Bernard T. Feld (December 21, 1919 - February 19, 1993) was a professor of physics at the Massachusetts Institute of Technology. He helped develop the atomic bomb, and later led an international movement among scientists to banish nuclear weapons. December 21 is the 355th day of the year (356th in leap years) in the Gregorian Calendar. ... 1919 (MCMXIX) was a common year starting on Wednesday (see link for calendar). ... February 19 is the 50th day of the year in the Gregorian Calendar. ... 1993 (MCMXCIII) is a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ... A professor (Latin: one who claims publicly to be an expert) (prof for short) is a senior teacher, lecturer and researcher, usually in a college or university. ... Since antiquity, people have tried to understand the behavior of matter: why unsupported objects drop to the ground, why different materials have different properties, and so forth. ... The Massachusetts Institute of Technology, or MIT, is a research and educational institution located in the city of Cambridge, Massachusetts, USA. MIT is a widely renowned leader in science and technology, as well as in many other fields, including management, economics, linguistics, political science, and philosophy. ... The mushroom cloud of the atomic bombing of Nagasaki, Japan, 1945, rose some 18 km (11 mi) above the epicenter. ...

His life could be summed up with a famous quote of his:

"I was involved in the original sin, and I have spent a large part of my life atoning for it." Original sin is usually understood of the condition of sinfulness (lack of holiness) in which human beings, according to Christian tradition, are born. ...

He was born in Brooklyn, New York. He graduated from the City College of New York with a bachelor of science degree in 1939. He began graduate school at Columbia University, but suspended his studies to join the American war effort. He spent the war serving as an assistant to Enrico Fermi and Leó Szilárd working on the Manhattan Project. After World War II, he returned to Columbia University to receive his PhD in 1945. A map highlighting Brooklyn and the rest of New York City. ... State nickname: The Empire State Official languages None. ... The City College of The City University of New York (known more commonly as City College of New York or simply City College, CCNY, or colloquially as City) is a senior college of the City University of New York, in New York City. ... // Events January-March January 2 - End of term for Frank Finley Merriam, 28th Governor of California. ... Columbia University is a private university in the Morningside Heights neighborhood of Manhattan, New York City. ... Enrico Fermi in the 1940s. ... Leó Szilárd (right) and Albert Einstein re-enact the signing of the famous letter to Franklin Delano Roosevelt. ... Control panels and operators for calutrons at the Y-12 Plant in Oak Ridge, Tennessee. ... World War II was a truly global conflict with many facets: immense human suffering, fierce indoctrination, and the use of new, extremely devastating weapons such as the atom bomb. ... Columbia University is a private university in the Morningside Heights neighborhood of Manhattan, New York City. ... 1945 (MCMXLV) was a common year starting on Monday (link will take you to calendar). ...

He was on the faculty of MIT from 1948 until he retired in 1990. During this time, he was President of the Albert Einstein Peace Foundation, editor of the Bulletin of the Atomic Scientists, and President of the American Pugwash Committee. 1948 (MCMXLVIII) is a leap year starting on Thursday (link will take you to calendar). ... This article is about the year. ... The Bulletin of the Atomic Scientists is a journal concerned with global security issues, especially related to the dangers posed nuclear and other weapons of mass destruction. ...

The Pugwash Conferences on Science and World Affairs won the Nobel Peace Prize in 1995. Feld was a leader in these conferences, serving as U.S. Chairman from 1963 to 1973 and as International Chairman from 1973 to 1978. It was in this role that he attracted the anger of Richard Nixon's Whitehouse. He was on Nixon's list of enemies, a fact that pleased him tremendously. The Pugwash Conferences on Science and World Affairs is a scientifically-oriented peace group. ... The Nobel Peace Prize Medal featuring a portrait of Alfred Nobel The Nobel Peace Prize is one of five Nobel Prizes bequested by the Swedish industrialist and inventor Alfred Nobel. ... 1995 (MCMXCV) was a common year starting on Sunday of the Gregorian calendar. ... Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was the thirty-seventh President of the United States, serving from 1969 to 1974. ... Nixons Enemies List is the informal name of what started as a list of the Nixon administrations major political opponents compiled by Charles Colson and sent in memorandum form to John Dean on September 9, 1971. ...