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  2. Degree (angle) - Wikipedia

    en.wikipedia.org/wiki/Degree_(angle)

    With the invention of the metric system, based on powers of ten, there was an attempt to replace degrees by decimal "degrees" in France and nearby countries, [note 3] where the number in a right angle is equal to 100 gon with 400 gon in a full circle (1° = 10 ⁄ 9 gon). This was called grade (nouveau) or grad.

  3. £sd - Wikipedia

    en.wikipedia.org/wiki/£SD

    The United States of America was among the first to drop the £sd system and adopt a decimal currency in 1792, 10 years after independence from the British Empire, but retains many other aspects of the customary units for length and weight. Australia, on the other hand, only changed to using a decimal currency on 14 February 1966, 65 years ...

  4. List of Latin words with English derivatives - Wikipedia

    en.wikipedia.org/wiki/List_of_Latin_words_with...

    This is a list of Latin words with derivatives in English (and other modern languages).. Ancient orthography did not distinguish between i and j or between u and v. [1] Many modern works distinguish u from v but not i from j.

  5. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    In chemistry the negative of the decimal logarithm, the decimal cologarithm, is indicated by the letter p. [63] For instance, pH is the decimal cologarithm of the activity of hydronium ions (the form hydrogen ions H + take in water). [64] The activity of hydronium ions in neutral water is 10 −7 mol·L −1, hence a pH of 7. Vinegar typically ...

  6. 57th parallel north - Wikipedia

    en.wikipedia.org/wiki/57th_parallel_north

    The 57th parallel north is a circle of latitude that is 57 degrees north of the Earth's equatorial plane.It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.

  7. Blood type distribution by country - Wikipedia

    en.wikipedia.org/wiki/Blood_type_distribution_by...

    This list concerns blood type distribution between countries and regions.Blood type (also called a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs).

  8. Isotopes of iron - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_iron

    56 Fe is the most abundant isotope of iron. It is also the isotope with the lowest mass per nucleon, 930.412 MeV/c 2, though not the isotope with the highest nuclear binding energy per nucleon, which is nickel-62. [7]

  9. Debit card - Wikipedia

    en.wikipedia.org/wiki/Debit_card

    Most debit cards in the UK lack the advantages offered to holders of UK-issued credit cards, such as free incentives (points, cashback etc.; the Tesco Bank debit card was one exception), interest-free credit and protection against defaulting merchants under Section 75 of the Consumer Credit Act 1974. Almost all establishments in the UK that ...