The inventions of the hemispherium and the hemicyclium are attributed to Berosus (356-323 BCE), a Chaldean priest and astronomer who brought these types of sundials to Greece. Both dials use the shape ...

So why do shadows matter? Well, before clocks were invented, the ancient Egyptians used sundials to tell the time with shadows – three and a half thousand years ago! We may have technology to ...

New York Hall of Science, 2002. For information on making other sundials, see Liftoff to Space Exploration: A Space Sciences Project. Is the tropical humidity giving you another "bad hair day"?

Exhibits include sundials and shelf clocks, chronometers and character watches, and everything in between. Discover one the largest collections of American-made timepieces in the world.

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The invention of the alarm clock revolutionized the way people managed time. Today, we take for granted the convenience of ...

It’s a science teacher’s dream, the northern lights rolling right through their backyard. “Just walking out… the feeling was ...

Back when clocks were first invented, people mainly used sundials. To differentiate, they started saying “of the clock” to specify the time by a clock. So next time you check the time ...

Over the last forty years, the singular artist Guy Maddin has been celebrated as one of Canada’s most well-known and idiosyncratic filmmakers. Hailing from Winnipeg, Maddin’s films are a genre unto ...

Indigenous Australians first tracked it through changes in the land and the stars in the sky, seeing time as a cyclical, ...

Swiss luxury watchmaker Maximilian Busser and Friends (MB&F) has just released a new collaboration with engraver Eddy Jaquet, ...

How you can tell the time of day from shadows cast by the sun. The sun is our main source of light. Nuclear reactions at the core of the sun create energy in the form of heat and light. The light ...