Sabtu, 20 Oktober 2012

2012 June 26: A Sundial that Shows Solstice


See Explanation.  Clicking on the picture will download
 the highest resolution version available.

Image Credit & Copyright: Jean-Marc Mari

Explanation: What time is it? If the time and day are right, this sundial will tell you: SOLSTICE. Only then will the Sun be located just right for sunlight to stream throughopenings and spell out the term for the longest and shortest days of the year. And that happened last week and twice each year. The sundial was constructed by Jean Salins in 1980 and is situated at the Ecole Supérieure des Mines de Paris in Valbonne Sophia Antipolis of south-eastern France. On two other days of the year, watchers of this sundialmight get to see it produce another word: EQUINOXE.

Tidak ada komentar:

Posting Komentar