Primer (movie)
Aaron and Abe work on a machine that will make an object weigh less. This would happen by changing the effects of gravity. The machine seems to work as planned, but it has a side effect. An object ( a Weeble) left in the machine uses 1300 times the amount of time the machine was turned on for. Abe thinks that objects inside the box travel over and over, from the time the box was turned on to the time it was turned off.