Tom Scott has created a video that works in both 2D and in 3D simultaneously. To view the 3D effect, wear or hold a sunglasses lens over your right eye, and it works best on a larger display with the video playing at a high frame rate. Unlike other 3D videos, this one doesn't look strange when you're not wearing glasses, thanks to the Pulfrich Effect. How does it work? Basically, when you wear sunglasses over one eye, the image on the screen is perceived by that eye slightly more slowly, and since 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 then combines the two slightly different images to create a 3D-like effect. Click here to view the first image in today's viral picture gallery. Continue reading for the five most popular viral videos today, including one of a floating Death Star.