Kaleidoscope and solar panel: what they have in common

1. Step 1. Kaleidoscope — has part — Mirror. Mirrors.
2. Step 2. Mirror — is part of — Reflecting telescope. The primary mirror.
3. Step 3. Reflecting telescope — includes — Space telescope. Hubble is a reflector.
4. Step 4. Space telescope — has part — Solar panel. Solar panels.

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