This Happens Because Of Cameras

追加: 2026-05-16

[00:00:00]Why do some helicopters look like their blades aren't moving? They're actually [music] spinning extremely fast, and the reason is the camera. Most cameras record in frames [music] per second, like 30 or 60 images every second. So, when the rotor spins, it sometimes lines up perfectly with those frames, making it look like the blades have frozen.