3-D Glasses

Different exhibits were there on the science mobile. One of these is 3D Glasses. We watched a video clip and we noticed how it differs from what we usually see on TV using 3D glasses. We held the 3-D glasses near our eyes (the blue glass on our right eye) and viewed the video clip through them.
So, what happened? The video clip is an anaglyph, a stereoscopic motion or still picture in which images are made up of two color layers, but offset with respect to each other to produce a depth effect.
The picture in the video clip contains two differently filtered colored images, one for each eye. The filters on the glasses allow only one image to enter each eye, and your brain fuses this into perception of a three-dimensional scene or composition.