3 ms·

I'd seen this before: http://www.instructables.com/id/Turn-cell-phone-and-tablet-in-3D-hologram/ http://www.instructables.com/id/Turn-cell-phone-and-tablet-i..

I'd seen this before: http://www.instructables.com/id/Turn-cell-phone-and-tablet-in-3D-hologram/ http://www.instructables.com/id/Turn-cell-phone-and-tablet-i... ..but it uses a prism shape, not a cone.

pbhjpbhj 9y ago
Mentioned in the video of the OP at 38s+.