- YouTuber Tom Scott made a video that works in both 2D and in 3D.
- To see the 3D effect, wear or hold the lens for a pair of sunglasses over your right eye. It works best on a bigger screen and with the video playing at a high frame rate.
- Unlike other 3D videos, this one doesn't look weird when you're not wearing glasses.
- The video works thanks to the Pulfrich Effect, as Scott explains.
- When you wear sunglasses over one eye, the image on the screen gets to that eye slightly more slowly.
- Because the camera is constantly moving, it's as if you're getting a slightly delayed image to the eye with the lens over it.
- Your brain combines the two slightly different images going to each eye, creating a 3D effect.
- Watch the video below. Make sure you have sunglasses to make it work.
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