Жауабы: Microwaves and the Candy Bar

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A smart cat

My Snowball is a wonderful cat. I don’t know of any other cat that loves to watch Sesame Street. He will also come running up to the TV if he _____ HEAR ______ a baby crying or little kids playing. He can’t stand TV commercials! Anytime a commercial comes on he turns his head to the side and so he ____ NOT HAVE ______ to watch the commercial. When the show is back on the air, he will start watching the show again. It was then that I _____ FIND _______ out that when a commercial is on, the volume goes up a bit, and this is his signal to turn away. When the volume goes down then the commercial is over. Smart cat, I started to do the same thing.

Creative thinking

Percy Spencer was an American physicist and inventor. He was the chief of the power tube division of the Raytheon Company. Once he noticed that microwaves from the radar set he ____ WORK _______ on had melted the candy bar in his pocket. It had been known that microwaves generate heat. But he was the ____ ONE ______ one to think of using this heat to cook food. He received a patent in 1950, and Raytheon developed the idea ___ FAR ______ for commercial and industrial use. In a sign of things to come, popcorn was what Spencer and _____ HE _____ colleagues cooked with microwaves. Spencer’s creative thinking turned a routine observation into a technological breakthrough.