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History of timekeeping devices

technology Maturity 9-11

People have always wanted to know the time.

Summer Solstice Sunrise over Stonehenge 2005.jpg
Summer Solstice Sunrise over Stonehenge 2005.jpg
Long ago, they looked at the sun. They used shadows to tell time.
Leiden - Rijksmuseum van Oudheden - Egyptian antiquities - Ancient Egyptian sundial.jpg
Leiden - Rijksmuseum van Oudheden - Egyptian antiquities - Ancient Egyptian sundial.jpg
Some used water to make clocks. Now we use phones. How do you tell time?

54 words
🖼️ Images & Media (17)
File:Orologio a sabbia - Museo scienza tecnologia Milano 03303 01.jpg
Orologio a sabbia - Museo scienza...
File:Summer Solstice Sunrise over Stonehenge 2005.jpg
Summer Solstice Sunrise over Stonehenge 2005.jpg
File:Leiden - Rijksmuseum van Oudheden - Egyptian antiquities - Ancient Egyptian sundial.jpg
Leiden - Rijksmuseum van Oudheden -...
File:Vrihat samrat yantra, JantarMantar, Jaipur, Rajasthan.jpg
Vrihat samrat yantra, JantarMantar,...
File:Water clock, Egypt, Ptolemaic Period, reign of Ptolemy II, 285-246 BC, limestone, carnelian beads - Oriental Institute Museum, University of Chicago - DSC07912.JPG
Water clock, Egypt, Ptolemaic Period,...
File:Aerides Athens 2.jpg
Aerides Athens 2.jpg
File:Chinese incense clock.jpg
Chinese incense clock.jpg
File:Ambrogio Lorenzetti 003-detail-Temperance.jpg
Ambrogio Lorenzetti 003-detail-Temperance.jpg
File:Water clock (representing a clock at the royal court in Paris, c.1250).png
Water clock (representing a clock at the...
File:Salisbury Cathedral 2012 12.jpg
Salisbury Cathedral 2012 12.jpg
File:Fusee for clocks (Leonardo da Vinci).png
Fusee for clocks (Leonardo da Vinci).png
File:Карманные часы Хенляйна.jpg
Карманные часы Хенляйна.jpg

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📚 Content adapted from Wikipedia | Readability: FK 13.6 | Vital Level 5