Feed my darlings!

Isley
Harjar
Aeolus
Bloodfeast
and don't forget Freddie!


Some of you may have noticed me coughing and hacking in class this past week. Well, as all sick boys are wont to do, I drank hot water. And since my parents are unwilling to invest in a water heater, I have to rely on my trusty microwave. It lives in the corner of the kitchen.

The inside of the microwave contains a glass plate that rotates to ensure that the food (or water) inside the microwave is heated evenly. Last year in chemistry, we learned how a microwave works, so go dig out your notes.

Sorry peoples, no exciting noises in this one.

While the cup with the water moves in a circle, its total angular motion in its period (approximately 10 seconds) is zero as it has the same initial and final positions. Also, according to the reference frame of the glass plate, there is no motion whatsoever of the cup as it stays in one place (static friction). But when an outside observer looks into the microwave, the cup (and the glass plate) are experiencing uniform circular motion!