Tone holes e oil well: o que têm em comum

1. Passo 1. Tone holes — faz parte de — Flauta. They change the length of the sounding air column.
2. Passo 2. Flauta — é feito de — Osso. The oldest flutes (Hohle Fels) were carved from bird bone and ivory.
3. Passo 3. Osso — é material para — Toothbrush. Addis’s toothbrush has a bone handle.
4. Passo 4. Toothbrush — é feito de — Nylon. Nylon bristles (1938).
5. Passo 5. Nylon — é feito de — Crude oil. The raw material is petrochemical.
6. Passo 6. Crude oil — utiliza — Oil well. Oil is extracted from wells.

Abrir Evothings