On Saturday, 29 December 2018 13:43:13 UTC, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago.

I bought a small apple tart at a stall at Manchester Airport the other day and the assistant said she was going to put it in the oven for 3 seconds. I asked how powerful the oven was and she said 1,900 watts. My tart was certainly warm - I didn't observe exactly how long she gave it!