Nitroglycerin e heron’s aeolipile: o que têm em comum

1. Passo 1. Nitroglycerin — é material para — Dinamite. Nitroglycerin in a porous filler.
2. Passo 2. Dinamite — evoluiu de — Gunpowder. A replacement for gunpowder in mining.
3. Passo 3. Gunpowder — é utilizado em — Rocket. The first rockets were powered by gunpowder.
4. Passo 4. Rocket — utiliza — Reaction force. A rocket moves by reaction force.
5. Passo 5. Reaction force — é utilizado em — Heron’s aeolipile. Jets of steam spin the ball by reaction force.

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