… in a dark room against a wall makes cool patterns and animations.
Laser projection of a leaf against a wall
Do try this at home. It’s really cool, and you need a video to show the animation. Our theory is that the little circles are cells. Initially when laser is shined, we observed a lot of moving and shuffling. Eventually, layers and layers of cells die. The result is a bit like windshield wipers and the drying water it leaves behind.
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