- helium standard of light
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English-German dictionary of Electrical Engineering and Electronics. 2013.
English-German dictionary of Electrical Engineering and Electronics. 2013.
Helium — Hélium Traduction à relire Helium → … Wikipédia en Français
Hélium 4 — Hélium Traduction à relire Helium → … Wikipédia en Français
Helium — otherusesHelium (He) is a colorless, odorless, tasteless, non toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the… … Wikipedia
Light gas gun — The light gas gun is an apparatus for physics experiments, a highly specialized gun designed to generate very high velocities. It is usually used to study high speed impact phenomena (hypervelocity research), such as the formation of impact… … Wikipedia
Hélium — Pour les articles homonymes, voir Helium (homonymie). Hélium Hydrogène ← Hélium → … Wikipédia en Français
Obtention de l'helium — Hélium Traduction à relire Helium → … Wikipédia en Français
Isotopes of helium — Although there are eight known isotopes of helium (He) (standard atomic mass: 4.002602(2) u), only helium 3 (SimpleNuclide|Helium|3) and helium 4 (SimpleNuclide|Helium|4) are stable. In the Earth s atmosphere, there is one SimpleNuclide|Helium|3… … Wikipedia
Non-standard cosmology — Physical cosmology Universe · Big Bang … Wikipedia
Metre — This article is about the unit of length. For other uses of metre or meter , see meter (disambiguation). 1 metre = SI units 100 cm 1000 mm US customary / Imperial units 3.2808 ft 39.370 in The metre (or meter), symbol m, is… … Wikipedia
Metrication controversy — The introduction of the metric system has faced some opposition in a number of countries over the past two centuries. Based on a previous U.S. Metric Association and recent CIA survey it is commonly cited that only the United States of America,… … Wikipedia
Metrication opposition — The spread of metrication around the world in the last two centuries has been met with both support and opposition. All countries except Burma (Myanmar), Liberia, and the United States of America have officially adopted the metric system,[1]… … Wikipedia