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In mathematics, a cube root of a number x is a number y such that y3 = x. All nonzero real numbers, have exactly one real cube root and a pair of complex conjugate cube roots, and all nonzero complex numbers have three distinct complex cube roots. For example, the real cube root of 8, denoted , is 2, because 23 = 8, while the other cube roots ...

The next number in the sequence (the smallest number of additive persistence 5) is 2 × 10 2×(10 22 − 1)/9 − 1 (that is, 1 followed by 2 222 222 222 222 222 222 222 nines). For any fixed base, the sum of the digits of a number is proportional to its logarithm ; therefore, the additive persistence is proportional to the iterated logarithm .

The oldest six titles – created between 1337 and 1386 – were Duke of Cornwall (1337), Duke of Lancaster (1351), Duke of Clarence (1362), Duke of York (1385), Duke of Gloucester (1385), and Duke of Ireland (1386). The Duke of Ireland was a title used for only two years and is somewhat confusing since only a small portion of Ireland was ...

Auto Wagon (1909-1916) [ edit] Models: Auto Wagon AA, AW, MA, MW, MAX, MWX. The Auto Wagon, a variant of the Auto Buggy of 1907, was the first truck built by International Harvester. It was basically a light wooden wagon with a primitive gasoline engine mounted below the body. They were sometimes called "Highwheelers".

Boeing Dreamlifter. The Boeing 747-400 Large Cargo Freighter ( LCF) is a wide-body cargo aircraft modified extensively from the Boeing 747-400 airliner. With a volume of 65,000 cubic feet (1,840 m³) [1] it can hold three times that of a 747-400F freighter. [2]