#10 – Microwave Oven
The story about Percy Spencer, a navy radar specialist, is quite an interesting one. Namely, he was an orphan that never managed to finish grammar school, even though he was later on considered a self-thought genius. While working in the navy, he was experimenting with some microwave emitters, when he felt that the chocolate bar he had in his pocket had started to melt. He instantly recognized the potential for microwave ovens.