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Alejandro Malaspina (November 5, 1754 – April 9, 1810) was a Tuscan explorer who spent most of his life as a Spanish naval officer.Under a Spanish royal commission, he undertook a voyage around the world from 1786 to 1788, then, from 1789 to 1794, a scientific expedition (the Malaspina Expedition) throughout the Pacific Ocean, exploring and mapping much of the west coast of the Americas from ...
Juan Pardo was a Spanish explorer who was active in the latter half of the 16th century. He led a Spanish expedition from the Atlantic coast through what is now North and South Carolina and into eastern Tennessee [1] on the orders of Pedro Menéndez de Avilés, in an attempt to find an inland route to a silver-producing town in Mexico.
Herbert George Ponting, FRGS (21 March 1870 – 7 February 1935) was a professional photographer.He is best known as the expedition photographer and cinematographer for Robert Falcon Scott's Terra Nova Expedition to the Ross Sea and South Pole (1910–1913). [1]
In 1909, Terra Nova was bought by Captain R.F. Scott RN for the sum of £12,500, as expedition ship for the British Antarctic Expedition 1910. Reinforced from bow to stern with seven feet of oak to protect against the Antarctic ice pack, she sailed from Cardiff Docks on 15 June 1910 under overall command of Captain Scott. He described her as "a ...
The list of expeditions of Muhammad includes the expeditions undertaken by the Muslim community during the lifetime of the Islamic prophet Muhammad.. Some sources use the word ghazwa and a related plural maghazi in a narrow technical sense to refer to the expeditions in which Muhammad took part, while using the word sariyya (pl. saraya) for those early Muslim expeditions where he was not ...
He described the Borneo expedition before the club on November 19, 1936, the event being called "Martin Johnson Night." [9] He previewed his "Borneo Pictures" before the group on December 17, 1936. [10] In January 1937, Martin and Osa began a nationwide lecture and radio tour at the Mormon Tabernacle in Salt Lake City.
It may be used to prove Nicomachus's theorem that the sum of the first cubes equals the square of the sum of the first positive integers. [2] Summation by parts is frequently used to prove Abel's theorem and Dirichlet's test.
Legendre's three-square theorem states which numbers can be expressed as the sum of three squares; Jacobi's four-square theorem gives the number of ways that a number can be represented as the sum of four squares. For the number of representations of a positive integer as a sum of squares of k integers, see Sum of squares function.