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  2. Physically based rendering - Wikipedia

    en.wikipedia.org/wiki/Physically_based_rendering

    A diamond plate texture rendered close-up using physically based rendering principles. Microfacet abrasions cover the material, giving it a rough, realistic look even though the material is a metal. Specular highlights are high and realistically modeled at the appropriate edge of the tread using a normal map.

  3. Phosphorus pentabromide - Wikipedia

    en.wikipedia.org/wiki/Phosphorus_pentabromide

    It is highly corrosive. It strongly irritates skin and eyes. [1] It decomposes above 100 °C to give phosphorus tribromide and bromine: [3] PBr 5PBr 3 + Br 2. Reversing this equilibrium to generate PBr 5 by addition of Br 2 to PBr 3 is difficult in practice because the product is susceptible to further addition to yield phosphorus ...

  4. Pabst Blue Ribbon - Wikipedia

    en.wikipedia.org/wiki/Pabst_Blue_Ribbon

    Pabst Blue Ribbon, commonly abbreviated PBR, is an American lager beer sold by Pabst Brewing Company, established in Milwaukee, Wisconsin, in 1844 and currently based in San Antonio, Texas. Originally called Best Select , and then Pabst Select , the current name comes from the blue ribbons tied around the bottle's neck between 1882 and 1916.

  5. Phosphorus tribromide - Wikipedia

    en.wikipedia.org/wiki/Phosphorus_tribromide

    PBr 3 is prepared by treating red phosphorus with bromine. An excess of phosphorus is used in order to prevent formation of PBr 5: [1] [2] P 4 + 6 Br 2 → 4 PBr 3. Because the reaction is highly exothermic, it is often conducted in the presence of a diluent such as PBr 3. Phosphorus tribromide is also generated in situ from red phosphorus and ...

  6. The Fabric of the Cosmos - Wikipedia

    en.wikipedia.org/wiki/The_Fabric_of_the_Cosmos

    The Fabric of the Cosmos: Space, Time, and the Texture of Reality (2004) [1] is the second book on theoretical physics, cosmology, and string theory written by Brian Greene, professor and co-director of Columbia's Institute for Strings, Cosmology, and Astroparticle Physics (ISCAP).

  7. pBR322 - Wikipedia

    en.wikipedia.org/wiki/PBR322

    pBR322 is 4361 base pairs in length [1] and has two antibiotic resistance genes – the gene bla encoding the ampicillin resistance (Amp R) protein, and the gene tetA encoding the tetracycline resistance (Tet R) protein. It contains the origin of replication of pMB1, and the rop gene, which encodes a restrictor of plasmid copy number.

  8. Fire hydrant - Wikipedia

    en.wikipedia.org/wiki/Fire_hydrant

    Fire hydrant in Charlottesville, Virginia, United States. A fire hydrant, fireplug, [1] firecock (archaic), [2] hydrant riser or Johnny Pump [3] [better source needed] is a connection point by which firefighters can tap into a water supply.