Images Dated 20th December 2012

4th Solvay Conference on Physics, 1922

4th Solvay Conference on Physics. Group portrait of scientists attending the 4th Solvay Conference on Physics in Brussels, Belgium. Far left in the first row are Ernest Rutherford and Marie Curie. Third from the right in the back row is Edwin Schrodinger. These conferences were started by the Belgian physicist Ernest Solvay (1838-1922) in 1911. At them, some of the leading thinkers of the day in physics, chemistry and sociology discussed recent advances in their fields. Many of the ideas about quantum mechanics, the atom and cosmology were developed at them. Photographed in 1924

© EMILIO SEGRE VISUAL ARCHIVES/AMERICAN INSTITUTE OF PHYSICS/SCIENCE PHOTO LIBRARY

Aircraft carriers in port at Naval Station Norfolk, Virginia

December 20, 2012 - The aircraft carriers USS Dwight D. Eisenhower (CVN 69), USS George H.W. Bush (CVN 77), USS Enterprise (CVN 65), USS Harry S. Truman (CVN 75), and USS Abraham Lincoln (CVN 72) are in port at Naval Station Norfolk, Virginia, the worlda??s largest naval station

© Stocktrek Images

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Bernard Lovell, British astronomer

Bernard Lovell (1913-2012), British physicist and astronomer. Lovell founded the Jodrell Bank Observatory in Cheshire, UK, to house his 76 metre Mark 1A telescope. The Mark 1 was the world's first giant dish radio telescope. It was commissioned in 1957 after an epic construction effort lasting 6 years. After improvements in 1970/71 it was designated the Mark 1A. Originally a physicist, Lovell worked on cosmic ray studies before World War II, when he helped to develop radar. Photographed at the International Astronomical Union (IAU), Sydney, Australia, on 21st August 1973

© EMILIO SEGRE VISUAL ARCHIVES/AMERICAN INSTITUTE OF PHYSICS/SCIENCE PHOTO LIBRARY