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Public Speaking and Microwave Invention by Nguyễn Quang Minh is a document available to read on EtoBox.

What is Public Speaking and Microwave Invention about?

The document discusses the invention of the microwave oven. It begins by describing how Percy Spencer, an engineer, discovered that a chocolate bar in his pocket had melted near some radar equipment he was working on. Spencer realized this was due to the microwaves emitted by the equipment. He conducted further experiments, including popping popcorn near the radar and causing an egg in a kettle to explode. This led Spencer to develop the first microwave oven in 1946 at a restaurant in Boston. The first micr

Author

Nguyễn Quang Minh

Language

EN