Arthur Eddington facts for kids
Quick facts for kids
Sir Arthur Eddington
Arthur Stanley Eddington (1882–1944)
Arthur Stanley Eddington
28 December 1882
|Died||22 November 1944
|Alma mater||University of Manchester
Trinity College, Cambridge
|Known for||Eddington limit
|Awards||Royal Society Royal Medal (1928)
Smith's Prize (1907)
RAS Gold Medal (1924)
Henry Draper Medal (1924)
Bruce Medal (1924)
Knights Bachelor (1930)
Order of Merit (1938)
|Institutions||Trinity College, Cambridge|
|Doctoral students||Subrahmanyan Chandrasekhar
G. L. Clark
Eddington did his greatest work in astrophysics. He was also a philosopher of science and a populariser of science. The Eddington limit is named after him. It is the natural limit to the luminosity of stars, or the radiation generated by accretion onto a compact object (which is what causes the luminosity).
Around 1920, he anticipated the discovery and mechanism of nuclear fusion in stars. This was published in his paper "The Internal Constitution of the Stars". At that time, the source of stellar energy was a complete mystery; Eddington was the first to correctly speculate that the source was fusion of hydrogen into helium.
He is also famous for his work on the theory of relativity. Eddington wrote a number of articles that explained Einstein's theory of general relativity to the English-speaking world. World War I severed many lines of scientific communication and new developments in German science were not well known in England. He also conducted an expedition to observe the solar eclipse of 29 May 1919. That gave one of the earliest confirmations of general relativity.The observations showed that light from stars which passed close by the Sun was slightly bent towards the Sun. This was predicted by the general theory of relativity. He became known for his popular expositions and interpretations of the theory.
Images for kids
One of Eddington's photographs of the total solar eclipse of 29 May 1919, presented in his 1920 paper announcing its success, confirming Einstein's theory that light "bends"
The minute book of Cambridge ∇2V Club for the meeting where Eddington presented his observations of the curvature of light around the sun, confirming Einstein's Theory of General Relativity. They include the line "A general discussion followed. The President remarked that the 83rd meeting was historic".
Arthur Eddington Facts for Kids. Kiddle Encyclopedia.