Revolution counter and kite: what they have in common

1. Step 1. Revolution counter — is part of — Anemometer. It converts revolutions into speed.
2. Step 2. Anemometer — has part — Cups. Hemispherical cups turned by the wind.
3. Step 3. Cups — is part of — Bra. Cups.
4. Step 4. Bra — is made of — Silk. Mary Phelps Jacob’s bra was made of silk handkerchiefs.
5. Step 5. Silk — is material for — Kite. Chinese kites were silk.

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