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 SupИrieure 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
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Публикации с ключевыми словами:
solstice - солнечные часы - солнцестояние
Публикации со словами: solstice - солнечные часы - солнцестояние | |
См. также:
Все публикации на ту же тему >> |