Awesome, but they need to get rid of the strobes for filming and sync the speed with the camera shutter speed. I could barely see what's happening.

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Should have been filmed with a faster shutter speed - smooth motion blur like that looks great and natural, but is hell to blend in with other imagery with a green screen, like the blurry arms at 0:14.

And that's why you have a slowest "flash sync speed" - if you shoot at faster shutter speeds than the flash sync speed (typically 1/200s-1/250s), the whole sensor wouldn't be exposed at once, and the lower part of the frame would be dark.
*related=http://videosift.com/video/High-Speed-video-of-Canon-DSLR-Shutter-Smarter-Every-Day
*related=http://videosift.com/video/Ultra-High-Speed-Video-of-Nikon-D3-Shutter-Action

I'll suggest *timeshift and *engineering - it may be real time, but with very carefully chosen lighting, framerates and shutter speeds..

From description

In person uses a strobe light to get this effect. For this video, rather than using a strobe, the camera was set to a very short shutter speed (1/4000 sec) in order to freeze the spinning sculpture.

How much of that phenomenon is a function of the shutter speed on the recording camera? Does it occur in person as well?

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It's not really technically * timeshift as such, as the video isn't slowed down -the vibrations of the strings are frozen from high shutter speeds.
Fascinating stuff, though.

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>> ^radx:
http://videosift.com/video/How-is-this-Helicopter-flying <IMG class=smiley src="http://cdn.videosift.com/cdm/emoticon/wink.gif">


Thank you

>> ^messenger:

If this is the real deal, then how come I can see the sun through the "planet"? Aren't planets opaque?

Lens flare - the sun happens to be rather bright! Is also very likely to be residual afterimages on the sensor - it's hard to properly handle the vast amounts of light involved.

I took a couple of images myself with my SLR - had I not used three layers of ND-filters as well as post-processed the Raw files, I would have had to use shutter speeds of about 1/8000000th of a second - a thousand times faster than my camera is capable of.