Tuning fork prongs and syringe: what they have in common

1. Step 1. Tuning fork prongs — is part of — Tuning fork. Two vibrating tines.
2. Step 2. Tuning fork — uses — Resonance. A natural frequency.
3. Step 3. Resonance — is used in — Flute. Resonance of the air column.
4. Step 4. Flute — is made of — Bone. The oldest flutes (Hohle Fels) were carved from bird bone and ivory.
5. Step 5. Bone — is material for — Needle. The first needles with an eye were carved from bone.
6. Step 6. Needle — is part of — Syringe. A hollow needle.

Open Evothings