改变世界14大发明：马桶 胸罩也入围

　　Microwave Oven (1945)

　　The development of the microwave oven was one of those happy accidents. American engineer Percy Spencer was working for Raytheon building magnetrons for radar sets when he noticed that a Mr. Goodbar in his pocket started to melt. Spencer realized it had been the microwaves that had done the trick. The first food he deliberately cooked? Popcorn of course.

　　微波炉（1945年）

　　微波炉的发明是最巧妙的一起“事故”。当时，美国工程师珀西•斯宾塞正为雷声公司的雷达装置制造磁控管，他发现口袋中的巧克力受热融化。斯宾塞意识到是微波导致的。那么他有意用微波烹饪的第一种食物呢？当然就是爆米花。