De quoi est fait heron’s aeolipile
A ball spun by jets of steam — the oldest steam turbine.
- Bronze steam boiler — a pour partie. A vessel of boiling water.
- Hollow bronze sphere — a pour partie. It rotates on tubular axles.
- Bent steam nozzles — a pour partie. Jets of steam spin the ball.
- Reaction force — utilise. Jets of steam spin the ball by reaction force.
- Combustion — utilise. A fire boils the water in the cauldron.
- Bronze — est fait de. The aeolipile is a bronze ball.