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  2. Russian ruble - Wikipedia

    en.wikipedia.org/wiki/Russian_ruble

    In 1961, new State Treasury notes were introduced for 1, 3 and 5 rubles, along with new State Bank notes worth 10, 25, 50, and 100 rubles. In 1991, the State Bank took over production of 1, 3 and 5-ruble notes and also introduced 200, 500 and 1,000-ruble notes, although the 25-ruble note was no longer issued.

  3. Sustainability at American colleges and universities - Wikipedia

    en.wikipedia.org/wiki/Sustainability_at_American...

    At only 6.5 feet tall and weighing only 60 pounds, these ten turbines generate up to 26 megawatt-hours of electricity annually, reducing Yale's carbon footprint by 20,000 pounds a year. [ 17 ] University of Vermont

  4. Economy of Pakistan - Wikipedia

    en.wikipedia.org/wiki/Economy_of_Pakistan

    [60] [61] [62] The Pakistani rupee was pegged to the pound sterling until 1982, when the government of General Zia-ul-Haq, changed it to a managed float regime. As a result, the rupee devalued by 38.5% between 1982/83, and many of the industries built by his predecessor suffered a huge surge in import costs.

  5. Stainless steel - Wikipedia

    en.wikipedia.org/wiki/Stainless_steel

    Stainless steel is 100% recyclable. [89] [90] An average stainless steel object is composed of about 60% recycled material of which approximately 40% originates from end-of-life products, while the remaining 60% comes from manufacturing processes. [91]

  6. Chernobyl disaster - Wikipedia

    en.wikipedia.org/wiki/Chernobyl_disaster

    It was estimated that 25 tonnes (55 thousand pounds) of liquid nitrogen per day would be required to keep the soil frozen at −100 °C (−148 °F). [18]: 59 This idea was quickly scrapped. [87] As an alternative, subway builders and coal miners were deployed to excavate a tunnel below the reactor to make room for a cooling system. The final ...

  7. Alcohol by volume - Wikipedia

    en.wikipedia.org/wiki/Alcohol_by_volume

    [1] [2] [3] It is defined as the number of millilitres (mL) of pure ethanol present in 100 mL (3.5 imp fl oz; 3.4 US fl oz) of solution at 20 °C (68 °F). The number of millilitres of pure ethanol is the mass of the ethanol divided by its density at 20 °C (68 °F), which is 0.78945 g/mL (0.82353 oz/US fl oz; 0.79122 oz/imp fl oz; 0.45633 oz ...

  8. Euro - Wikipedia

    en.wikipedia.org/wiki/Euro

    Between December 1999 and December 2002, the euro traded below the US dollar, but has since traded near parity with or above the US dollar, peaking at US$1.60 on 18 July 2008 and since then returning near to its original issue rate.

  9. Steel - Wikipedia

    en.wikipedia.org/wiki/Steel

    Steel is one of the world's most-recycled materials, with a recycling rate of over 60% globally; [3] in the United States alone, over 82,000,000 metric tons (81,000,000 long tons; 90,000,000 short tons) were recycled in the year 2008, for an overall recycling rate of 83%.