Gravity is working in reverse? 🔊💧 (Stroboscopic Effect) #science

本站添加: 2026-05-27

[00:00:00]This looks like gravity is working in reverse, but it's just an optical illusion called the stroboscopic effect.

[00:00:06]A speaker vibrates the water hose exactly 24 times per second, forcing the water into a wave. The real [music] secret is the camera. It records at 24 frames per second. Because the camera speed and sound frequency match perfectly, the water appears [music] frozen in midair. When the frequency changes to 25, it flows forward. At 23, it literally flows backward. Subscribe for more mind-blowing science.