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Four-minute Warning
The four-minute warning was a public alert system conceived by the British Government during the Cold War and operated between 1953 and 1992. The name derived from the approximate length of time from the point at which a Soviet nuclear missile attack against the United Kingdom could be confirmed and the impact of those missiles on their targets. The warning system Basic details The warning would be initiated by the detection of inbound missiles and aircraft targeted at the United Kingdom. Early in the Cold War, Jodrell Bank was used to detect and track incoming missiles, while continuing to be used for astronomical research. Throughout the Cold War, there was a conflict between the Royal Air Force and the Home Office about who was in charge of the warning system. This was not for any practical or technical reason but more to do with who would be blamed if a false alarm were given or if an attack occurred without warning. By the 1980s, the warning was to be given on the ord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Politics Of The United Kingdom
The United Kingdom is a constitutional monarchy which, by legislation and convention, operates as a unitary parliamentary democracy. A hereditary monarch, currently King Charles III, serves as head of state while the Prime Minister of the United Kingdom, currently Sir Keir Starmer since 2024, serves as the head of the elected government. Under the United Kingdom's parliamentary system, executive power is exercised by His Majesty's Government, whose Prime Minister is formally appointed by the King to act in his name. The King must appoint a member of parliament that can command the confidence of the House of Commons, usually the leader of the majority party or apparent majority party, though the King may choose to appoint an alternative if they say that they cannot expect the confidence of the House. Having taken office, the Prime Minister can then appoint all other ministers from parliament. The Parliament has two houses: the House of Commons and the House of Lor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Solly Zuckerman
Solomon "Solly" Zuckerman, Baron Zuckerman (30 May 1904 – 1 April 1993) was a British public servant, zoologist and operational research pioneer. He is best remembered as a scientific advisor to the Allies on bombing strategy in the Second World War, for his work to advance the cause of nuclear non-proliferation, and for his role in bringing attention to global economic issues.King, Stev"From boffin to baron", ''The Spectator'' (9 June 2001) Early life and education Solomon Zuckerman was born in Cape Town in the British Cape Colony (modern-day South Africa) on 30 May 1904, the second child and eldest son of Moses and Rebecca Zuckerman (née Glaser). Both his parents were the children of Jewish immigrants from the Russian Empire. He was educated at the South African College School. After studying medicine at the University of Cape Town and later attending Yale University, he went to London in 1926 to complete his studies at University College Hospital Medical School. He b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Electromagnetic Pulse
An electromagnetic pulse (EMP), also referred to as a transient electromagnetic disturbance (TED), is a brief burst of electromagnetic energy. The origin of an EMP can be natural or artificial, and can occur as an electromagnetic field, as an electric field, as a magnetic field, or as a conducted electric current. The electromagnetic interference caused by an EMP can disrupt communications and damage electronic equipment. An EMP such as a lightning strike can physically damage objects such as buildings and aircraft. The management of EMP effects is a branch of electromagnetic compatibility (EMC) engineering. The first recorded damage from an electromagnetic pulse came with the solar storm of August 1859, or the Carrington Event. In modern warfare, weapons delivering a high energy EMP are designed to disrupt communications equipment, computers needed to operate modern warplanes, or even put the entire electrical network of a target country out of commission. General characte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Civil Defence
Civil defense or civil protection is an effort to protect the citizens of a state (generally non-combatants) from human-made and natural disasters. It uses the principles of emergency management: prevention, mitigation, preparation, response, or emergency evacuation and recovery. Programs of this sort were initially discussed at least as early as the 1920s and were implemented in some countries during the 1930s as the threat of war and aerial bombardment grew. Civil-defense structures became widespread after authorities recognised the threats posed by nuclear weapons. Since the end of the Cold War, the focus of civil defense has largely shifted from responding to military attack to dealing with emergencies and disasters in general. The new concept is characterised by a number of terms, each of which has its own specific shade of meaning, such as '' crisis management'', ''emergency management'', ''emergency preparedness'', '' contingency planning'', ''civil contingency'', ''ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Postmaster
A postmaster is the head of an individual post office, responsible for all postal activities in a specific post office. When a postmaster is responsible for an entire mail distribution organization (usually sponsored by a national government), the title of Postmaster General is commonly used. Responsibilities of a postmaster typically include management of a centralized mail distribution facility, establishment of letter carrier routes, supervision of letter carriers and clerks, and enforcement of the organization's rules and procedures. The postmaster is the representative of the Postmaster General in that post office. In Canada, many early places are named after the first postmaster. History In the days of horse-drawn carriages, a postmaster was an individual from whom horses and/or riders (known as postilions or "post-boys") could be hired. The postmaster would reside in a "post house". The first Postmaster General of the United States was the notable founding father ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Police Station
A police station is a facility operated by police or a similar law enforcement agency that serves to accommodate police officers and other law enforcement personnel. The role served by a police station varies by agency, type, and jurisdiction, but in larger agencies there may be multiple police stations that serve as regional or area sub-headquarters for personnel assigned to certain beats, administrative divisions, or police units, while in smaller agencies there may be fewer stations or even one singular police headquarters. Names While "police station" is the most generic term, individual law enforcement agencies tend to have specific names for their stations, including: *''Barracks'', used by American state police and highway patrol agencies, as well as in Ireland *''District office'', used by American state police and highway patrol agencies, as well as some municipal agencies like the Calgary Police Service *''Precinct house'' or ''precinct'', used by some large Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Speaking Clock
A speaking clock or talking clock is a live or recorded human voice service, usually accessed by telephone, that gives the correct time. The first telephone speaking clock service was introduced in France, in association with the Paris Observatory, on 14 February 1933. The format of the service is similar to that of radio time signal services. At set intervals (''e.g.'' ten seconds) a voice announces (for example) "At the third stroke, the time will be twelve forty-six and ten seconds……", with three beeps following. Some countries have sponsored time announcements and include the sponsor's name in the message. List by country Australia In Australia, the number 1194 was the speaking clock in all areas. The service started in 1953 by the Post Master General's Department, originally to access the talking clock on a rotary dial phone, callers would dial "B074", during the transition from a rotary dial to a DTMF based phone system, the talking clock number changed from "B074" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Broadcasting House
London Broadcasting House is the headquarters of the BBC, in Portland Place and Langham Place, London. The first radio broadcast from the building was made on 15 March 1932, and the building was officially opened two months later, on 15 May. The main building is in Art Deco style, with a facing of Portland stone over a steel frame. It is a Listed building, Grade II* listed building and includes the BBC Radio Theatre, where music and speech programmes are recorded in front of a studio audience. As part of a major consolidation of the BBC's property portfolio in London, Broadcasting House has been extensively renovated and extended. This involved the demolition of post-war extensions on the eastern side of the building, replaced by a new wing completed in 2005. The wing was named the "John Peel Wing" in 2012, after the disc jockey. BBC London, BBC News Arabic, BBC Arabic Television and BBC Persian Television are housed in the new wing, which also contains the reception area for B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Radio
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They can be received by other antennas connected to a radio receiver; this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track ob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Television
Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, entertainment, news, and sports. The medium is capable of more than "radio broadcasting", which refers to an audio signal sent to radio receivers. Television became available in crude experimental forms in the 1920s, but only after several years of further development was the new technology marketed to consumers. After World War II, an improved form of black-and-white television broadcasting became popular in the United Kingdom and the United States, and television sets became commonplace in homes, businesses, and institutions. During the 1950s, television was the primary medium for influencing public opinion.Diggs-Brown, Barbara (2011''Strategic Public Relations: Audience Focused Practice''p. 48 In the mid-1960s, color broadcasting was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
