Top spindle and greenhouse: what they have in common

1. Step 1. Top spindle — is part of — Spinning top. A rod for spinning it up.
2. Step 2. Spinning top — works like — Gyroscope. A gyroscope is a top in a gimbal.
3. Step 3. Gyroscope — is part of — Space telescope. Pointing gyroscopes.
4. Step 4. Space telescope — has part — Solar panel. Solar panels.
5. Step 5. Solar panel — has part — Window glass. Tempered cover glass.
6. Step 6. Window glass — is part of — Greenhouse. It lets light in and holds heat.

Open Evothings