boron recovery system
51Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …
52Rhenium — tungsten ← rhenium → osmium Tc ↑ Re ↓ Bh …
53Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
54Lanthanide triflates — are triflate salts of the lanthanide family with many uses in organic chemistry as Lewis acid catalysts. The catalysts act similar to aluminium chloride or ferric chloride, but are stable in water, which makes it possible to use water as solvent… …
55golf — golfer, n. /golf, gawlf/; Brit. also /gof/, n. 1. a game in which clubs with wooden or metal heads are used to hit a small, white ball into a number of holes, usually 9 or 18, in succession, situated at various distances over a course having… …
56plastic — plastically, plasticly, adv. /plas tik/, n. 1. Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives,… …
57Vitamin — This article is about the set of organic compounds. For the nutritional supplement preparation, see multivitamin. For the manga, see Vitamin (manga) …
58List of companies in the nuclear sector — Here is a list of all large companies which are active along the nuclear chain, from uranium mining, processing and enrichment, to the actual operating of nuclear power plant and waste processing. Company name Country of origin Category Brief… …
59Manhattan Project — This article is about the atomic bomb project. For other uses, see Manhattan Project (disambiguation). Manhattan District The Manhattan Project created the first nuclear bombs. The Trinity test …
60Nickel — This article is about the chemical element. For other uses, see Nickel (disambiguation). cobalt ← nickel → copper ↑ Ni ↓ Pd …
