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  2. Optical brightener - Wikipedia

    en.wikipedia.org/wiki/Optical_brightener

    Laundry detergent fluorescing under ultraviolet light. Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs), or fluorescent whitening agents (FWAs), are chemical compounds that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm) through the ...

  3. Standard Motor Products - Wikipedia

    en.wikipedia.org/wiki/Standard_Motor_Products

    Standard Motor Products was founded in Manhattan in 1919 as a partnership between Elias Fife, a Jewish immigrant from Lithuania, [2] and Ralph Van Allen. [3] Originally the company specialized in ignition and electrical parts. [4] In 1920 Van Allen opened a Standard Motor Products branch in Seattle.

  4. Aluminium–manganese alloys - Wikipedia

    en.wikipedia.org/wiki/Aluminium–manganese_alloys

    Aluminium–manganese alloys (AlMn alloys) are aluminium alloys that contain manganese (Mn) as the main alloying element. They consist mainly of aluminium (Al); in addition to manganese, which accounts for the largest proportion of about 1% of the alloying elements, but they may also contain small amounts of iron (Fe), silicon (Si), magnesium (Mg), or copper (Cu).

  5. Pontiac Streamliner - Wikipedia

    en.wikipedia.org/wiki/Pontiac_Streamliner

    For model year 1933, Pontiac introduced the all-new Economy Eight Series 601 with the 223.4 cu in (3.7 L) Silver Streak Straight-8 using a Carter one-barrel carburetor and shared the slanting vee-type grille that concealed the radiator used on all GM products, and was built on the GM A platform shared with the Chevrolet Master.

  6. Airstream - Wikipedia

    en.wikipedia.org/wiki/Airstream

    Airstream is an American brand of travel trailer easily recognized by the distinctive shape of its rounded and polished aluminum coachwork. This body shape dates back to the 1930s and is based on the Bowlus Road Chief, an earlier model of the all-aluminum travel trailer.

  7. Sheridan Products - Wikipedia

    en.wikipedia.org/wiki/Sheridan_Products

    It was quickly realized that for the company to survive, a much cheaper to produce model must be designed. This philosophy gave rise to the last Sheridan model, the Model C "Streak" introduced in 1949. Its MSRP at introduction was $19.95 and was selling for $23.95 by 1950. This is the model that ushered Sheridan Products Inc. into profitability.

  8. Rusal - Wikipedia

    en.wikipedia.org/wiki/Rusal

    UC Rusal is a public limited company and its shares are traded on the Moscow Stock Exchange, Hong Kong Stock Exchange and European [ambiguous] Stock Exchange. Since 25 September 2020, the company changed its place of registration from Jersey to Kaliningrad , Russia. [ 7 ]

  9. Quartz - Wikipedia

    en.wikipedia.org/wiki/Quartz

    Quartz is a hard, crystalline mineral composed of silica (silicon dioxide).The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2.