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In (especially English) scientific and technical literature, @ is used to describe the conditions under which data are valid or a measurement has been made. E.g. the density of saltwater may read d = 1.050 g/cm 3 @ 15 °C (read "at" for @), density of a gas d = 0.150 g/L @ 20 °C, 1 bar, or noise of a car 81 dB @ 80 km/h (speed).
The 27th parallel south is a circle of latitude that is 27 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, Africa, the Indian Ocean, Australasia, the Pacific Ocean and South America. At this latitude the sun is visible for 13 hours, 52 minutes during the December solstice and 10 hours, 24 minutes during the June ...
27–29 Fountain Alley was placed on the National Register of Historic Places on March 2, 1982. The Fountain Alley building holds historical significance in architecture because it is the only representative of Italianate design and late Victorian -style in this area.
These are the defining dimensions for NAD 27, but Clarke actually defined his 1866 spheroid as a = 20,926,062 British feet, b = 20,855,121 British feet. The conversion to meters uses Clarke's 1865 inch-meter ratio of 39.370432. The length of a foot or meter at the time could not practically be benchmarked to better than about 0.02 mm. [11]
The 27th parallel north is a circle of latitude that is 27 degrees north of the Earth's equatorial plane. It crosses Africa , Asia , the Pacific Ocean , North America , and the Atlantic Ocean . At this latitude the sun is visible for 13 hours, 51 minutes during the summer solstice and 10 hours, 26 minutes during the winter solstice .
The 29th parallel north is a circle of latitude that is 29 degrees north of the Earth's equatorial plane. It crosses Africa, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. At this latitude the sun is visible for 14 hours, 0 minutes during the summer solstice and 10 hours, 18 minutes during the winter solstice. [1]
Demonstration, with Cuisenaire rods, of the arithmetic nature of the number 6. In number theory, an arithmetic number is an integer for which the average of its positive divisors is also an integer. For instance, 6 is an arithmetic number because the average of its divisors is + + + =, which is also an integer.
The 0-6-0 inside-cylinder tender locomotive type was extremely common in Britain for more than a century and was still being built in large numbers during the 1940s. Between 1858 and 1872, 943 examples of the John Ramsbottom DX goods class were built by the London and North Western Railway and the Lancashire and Yorkshire Railway. This was the ...