Two! one to change the light bulb and the other to rotate the universe!
None. Once the bulb goes out, they replace the house.
Just two. One to politely ask and the other to politely help.
Only 1, but it takes them 15 episodes to do it.
1
The torque
A physicist is atoms studying themselves, while a biologist is cells that study themselves.
Two. One to hold it in place, another to rotate the universe around it.
Two, one to hold the bulb and one to rotate the universe.
He thought he saw the rotating car washer as a tornado