solstice hiver 2017

The solstice occurs twice each year (around June 21 and December 21) as the Sun reaches its most northerly or southerly excursion relative to the celestial equator on the celestial sphere. The seasons of the year are directly connected to both the solstic

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Hiver is a super useful Google Chrome extension that simplifies communication and collaboration in a work or home environment. It makes Gmail a powerful productivity tool by adding useful features s...

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