Encyclopedia > Henri Chrétien

Article Content

Henri Chrétien

Henri Chrétien (February 1, 1879 - February 6, 1956) was a French astronomer and an inventor. Born in Paris, France, his moust famous invention is the anamorphic[?] wide-screen[?] process, that resulted in CinemaScope[?], and the co-invention (with George Willis Ritchey) of the Ritchey-Chrétien type of astronomical telescope.

The astronomical Chrétien International Research Grants[?] awards are in honor of him.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

French resistance

... In December 1941 they began to publish Le Franc-Tireur underground newspaper. There were also members in the Mediterranean area. Front National[?] (FN or National ...