Ancient history

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What ancient greek invented?

Archimedes (287–212 BCE):

- Compound pulley

- Archimedes screw (water pump)

- Heat ray (large mirrors used to focus sunlight and set ships on fire)

- Odometer (mechanical device that records the distance traveled by a wheeled vehicle)

Heron of Alexandria (10–70 CE):

- Aeolipile (earliest steam engine)

- Heron's fountain (siphon pump)

- Clepsydra (mechanical water clock)

- Dioptra (surveying instrument)

- Automaton (steam-powered mechanical puppet)

Ctesibius (285–222 BCE):

- Force pump (first piston pump)

- Water organ (hydraulis)

- Compressed air gun (arquebus)

Philo of Byzantium (280–220 BCE):

- Screw press (used to extract olive oil)

- Odometer (an advanced, gear-driven odometer)

- Alarm clock (water clock that rings a bell)

- Automatic theater (puppets moved by hidden mechanisms)

Eratosthenes of Cyrene (276–194 BCE):

- Sieve of Eratosthenes (algorithm for finding prime numbers)

- Measurement of Earth's circumference

- Armillary sphere (astronomical model representing the celestial sphere)

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