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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 ...
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 ...
Sexagesimal, also known as base 60, [1] is a numeral system with sixty as its base. It originated with the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians , and is still used—in a modified form—for measuring time , angles , and geographic coordinates .
Aerial view of the White House complex, including Pennsylvania Avenue (closed to traffic) in the foreground, the Executive Residence and North Portico (center), the East Wing (left), and the West Wing and the Oval Office at its southeast corner. The White House is the official residence and workplace of the president of the United States.
A longitude is thus specified in sexagesimal notation as, for example, 23° 27′ 30″ E. For higher precision, the seconds are specified with a decimal fraction . An alternative representation uses degrees and minutes, and parts of a minute are expressed in decimal notation, thus: 23° 27.5′ E. Degrees may also be expressed as a decimal ...
A coordinate system conversion is a conversion from one coordinate system to another, with both coordinate systems based on the same geodetic datum. Common conversion tasks include conversion between geodetic and earth-centered, earth-fixed coordinates and conversion from one type of map projection to another.
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.
A "Winter White House" is typically the name given to the winter vacation residence of the standing president of the United States aside from Camp David, the mountain-based military camp in Frederick County, Maryland, used as a country retreat and for high-alert protection of the president and his guests.