Bell and aerosol can: what they have in common

1. Step 1. Bell — uses — Resonance. The sound.
2. Step 2. Resonance — is used in — Valve trumpet. Resonance of the tube.
3. Step 3. Valve trumpet — has part — Valve. Valves.
4. Step 4. Valve — is part of — Aerosol can. A valve.

Open Evothings