This experiment allows you to explore 4-dimensional space using your webcam. Once you’ve given this page permission to access your webcam (up there ↑) try slowly waving your arm before undertaking more radical experimentation in the 4th dimension.
Screenshots of 4-dimensional weirdness can be sent to @themaninblue.
*If you can't see the permission dialog you may need to use Chrome or Firefox Nightly.
Send weird 4-d screenshots to @themaninblue