Self-siphoning chain

Note to self: get some of this beaded chain from a hardware store.

Celsius temperature reference scale

Notes for a reference sheet I'll be making for my physics students later this summer:

-20°C: inside a freezer
0°C: water freezes/ice melts
4°C: inside a refrigerator
10°C: winter in Davis
20°C: comfortable and a bit cool
25°C: comfortable and a bit warm
30°C: time to hit the pool
37°C: inside your mouth
40°C: summer in Davis
50°C: a very hot day in Death Valley
100°C: water boils/steam condenses
175°C: baking cookies
205°C: baking frozen pizza

Physics at the Truman Household

(We've been running the air conditioner upstairs, but not downstairs.)

*going downstairs*

"Wow, it's hot down here!"

"Interesting. Perhaps temperature is inversely proportional to elevation."

"Whaaaaat?"

"As you yourself observed, we went downstairs and it got warmer."

"How on earth would that work?"

"Conservation of energy, of course. We decrease our elevation and thus lose potential energy, so thermal energy increases as a result."

"Right."

"Trust me; I'm a physics teacher. I know how these things work."