Celebiography.net

Edmund Galley

Picture of Edmund Galley

Date of Birth: 08/11/1656

Age: 85

Place of birth: Haggerston

Citizenship: United Kingdom

Background

With the enthusiasm and energy of 16-year-old schoolboy Halley building its first solar clock. With the same enthusiasm of 63-year-old renowned scientist, who took a high position Astronomer Royal, is taken as the time consuming IRDL lunar observations - and they should be conducted for 18 years (the time during which the point of intersection of the earth and lunar orbits describe a full circle in the sky). And in spite of everything, he shall bring them to a successful conclusion: since England - a great naval power - we need more accurate lunar tables for determining longitude at sea.

Edmund Halley was born on October 29, 1656 in the small village of Haggerston (now the suburb of London), the son of a wealthy soap-boiler.

Yeshe in 1676, as a third-year student at Oxford University, Halley published his first scientific paper - about the orbits of the planets and discovered a great inequality of Jupiter and Saturn (the speed increases all the time from one planet - Jupiter - and decreased in the other). This discovery is the first time confronted astronomers important to mankind the question of stability and durability of the solar system. In 1693 Halley discovered Auny secular acceleration, which could indicate its continuous approximation to the Earth ...

In the 70-ies. XVII. Halley was fascinated by a new challenge: to complement the known catalogs the stars of the southern part of Europe is not visible in the sky hemisphere. In 1676 he left the university and obtain permission of the Royal Society and the King himself, went to his first scientific expedition distant - on the island of St. Helena in the South Atlantic. As a result, in 1679 Halley published the first catalog of 341 southern stars, first used a telescope to determine stellar coordinates. The reward 22-year-old researcher was academic degree at Oxford University and the election of a member of the Royal Society of London.

In 1677 Halley suggested a new method of determining the distance to the Sun, ie. E. AU. Alya this it was necessary to observe the Transit of Venus from two places, remote latitude. Halley`s method enabled by the end of the XIX century. 25 times to reduce the error in determining the solar parallax.

Returning to England, Halley began exploring the power that controls the movement of the planets. In 1684 he independently deduced that it is inversely proportional to the square of the distance from the planet. However, to solve the problem, what will be the shape of the orbit determined by the action of such a force, Halley, could not like other physics. Meanwhile, the problem for almost two decades until it was solved by Isaac Newton, who, however, their results are not going to publish. Learning of this, Halley persuaded Newton to resume the investigation and took the cost of publishing them themselves. It saw the light of the famous "Mathematical Principles of Natural Philosophy" (1687). Halley wrote in Latin, the enthusiastic dedication of the great avtoru.Sm also NEWTON, ISAAC.

With the name of Edmund Halley and related radical change in the perception of comets. In modern times, before Newton all we considered them alien strangers, just fly through Solnechnuyusistemu for open-parabolic orbits. After 1680 and 1682. there were two bright comets, Halley calculated and published in 1705 orbits of 24 comets and drew attention to the similarities between the orbits of several of them are observed in the XVI -. XVII centuries, with the parameters of the comet in 1682 the time between the appearance of these comets were multiple 75-76 years. In 1716 he published the detailed calculations and predicted that the next appearance of this comet should happen in late 1758 or early 1759 return of a comet in 1682 was the first to predict the timing triumphant confirmation of Newton`s theory of gravitation, I glorified the name of the Halley.

Article 1714 Halley made a very bold conclusion that the fireballs before considered vosplamen