Brion Gysin and Ian Sommerville invented the Dreamachine, which I first heard about at last week’s Film Love at Eyedrum. It uses a record player to spin a cylinder with patterns cut in it. With a light inside, it makes a strobe for drug-free psychedelia. I found an online Dreamachine that makes a similar effect. Move close to the monitor, close your eyes, and it’s good for a few seconds of trippy colors. Mind your epilepsy.