Strobe Lights & Water Drops

Today's trippy science videos: strobe lights affecting water drops. By shining a strobe light (a light that's turned on and off very, very rapidly) on a stream of water, strange effects occur. First, a display at an MIT museum showing water droplets under a green strobe light:

And now the really cool thing, Nate True's Time Fountain, an art installation that appears to freeze drops in mid-air due to the strobe effect, and even reverse them, making them appear to rise, among other things.