Spoke and telescope: what they have in common

1. Step 1. Spoke — is part of — Wheelchair. Spoked wheels.
2. Step 2. Wheelchair — has part — Hub motor. Powered wheelchairs.
3. Step 3. Hub motor — is part of — Hoverboard. Hub motors.
4. Step 4. Hoverboard — has part — Gyroscope. Gyroscopes keep the balance.
5. Step 5. Gyroscope — is part of — Space telescope. Pointing gyroscopes.
6. Step 6. Space telescope — is a kind of — Telescope. A space telescope is a telescope above the atmosphere, so air does not blur the view.

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