Control bar and aerosol can: what they have in common

1. Step 1. Control bar — is part of — Hang glider. A control bar with which the pilot shifts their weight.
2. Step 2. Hang glider — is made of — Polyester. The sail.
3. Step 3. Polyester — evolved from — Nylon. The next synthetic fibre.
4. Step 4. Nylon — is a kind of — Polymer. A polyamide.
5. Step 5. Polymer — is material for — Hair spray. The hairstyle is held by the polymer film left once the solvent evaporates.
6. Step 6. Hair spray — uses — Aerosol can. Hair spray comes out of an aerosol can as fine droplets, so it settles as an even film.

Open Evothings