helium leak test
112007 in spaceflight — rowspan = 4|10 January, 03:53 GMT [cite web url = http://www.rediff.com/news/2007/jan/10pslv.htm title = All 4 PSLV C7 satellites launched into orbit publisher = Rediff author = T K Rohit date=2007 01 10 accessdate=2008 03 29] rowspan =… …
12September 2008 in science — NOTOC 2008 : ← January February March April May June July August September October November December →September 30 2008 (Tuesday)*The Hubble Space Telescope repair mission is delayed as the data control unit fails, stopping all transmissions and… …
13ГОСТ Р 54113-2010: Соединительные устройства для многократной заправки сжатым водородом наземных транспортных средств — Терминология ГОСТ Р 54113 2010: Соединительные устройства для многократной заправки сжатым водородом наземных транспортных средств оригинал документа: 3.1 воздух, сухой (air, dry): Воздух с максимальной точкой росы 40 °С. Определения термина из… …
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14Hindenburg disaster — Infobox Aircraft accident name = LZ 129 Hindenburg caption = Hindenburg a few seconds after catching fire. date = May 6, 1937 type = Airship fire site = Lakehurst Naval Air Station in Manchester Township, New Jersey coords =… …
15nuclear reactor — Physics. reactor (def. 4). Also called nuclear pile. [1940 45] * * * Device that can initiate and control a self sustaining series of nuclear fission reactions. Neutrons released in one fission reaction may strike other heavy nuclei, causing them …
16Fusion power — The Sun is a natural fusion reactor. Fusion power is the power generated by nuclear fusion processes. In fusion reactions two light atomic nuclei fuse together to form a heavier nucleus (in contrast with fission power). In doing so they release a …
17Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
18STS-133 — Mission insignia Mission statistics Mission name STS 133 Space shuttle Discovery …
19mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
20Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
