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Vitruvius
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Vitruvius
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Articles about Vitruvius
Sundial
The sundial is the earliest timekeeping device, reading the time of day from the shadow that a gnomon casts in the sun's rays. Egyptian obelisks and portable shadow clocks led to the hemispherical dials and hemicycles of the Greeks, to Vitruvius' rules of dial…
Roman Aqueducts
Roman aqueducts were gravity-fed water-supply systems that carried spring water into cities across the empire,…
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Gnomon
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2
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sundial
Object
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Analemma
Concept
2
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Equation of time
Concept
2
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Ibn al-Shatir
Person
2
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Tower of the Winds
Place
2
M
Muwaqqit
Concept
2
R
Rome
Place
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SundialThe sundial is the earliest timekeeping device, reading the time of day from the shadow that a gnomon casts in the sun's rays. Egyptian obelisks and portable shadow clocks led to the hemispherical dials and hemicycles of the Greeks, to Vitruvius' rules of dial…
Roman AqueductsRoman aqueducts were gravity-fed water-supply systems that carried spring water into cities across the empire,…