Gravity fountain, synchronizing light flashes with the rate at which water drops are ejected a

stroboscopic illusion is created of liquid

levitating or moving upwards

https://t.co/2jV5KuGZXU https://video.twimg.com/amplify_video/1775489438237306880/vid/avc1/480x854/XPxH4gEFXy3UH-qL.mp4?tag=14