Yo-yo and camera: what they have in common

1. Step 1. Yo-yo — uses — Angular momentum. Rotation.
2. Step 2. Angular momentum — is used in — Gyroscope. The rotor keeps the direction of its axis.
3. Step 3. Gyroscope — is part of — VR headset. Head tracking.
4. Step 4. VR headset — evolved from — Stereoscope. Two images for two eyes — the idea of the stereoscope.
5. Step 5. Stereoscope — uses — Camera. Stereo pairs of photographs.

Open Evothings