Here's a crazier version: https://vimeo.com/4041788 The camera takes frames at 30 fps. But each frame is only exposed for 1/4000 of a second, which lets you see the string as if it is holding still during the frame. And finally, the camera has a "rolling shutter" so the bottom of the frame is captured about 1/50th of a second after the top. This creates the visible wiggle in each frame, as the string vibrates several times as the frame is recorded from top to bottom.