My grandmother, who before passing away not too long ago at the age of 99, felt that despite seeing automobiles, computers and television all come of age, the microwave oven was the thing that made the largest impact in her life as a housewife. Her husband was a doctor, and with his irregular hours, it was nearly impossible to have a hot dinner ready for him when he got home, but the microwave changed that completely. It was a revolution in the production of hot meals, which is something most of us take for granted.