Foucault's pendulum, for road trips.

[Keith&Co.]

Frightening discovery today. My kid did a unit on Foucault's pendulum.

Now he's singing a song. "270 Degrees on the floor, 270 degrees. Take one down, swing it around, 269 degrees on the floor."

I can never take him on a long car trip again....

 

[Perspicuo]

 

[dockeen]

Demand that units of radians be used.