I suggested an idea for a backyard geothermal generator in a comment a few months ago and got shut down because it would be too costly to drill the hole. But hey now! This microwave drill might do the trick!

Hmm. Are magnetrons and gyrotrons the same thing? Probably not. So we can't rip apart an old microwave oven and start drilling holes out back just yet. Damn.

https://news.ycombinator.com/item?id=27777665