This article speculates on the safety of microwaves due to the radiation that they emit. I read this with a grain of salt but it was still interesting to me. I never really thought of any of the potential side effects of microwave radiation so it was interesting to see that it was a concern to some people.
https://muditalab.com/the-two-sides-of-the-story-is-microwave-radiation-harmful-de4b06fcda78
This site shows the top 14 best travel coffee mugs (with insulation as a big factor in their ranking). It talks about the different insulation materials like stainless steel that helps the coffee mugs keep the coffee warm or cold!
This video shows a mpemba effect demo where they dump hot water and cold water out onto their freezing cold deck and the hot water freezes before the cooler water does. It’s a neat demo with a really cute kid.
This page gives some techniques for the most effective ways to cool hot coffee stating that putting in ice cubes, pouring the coffee over sugar, and putting it into a larger mug are all really effective ways to cool it quickly.
https://www.tutorialsave.com/how-to-cool-down-coffee/
