This exploded in the face of a co-worker. Not to be deterred, he and his compatriot, the latter having cleaned the egg off his face, placed a few corn kernels in front of the magnetron which subsequently popped into fluffy goodness. Consequently, popcorn became the first food to be prepared by microwave and a new cooking method was born.