Bra hook-and-eye clasp and transformer: what they have in common

1. Step 1. Bra hook-and-eye clasp — is part of — Bra. Hooks on the back.
2. Step 2. Bra — is made of — Silk. Mary Phelps Jacob’s bra was made of silk handkerchiefs.
3. Step 3. Silk — works like — Nylon. Nylon was created as a substitute for silk.
4. Step 4. Nylon — is material for — Electric toothbrush. The bristles are nylon.
5. Step 5. Electric toothbrush — uses — Electromagnetic induction. Wireless charging by induction.
6. Step 6. Electromagnetic induction — is used in — Transformer. Induction between the windings.

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