Hellenistic engineering

ancient analog computer designed to calculate astronomical positions

thumb|Hydraulics and other studies thumb|An open channel, with a uniform depth. Open-channel hydraulics thumb|Illustration of hydraulic and hydrostatic, from the "Table of Hydraulics and Hydrostatics", from Cyclopædia, or an Universal Dictionary of Arts and Sciences, edited by [[Ephraim Chambers, 1728, Vol. 1]]

meteorological instrumentation used for showing the direction of the wind

machine which automatically dispenses beverages, food or non-food products to customers after a payment

model of objects in the sky

clock with special mechanisms and dials to display astronomical information

thumb|right|The gnomon is the triangular blade in this sundial.

tower with a large clock that can be read from afar

thumb|An illustration of Hero's aeolipile An aeolipile, aeolipyle, or eolipile, also known as a '''Hero's (or Heron's) engine', is a simple, bladeless radial steam turbine which spins when the central water container is heated. Torque is produced by steam jets exiting the turbine. The Greek-Egyptian mathematician and engineer Hero of Alexandria described the device in the 1st century AD, and many sources give him the credit for its invention. However, Vitruvius was the first to describe this appliance in his De architectura'' ().

thumb|Illustration of a simple three-axis gimbal set; the center ring can be vertically fixed

thumb|Animation of an anchor escapement, widely used in [[pendulum clocks]]

pipe organ powered by water

hydraulic machine invented by Heron of Alexandria

flexible tube used for delivering water or foam at high pressure, to fight fires

thumb|Graphic reconstruction of the dioptra, by Venturi, in 1814. (An incorrect interpretation of Heron's description)

1st-century BCE musical instrument unearthed in Greece