Maxwell's Entropy app for iPhone and iPad

This game is based on a thought experiment created by the physicist James Clerk Maxwell “to show that the 2nd law of Thermodynamics has only a statistical certainty."

You will see small particles flying through the air, with an electric fence in the middle of the screen, a piston on each side, and a brick at the bottom of the screen. Your goal is to move the brick to the right side. To do this, you have to make the particles hit the left piston more often than the right by activating the electric fence at exactly the right time, which sends the particles to the left side. But beware: every time you activate the electric fence, you are draining the battery.

The final score is based on the amount of battery life remaining and the total time spent to clear the level.