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  2. 2-8-2 - Wikipedia

    en.wikipedia.org/wiki/2-8-2

    The Province of Buenos Aires Railway bought a single 2-8-2 locomotive from Hanomag of Germany in 1910. Numbered 251 and classified as class E, it was the only 2-8-2 on that railway's system. [13] The Central Northern Railway (FCCN) bought seven classes of 2-8-2 locomotives totalling 134 locomotives.

  3. Variants of SARS-CoV-2 - Wikipedia

    en.wikipedia.org/wiki/Variants_of_SARS-CoV-2

    The Epsilon variant or lineage B.1.429, also known as CAL.20C [158] or CA VUI1, [159] 21C [75] or 20C/S:452R, [97] is defined by five distinct mutations (I4205V and D1183Y in the ORF1ab gene, and S13I, W152C, L452R in the spike protein's S-gene), of which the L452R (previously also detected in other unrelated lineages) was of particular concern.

  4. 4.2-kiloyear event - Wikipedia

    en.wikipedia.org/wiki/4.2-kiloyear_event

    Modelling evidence suggests that the 4.2 ka event was the result of a significant weakening of the Atlantic meridional overturning circulation (AMOC), disrupting global ocean currents and generating precipitation and temperature changes in various regions.

  5. 8.2-kiloyear event - Wikipedia

    en.wikipedia.org/wiki/8.2-kiloyear_event

    The 8.2 kiloyear event appears as a dent in the warm Holocene period. Evolution of temperatures in the Post-Glacial period following the Last Glacial Maximum (LGM), according to Greenland ice cores. [1]

  6. Altman Z-score - Wikipedia

    en.wikipedia.org/wiki/Altman_Z-score

    The formula's approach has been used in a variety of contexts and countries, although it was designed originally for publicly held manufacturing companies with assets of more than $1 million. Later variations by Altman were designed to be applicable to privately held companies (the Altman Z'-score) and non-manufacturing companies (the Altman Z ...

  7. Samsung Galaxy S II - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_S_II

    Telus Mobility's 4G Galaxy S II X (Model SGH-T989D) is identical hardware-wise to the T-Mobile SGH-T989, including the Qualcomm 1.5 GHz dual core processor, larger 4.52 inch screen and 1,850 mAh battery. [68] Although utilizing a different modem firmware, most custom ROMs running on T-Mobile versions can be flashed to the Telus T989D.

  8. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    The base-2 numeral system is a positional notation with a radix of 2.Each digit is referred to as a bit, or binary digit.Because of its straightforward implementation in digital electronic circuitry using logic gates, the binary system is used by almost all modern computers and computer-based devices, as a preferred system of use, over various other human techniques of communication, because ...

  9. Newton's method - Wikipedia

    en.wikipedia.org/wiki/Newton's_method

    An illustration of Newton's method. In numerical analysis, the Newton–Raphson method, also known simply as Newton's method, named after Isaac Newton and Joseph Raphson, is a root-finding algorithm which produces successively better approximations to the roots (or zeroes) of a real-valued function.