20 Fun and Fascinating Science Experiments and Optical Illusions You Won’t Believe

How about the Build a Levitating Water Fountain with the Stroboscopic Effect experiment1? In this experiment, you can create an optical illusion of water falling "up" by combining a DIY fountain with a strobe light. A strobe light is a device that flashes light at a certain frequency. When you adjust the frequency of the strobe light to match the frequency of the water drops, you can make the water appear to freeze, fall slowly, or even rise up! This is because the strobe light only illuminates the water drops at certain moments, creating a series of snapshots that trick your brain into seeing motion that is not really there. This is called the stroboscopic effect and it is also used in animation and movies to create the illusion of movement. You can learn more about this experiment and how to do it at home by following this link: 1. Have fun!