The Collaborative International Dictionary of English. 2000.
Radioastronomie — Le very Large Array près de Socorro (Nouveau Mexique) aux États unis. La radioastronomie est une branche de l astronomie traitant de l observation du ciel dans le domaine des ondes radio. C est une science relativement jeune qui a fait ses débuts … Wikipédia en Français
Radioastronomie amateur — La radioastronomie amateur est la pratique de la radioastronomie par des astronomes non professionnels et des radioamateurs. Il y a environ 50 000 astronomes amateurs en France, mais moins de 300 radioastronomes amateurs. Sommaire 1… … Wikipédia en Français
Formaldehyde — For other uses, see Formaldehyde (disambiguation). Formaldehyde … Wikipedia
Methylamine — Methylamine … Wikipedia
Formox process — The FORMOX process produces formaldehyde. FORMOX is a worldwide registered trademark owned by Perstorp Specialty Chemicals AB, Sweden Home page at www.perstorp.comIndustrially, formaldehyde is produced by catalytic oxidation of methanol. The most … Wikipedia
Trigonal planar molecular geometry — In chemistry, trigonal planar is a molecular geometry with one atom at the center and three atoms at the corners of a triangle all in one planeFact|date=January 2008. In an ideal trigonal planar species, all three ligands are identical and all… … Wikipedia
Astrophysical maser — An astrophysical maser is a naturally occurring source of stimulated spectral line emission, typically in the microwave portion of the electromagnetic spectrum. This emission may arise in molecular clouds, comets, planetary atmospheres, stellar… … Wikipedia
Megamaser — A megamaser is a type of astrophysical maser, which is a naturally occurring source of stimulated spectral line emission. Megamasers are distinguished from astrophysical masers by their large isotropic luminosity. Megamasers produce roughly 103… … Wikipedia
50-00-0 — Méthanal Méthanal Représentation du méthanal … Wikipédia en Français
74-89-5 — Méthylamine Méthylamine Général Nom IUPAC aminométhane Synonymes … Wikipédia en Français
