can you explain the act that he broke?
It is legislation that provides for the protection of state secrets and official information, mainly related to national security.
Introduction
 is legislation that provides for the protection of state secrets and official information, mainly related to national security.
who headed up the manhattan project in britain James Chadwick who is he? He was a British physicist. what was he known for? His discovery of the neutron. can you describe this thing he discovered? It is a subatomic particle, symbol or which has a neutral (not positive or negative) charge and a mass slightly greater than that of a proton. why was the above project started? It helped initiate the effort to build the first atomic bombs in the United States during World War II, and helped carry it through to completion in August 1945 by supplying crucial expertise. any other scientist were involved in it? Sir Geoffrey Taylor, James Tuck, Niels Bohr, Peierls, Frisch, and Klaus Fuchs what field did the last scientist study? Mathematics and physics why was he sent to prison? He was convicted on 1 March 1950 of four counts of breaking the Official Secrets Act by "communicating information to a potential enemy. what was the sentence announced by the court? 14 years imprisonment
He was an atomic spy who supplied information from the American, British, and Canadian Manhattan Project to the Soviet Union during and shortly after World War II. It  is legislation that provides for the protection of state secrets and official information, mainly related to national security. It is legislation that provides for the protection of state secrets and official information.
Klaus Fuchs Official Secrets Act Official Secrets Act
Introduction Introduction Introduction
Klaus Emil Julius Fuchs (29 December 1911 – 28 January 1988) was a German theoretical physicist and atomic spy who supplied information from the American, British, and Canadian Manhattan Project to the Soviet Union during and shortly after World War II. An Official Secrets Act (OSA) is legislation that provides for the protection of state secrets and official information, mainly related to national security. OSAs are currently in-force in Hong Kong, India, Ireland, Myanmar, Malaysia, Singapore and the United Kingdom, and have previously existed in Canada and New Zealand,  An Official Secrets Act (OSA) is legislation that provides for the protection of state secrets and official information, mainly related to national security. 
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Official Secrets Act [SEP] Introduction
An Official Secrets Act (OSA) is legislation that provides for the protection of state secrets and official information, mainly related to national security. OSAs are currently in-force in Hong Kong, India, Ireland, Myanmar, Malaysia, Singapore and the United Kingdom, and have previously existed in Canada and New Zealand, There were earlier English and British precedents, long before the acts enumerated here. As early as the 16th Century, following Francis Drake's circumnavigation, Queen Elizabeth I declared that all written accounts of Drake's voyages were to become the 'Queen's secrets of the Realm'. In addition, Drake and the other participants of his voyages were sworn to their secrecy on the pain of death; the Queen intended to keep Drake's activities away from the eyes of rival Spain.