The first uses of the hypotenuse theorem came centuries before Pythagoras, unknown exactly when it came to be. Pythagoras just happens to be credited to be the first to document it.
http://5010.mathed.usu.edu/Fall2021/BDzierzon/history.html
Edit: Noting that the http site doesn’t seem to load in Android WebView mode, fuck Google Chrome, it loads in Firefox though.
Granted that this isn’t microwave related, but it’s definitely popcorn related. Have you ever heard of a popcorn cannon? They’re designed to even be able to pop regular corn right off the cob…
https://youtube.com/watch?v=WZCR2t5C11g