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Spheres

Our suggestions

Well-thought articles for question-digging readers.

Elaboration of our reflexions

Well-thought articles for question-digging readers.

 
Short meteorological clip presenting the August 1st, 2006 thunderstorm in the Montreal area.

1,696 lightnings, the movie

Short meteorological clip presenting the August 1st, 2006 thunderstorm in the Montreal area.

 
History, advantages and usage contexts of the PNG image format.

A flexible, optimized and free image format

History, advantages and usage contexts of the PNG image format.