helium leak test
51Transformer — This article is about the electrical device. For the toy line franchise, see Transformers. For other uses, see Transformer (disambiguation). Pole mounted distribution transformer with center tapped secondary winding. This type of transformer is… …
52Large Hadron Collider-The World's Most Powerful Particle Accelerator — ▪ 2009 On Sept. 10, 2008, scientists of the European Organization for Nuclear Research ( CERN), Geneva, ran the first test operation of what had been described as the largest machine and the most ambitious scientific experiment ever built… …
53Liquefied natural gas — Not to be confused with Natural Gas Liquids (NGL). Liquefied natural gas or LNG is natural gas (primarily methane, CH4) that has been converted to liquid form for ease of storage or transport. Liquefied natural gas takes up about 1/600th the… …
54Hyperspace (science fiction) — Hyperspace is a fictional plot device sometimes used in science fiction. It is typically described as an alternate region of subspace co existing with our own universe which may be entered using an energy field or other device. Travel in… …
55Charge conservation — In physics, charge conservation is the principle that electric charge can neither be created nor destroyed. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always… …
56Nuclear power in India — Nuclear power is the fourth largest source of electricity in India after thermal, hydroelectric and renewable sources of electricity.[1] As of 2010, India has 20 nuclear reactors in operation in six nuclear power plants, generating… …
57Nuclear fission product — Nuclear fission products are the atomic fragments left after a large atomic nucleus fissions. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons and a large release of energy… …
58Areva EPR — Fotomontage des im Bau befindlichen EPR (links im Bild) im Kernkraftwerk Olkiluoto Der EPR ist der größte Kernkraftwerkstyp des französischen Nuklearkonzerns Areva. Früher als European Pressurized Water Reactor vermarktet, ist die Abkürzung EPR… …
