Very cool! I’ll check it out! Thanks

The sources on wikipedia say it was Percy Spencer, an American self-taught engineer. He noticed a Mr. Goodbar candy bar he had in his pocket started to melt from microwaves from an active radar set he was working on. The first food deliberately cooked was popcorn, and the second was an egg, which exploded.

Here are the direct sources: https://web.archive.org/web/20110709081022/http://www.gallawa.com/microtech/history.html https://www.youtube.com/watch?v=4h1ESUz2H3E

If you have a link to the hamster experiment I would love to read more. I might dive into a microwave research hole today! lol

Engineering is a branch of Science. Specifically, Engineering is applied science. For example, scientists discovered that microwaves existed. Engineers made them heat up your food. How did we make safer and better microwaves appliances? Engineers applied the scientific method and iterated on the design and performed tests.

To say engineering is separate from the science is incorrect.