Tuesday, November 17, 2009

Nobel-winning Russian physicist dies at 93.

Vitaly Ginzburg, a Nobel Prize-winning Russian physicist and one of the fathers of the Soviet hydrogen bomb, has died in Moscow. He was 93.

Ginzburg died late Sunday (Novemember 8) of caridac arrest, the Russian Academy of Sciences said Monday.

Ginzburg won the 2003 Nobel Prize in physics with two other scientists for their contribution to theories on superconductivity, the ability of some materials to conduct electricity without resistance.

In the late 1940s and early 1950s, Ginzburg was a key member of the group working under Igor Tamm that developed the Soviet hydrogen bomb.

Ginzburg wrote that he and Anrei Sakharov - considered the father of the Soviet H-bomb - formulated the two ideas that made it possible to build the thermonuclear device.

In a career that spanned seven decades. Ginzburg authored several groundbreaking studies in various fields - such as quantum theory, astrophysics, radio-astronomy and diffusion of cosmic radiation in the Earth's atmosphere - that were of "Nobel Prize caliber," said Gennady Mesyats, the director of the Lebedev Physics Institute in Moscow, where Ginzburg worked.

"I can hardly list all the fields of physics to which he contributed," Mesyats said in televised comments Monday.

Russian President Dmitry Medvedev praised Ginzburg as a "top physicist of our time whose discoveries had a huge impact on the development of national and world science" in a letter of condolences released by the Kremlin.

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