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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 through openings 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 SupÈrieure des Mines
de Paris in
Valbonne Sophia Antipolis of
south-eastern
France.
On two other days of the year,
watchers of
this sundial
might get to see it produce another word:
EQUINOXE.
Resource Guide:
NASA Education and Public Outreach
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: solstice
Publications with words: solstice
See also: