A 2000th of a second may seem very fast, but it is just barely fast enough to stop the action of water cascading down a hillside in the Wasatch Mountains. The interesting thing about this image is that even a split second later the whole image would have changed to something similar but completely different. The speed of the camera lets us see into the nearly invisible world that is all around us. We seldom see any detail at all in a stream or waterfall. We get the impression that there is movement but the complexity of that movement is completely lost by our own eyes. It takes the high speed shutter of the camera to freeze that movement in a way we can appreciate what is going on.
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