Abstract
Many ancient sundials are found on the facades of old churches and other old houses. Beautiful examples are found in [3, 4]. Silent and often hardly noticed, they tell of a past age when man measured time using sundials. Even clocks and watches were set by the sun until the end of the 19th century. Today, sundials reappear in gardens or on the facades of houses mainly as a decorative element. Often, these sundials are not very accurate. From time to time, a look at one’s watch confirms not insignificant differences. On the other hand, there are sundials whose accuracy surprise us.
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References
H. Schilt: “Ebene Sonnenuhren: verstehen und planen, berechnen und bauen”, 9. Auflage, Felix Solis Tempus, Basel, 1997.
Ch. Blatter: “Von den Keplerschen Gesetzen zu einer minutengenauen Sonnenuhr”, Elemente der Mathematik (49), 155–165, 1994.
R. Rohr: “Sundials: History, Theory, and Practice”, University of Toronto Press, Toronto, 1970.
A. Zenkert: “Faszination Sonnenuhr”, Verlag Harri Deutsch, 2. Auflage, Thun, 1995.
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© 1997 Springer-Verlag Berlin Heidelberg
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Oettli, M., Schilt, H. (1997). Computing Plane Sundials. In: Solving Problems in Scientific Computing Using Maple and MATLAB®. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-97953-8_27
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DOI: https://doi.org/10.1007/978-3-642-97953-8_27
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