Sundial
device that tells the time of day by the apparent position of the Sun in the sky From Wikipedia, the free encyclopedia
device that tells the time of day by the apparent position of the Sun in the sky From Wikipedia, the free encyclopedia
A sundial shows the current solar time during the day. It does this because the sun appears to move through the sky. At different times in the day when the sun is shining, a shadow is cast in different places on the dial. A person marks the dial with the time at a certain shadow. This lets users easily see the time. There are a few commonly seen designs, such as the 'ordinary' or standard horizontal garden sundial. However, sundials can be designed for any surface where a fixed object casts a predictable shadow. They may be horizontal or vertical or tilted.
Ancient Egypt had sundials. Other cultures developed them further, including the Greeks and Romans.
Definitions from Wiktionary | |
Media from Commons | |
News stories from Wikinews | |
Quotations from Wikiquote | |
Source texts from Wikisource | |
Textbooks from Wikibooks | |
Learning resources from Wikiversity | |
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.