very little is known of their history. It is known that the ancient Chinese developed a form of sundials c. 800 BCE, and the sundials eventually evolved...

are several different types of sundials. Some sundials use a shadow or the edge of a shadow while others use a line or spot of light to indicate the time...

time of day. Hence there are no hour lines on the dial and the time of day is read only on the ellipse. As with most sundials, analemmatic sundials mark...

oscillatory processes, such as the swing of pendulums. Oscillating timekeepers are used in modern timepieces. Sundials and water clocks were first used in...

Many sundials bear a motto to reflect the sentiments of its maker or owner. Be as true to each other as this dial is to the sun. Begone about Thy business...

1088/0143-0807/17/3/001. Anthony John Turner (1993). Of Time and Measurement: Studies in the History of Horology and Fine Technology. Ashgate Publishing Company...

the hours. Sundials can be horizontal, vertical, or in other orientations. Sundials were widely used in ancient times. With knowledge of latitude, a...

Herodotus's attribution of the invention of the sundial to the Babylonians in 430 BCE, the earliest known sundials were simple gnomons of Egyptian origin invented...

Mayall, Margaret W., Sundials: Their Construction and Use, Dover Publications, Inc., 1994, ISBN 0-486-41146-X Waugh, Albert E., Sundials: Their Theory and...

Simson at Kirktonhall, West Kilbride. A Scottish Sundial at Ardrossan's Civic Centre Sundials of Scotland - a website for Scottish sundials by Dennis Cowan...