Shining Light Between Drops Makes Thunderstorm Seem Like a Drizzle

The gist of it ...

"The system uses a camera to track the motion of raindrops and snowflakes and then applies a computer algorithm to predict where those particles will be just a few milliseconds later. The light projection system then adjusts to deactivate light beams that would otherwise illuminate the particles in their predicted positions."

It is closely related to this:

http://www.youtube.com/watch?v=_PkgQQqpH2M&feature=playe...

That's the video of a stream of water frozen in time.