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  2. Sexagesimal - Wikipedia

    en.wikipedia.org/wiki/Sexagesimal

    According to Otto Neugebauer, the origins of sexagesimal are not as simple, consistent, or singular in time as they are often portrayed.Throughout their many centuries of use, which continues today for specialized topics such as time, angles, and astronomical coordinate systems, sexagesimal notations have always contained a strong undercurrent of decimal notation, such as in how sexagesimal ...

  3. Map Room (White House) - Wikipedia

    en.wikipedia.org/wiki/Map_Room_(White_House)

    The Map Room is a room on the ground floor of the White House, the official home of the president of the United States. The Map Room takes its name from its use during World War II, when Franklin Roosevelt used it as a situation room where maps were consulted to track the war's progress (for such purposes, it was later replaced by the West Wing ...

  4. ISO 6709 - Wikipedia

    en.wikipedia.org/wiki/ISO_6709

    ISO 6709, Standard representation of geographic point location by coordinates, is the international standard for representation of latitude, longitude and altitude for geographic point locations. The first edition ( ISO 6709:1983 ) was developed by ISO/IEC JTC 1 /SC 32.

  5. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    A form of unary notation called Church encoding is used to represent numbers within lambda calculus. Some email spam filters tag messages with a number of asterisks in an e-mail header such as X-Spam-Bar or X-SPAM-LEVEL. The larger the number, the more likely the email is considered spam. 10: Bijective base-10: To avoid zero: 26: Bijective base-26

  6. Regular number - Wikipedia

    en.wikipedia.org/wiki/Regular_number

    It also includes reciprocals of some numbers of more than six places, such as 3 23 (2 1 4 8 3 0 7 in sexagesimal), whose reciprocal has 17 sexagesimal digits. Noting the difficulty of both calculating these numbers and sorting them, Donald Knuth in 1972 hailed Inaqibıt-Anu as "the first man in history to solve a computational problem that ...

  7. Executive Residence - Wikipedia

    en.wikipedia.org/wiki/Executive_Residence

    This level was added during the 1948–1952 renovation, [1] [2] [3] and contains the air conditioning and water softening equipment. [4] [5] [6] The sub-basement and mezzanine also contain storage areas, the heating system, elevator machinery rooms, an incinerator, a medical clinic, a dentist's office, [6] the electrical control system, [1] a laundry room, [6] [1] [7] and flatware and dishware ...

  8. Hard-to-Believe Facts About the White House - AOL

    www.aol.com/21-crazy-facts-white-house-121100501...

    Bummer, George. Our nation's very first president, George Washington, picked the site for the White House and gave its design a thumbs-up. But he left office in 1797 and died in 1799, three years ...

  9. Decimal degrees - Wikipedia

    en.wikipedia.org/wiki/Decimal_degrees

    Decimal degrees are an alternative to using sexagesimal degrees (degrees, minutes, and seconds - DMS notation). As with latitude and longitude, the values are bounded by ±90° and ±180° respectively. Positive latitudes are north of the equator, negative latitudes are south of the equator.