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Land-based (in development) [12] The 3M22 Zircon, [13] also spelled as Tsirkon ( Russian: Циркон, NATO reporting name: SS-N-33) [14] is a Russian scramjet -powered, nuclear-capable hypersonic cruise missile. Produced by NPO Mashinostroyeniya for the Russian Navy, the missile utilizes the ZS-14 launch platforms on frigates and submarines.
Zircon ( / ˈzɜːrkɒn, - kən /) [7] [8] [9] is a mineral belonging to the group of nesosilicates and is a source of the metal zirconium. Its chemical name is zirconium (IV) silicate, and its corresponding chemical formula is Zr SiO 4. An empirical formula showing some of the range of substitution in zircon is (Zr 1–y, REE y ) (SiO 4) 1–x ...
Zirconium dioxide ( ZrO. 2 ), sometimes known as zirconia (not to be confused with zircon ), is a white crystalline oxide of zirconium. Its most naturally occurring form, with a monoclinic crystalline structure, is the mineral baddeleyite. A dopant [clarification needed] stabilized cubic structured zirconia, cubic zirconia, is synthesized in ...
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CNA Financial [33] CNO Financial Group [34] Colonial Life & Accident Insurance Company [35] Combined Insurance [36] Commerce Insurance Group. Country Financial [37] Delta Dental. Encompass Insurance Company. Erie Insurance Group.
American retail corporation Walmart has been the world's largest company by revenue since 2014. [1] The list is limited to the largest 50 companies, all of which have annual revenues exceeding US$130 billion. This list is incomplete, as not all companies disclose their information to the media and/or general public. [3]
Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive.