🛠️ Invention or technique

Heron's fountain

Fuente de Herón

Date
c. 60 CE · confidence low
Place
Alexandria, Egypt
Credited to
Hero of Alexandria
Field
Cosmos & Earth

What it is

A hydraulic machine by Hero of Alexandria that produces a water jet using the pressure of enclosed air, with no pumps or external moving parts; it is still used today in classrooms to demonstrate hydraulic and pneumatic principles.

A different device from the aeolipile, already catalogued; both are inventions by Hero based on different principles (hydraulic pressure versus steam).

What it led to

  • Modern educational demonstrations of hydraulics and pneumatics
  • Hero's tradition of automata and hydraulic toys

Links

Sources✓ verified 2026-09-28