This video clip was taken from the 1980 award winning series Cosmos. It cleverly shows you the shadow caused by a 4 dimensional shape. The presenter Carl Sagan, the famous astrophysicist and astronomer, also explains how our 3 dimensional objects would appear to ‘flatland’ – an imaginary 2 dimensional world..
Thought provoking stuff from the late, great Carl (…more videos from him coming soon)
4 dimensional animation …very weird!
The tesseract is the 4-dimensional analog of a 3-dimensional cube. When it is rotated around a 4D axis and projected from 4D to 3D, it creates an interesting animation of a shape-changing 8-cell in 3D while it’s shape doesn’t actually change in 4D.
In mathematics, the fourth dimension is treated like the first three dimensions but the human mind has difficulties trying to come to grips with shapes in four spatial dimensions.