Ancient Greek Machines for Moving Heavy Loads

Greek engineers (c. 300–100 BC) invented fundamental simple machines for lifting and transporting heavy loads:

• Compound Pulley (Polyspaston): Archimedes (c. 250 BC) — multiple sheaves multiplying force. Described in Mechanica. Used for ship loading, construction.
• Archimedes' Screw (Water Screw): Helical surface in cylinder — lifts water/granular material. Irrigation, dewatering mines, sewage. Still used.
• Winch & Capstan: Rotating drum + rope/cable. Human/animal/treadmill powered. Vertical (winch) or horizontal (capstan) axle. Ship anchor, construction.
• Crane (Kranion): Boom + pulley system. Powered by treadwheel (human hamster wheel) or capstan. Vitruvius (1st c. BC) details Greek cranes (10–15 ton capacity). Used for temples, harbors.
• Lever & Roller Systems: Archimedes: "Give me a place to stand..." — theoretical basis. Practical: levers for positioning stones, log rollers for transport.
• Hydraulic Press (Precursor): Archimedes described fluid pressure principles; Hero of Alexandria (1st c. AD) built force pumps, siphons.

Key Figures: Archimedes (Syracuse, 287–212 BC) — theorist & inventor. Ctesibius (Alexandria, c. 285–222 BC) — pneumatics, pumps. Hero (Alexandria, c. 10–70 AD) — automated devices, steam engine (aeolipile).

These machines built the Parthenon, Pharos Lighthouse, Hellenistic cities — and laid groundwork for Roman engineering.