Propulsor (atlatl) e industrial robot: o que têm em comum
- Passo 1. Propulsor (atlatl) — utiliza — Spear. It throws darts.
- Passo 2. Spear — evoluiu para — Lança de fogo. The fire lance was a spear with a tube of gunpowder — the first step to firearms.
- Passo 3. Lança de fogo — é feito de — Paper. The barrel of a fire lance is a paper or bamboo tube.
- Passo 4. Paper — é material para — Tear de Bouchon. The program is a perforated paper tape.
- Passo 5. Tear de Bouchon — utiliza — Program control of a machine. A perforated tape set which threads to raise.
- Passo 6. Program control of a machine — é utilizado em — Industrial robot. The movements are recorded in a program.