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19th Century In Australia
19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number. Mathematics 19 is the eighth prime number, and forms a sexy prime with 13, a twin prime with 17, and a cousin prime with 23. It is the third full reptend prime, the fifth central trinomial coefficient, and the seventh Mersenne prime exponent. It is also the second Keith number, and more specifically the first Keith prime. * 19 is the maximum number of fourth powers needed to sum up to any natural number, and in the context of Waring's problem, 19 is the fourth value of g(k). * The sum of the squares of the first 19 primes is divisible by 19. *19 is the sixth Heegner number. 67 and 163, respectively the 19th and 38th prime numbers, are the two largest Heegner numbers, of nine total. * 19 is the third centered triangular number as well as the third centered hexagonal number. : The 19th triangular number is 190, equivalently the sum of the first 19 non-zero integers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convictism In Australia
Between 1788 and 1868, about 162,000 convicts were transported from Britain and Ireland to various penal colonies in Australia. The British Government began transporting convicts overseas to American colonies in the early 18th century. When transportation ended with the start of the American Revolution, an alternative site was needed to relieve further overcrowding of British prisons and hulks. Earlier in 1770, James Cook charted and claimed possession of the east coast of Australia for Britain. Seeking to pre-empt the French colonial empire from expanding into the region, Britain chose Australia as the site of a penal colony, and in 1787, the First Fleet of eleven convict ships set sail for Botany Bay, arriving on 20 January 1788 to found Sydney, New South Wales, the first European settlement on the continent. Other penal colonies were later established in Van Diemen's Land (Tasmania) in 1803 and Queensland in 1824. Western Australia – established as Swan River Colony i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
