|
Blackout (wartime)
A blackout during war, or in preparation for an expected war, is the practice of collectively minimizing outdoor light, including upwardly directed (or reflected) light. This was done in the 20th century to prevent crews of enemy aircraft from being able to identify their targets by sight, such as during the London Blitz of 1940. In coastal regions, a shoreside blackout of city lights also helped protect ships from being seen silhouetted against the artificial light by enemy submarines further out at sea. World War I United Kingdom Plans to black out British coastal towns in the event of war were drawn up in 1913 by Winston Churchill in his role as First Lord of the Admiralty; these plans were implemented on 12 August 1914, eight days after the United Kingdom had entered the war. On 1 October 1914, the Commissioner of the Metropolitan Police ordered that bright exterior lights were to be extinguished or dimmed in the London area and street lamps be partially painted out with b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attack On Pearl Harbor
The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at Naval Station Pearl Harbor, its naval base at Pearl Harbor on Oahu, Territory of Hawaii, Hawaii, on December 7, 1941. At the time, the U.S. was a Neutral powers during World War II, neutral country in World War II. The air raid on Pearl Harbor, which was launched from Aircraft carrier, aircraft carriers, resulted in the U.S. entering the war on the side of the Allies of World War II, Allies on the day following the attack. The Imperial General Headquarters, Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI, and as Operation Z during its planning. The attack on Pearl Harbor was preceded by months of negotiations between the U.S. and Japan over the future of the Pacific Ocean, Pacific. Japanese demands included that the U.S. ABCD line, end its sanctions against Japan, cease aidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bomb Shelter
A bomb shelter is a structure designed to provide protection against the effects of a bomb. Types of shelter Different kinds of bomb Shelter (building), shelters are configured to protect against different kinds of attack and strengths of hostile explosives. Air raid shelter An air raid shelter is a structure built to protect against bomber planes dropping bombs over a large area. These were commonly seen during World War II, such as the "Air-raid shelter#Anderson shelter, Anderson shelters" of the United Kingdom. Fallout shelter A fallout shelter is a shelter designed specifically for a nuclear war, with thick walls made from materials intended to block the radiation from nuclear fallout, fallout resulting from a nuclear explosion. Many such shelters were constructed as civil defense measures during the Cold War. A blast shelter protects against more conventional bomb blasts. Its main purpose is to protect from shock waves and overpressure and also from earthquake. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackout (fabric)
Blackout refers to a Foam rubber, foam-backed, Opacity (optics), opaque fabric used to black out light. Blackout fabrics are most commonly found in hotel rooms as curtain linings or drapery fabrics, blocking much of the light that would otherwise enter through a window when the curtains are closed. For travelers, third shift workers, and parents of babies, blackout is an essential element in the bedroom. Besides window coverings, other uses for blackout fabrics include wallpaper, Projection screen, movie projector screens and planetarium domes. They are particularly popular for shift workers who sleep during the day, for Nursery (room), nurseries where total darkness can help babies sleep better, or for homes in urban areas with significant nighttime light pollution. Beyond light control, blackout curtains can also provide insulation, helping to regulate room temperature by reducing heat transfer, and offer noise reduction, contributing to a quiet environment. Manufacture The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Defense
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: Risk 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 strategic bombing, 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 plan, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit
Detroit ( , ) is the List of municipalities in Michigan, most populous city in the U.S. state of Michigan. It is situated on the bank of the Detroit River across from Windsor, Ontario. It had a population of 639,111 at the 2020 United States census, 2020 census, making it the List of United States cities by population, 26th-most populous city in the United States and the largest U.S. city on the Canada–United States border. The Metro Detroit area, home to 4.3 million people, is the second-largest in the Midwestern United States, Midwest after the Chicago metropolitan area and the 14th-largest in the United States. The county seat, seat of Wayne County, Michigan, Wayne County, Detroit is a significant cultural center known for its contributions to music, art, architecture and design, in addition to its historical automotive and industrial background. In 1701, Kingdom of France, Royal French explorers Antoine de la Mothe Cadillac and Alphonse de Tonty founded Fort Pontc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curtain
A curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or (in the case of a shower curtain) water. Curtains are often hung on the inside of a building's windows to block the passage of light. For instance, at night to aid sleeping, or to stop light from escaping outside the building (stopping people outside from being able to see inside, often for privacy reasons). In this application, they are also known as ''draperies''. Curtains hung over a doorway are known as portières. Curtains come in a variety of shapes, materials, sizes, colors, and patterns. They often have their own sections within department stores, while some shops are completely dedicated to selling curtains. Theater drapes and stage curtains serve a number of sound-absorbing and light-blocking functions, such as the front curtain that separates the stage from the auditorium, and other curtains and drapes that serve as backdrops or to obscure offstage areas. Curtai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackout Curtain (AM 2014
Blackout(s), black out, or The Blackout may refer to: Loss of lighting or communication * Power outage, a loss of electric power * Blackout (broadcasting), a regulatory or contractual ban on the broadcasting of an event * Blackout (fabric), a textile material that blocks light * Blackout (wartime), the practice of minimizing outdoor lighting for protection from attack * Communications blackout, a halt to communication abilities or utilization * Media blackout, censorship of news related to a certain topic * Protests against SOPA and PIPA, the 2012 web blackout * Internet blackout, complete or partial failure of the internet services Medicine * Blackout (drug-related amnesia), loss of memory with medicines or alcoholic beverages * Blackout or lost time, a common symptom of psychogenic amnesia and dissociative identity disorder * Syncope (medicine), a loss of consciousness, also known as fainting * Freediving blackout, a loss of consciousness caused by cerebral hypoxia towards t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford University Press
Oxford University Press (OUP) is the publishing house of the University of Oxford. It is the largest university press in the world. Its first book was printed in Oxford in 1478, with the Press officially granted the legal right to print books by decree in 1586. It is the second-oldest university press after Cambridge University Press, which was founded in 1534. It is a department of the University of Oxford. It is governed by a group of 15 academics, the Delegates of the Press, appointed by the Vice Chancellor, vice-chancellor of the University of Oxford. The Delegates of the Press are led by the Secretary to the Delegates, who serves as OUP's chief executive and as its major representative on other university bodies. Oxford University Press has had a similar governance structure since the 17th century. The press is located on Walton Street, Oxford, Walton Street, Oxford, opposite Somerville College, Oxford, Somerville College, in the inner suburb of Jericho, Oxford, Jericho. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Happy Time
The Second Happy Time (; officially (), and also known among German submarine commanders as the "American Shooting Season") was a phase in the Battle of the Atlantic during which Axis submarines attacked merchant shipping and Allied naval vessels along the east coast of North America. The First Happy Time was in 1940–41 in the North Atlantic and North Sea. Adolf Hitler and Benito Mussolini declared war on the United States on 11 December 1941, and as a result their navies could begin the Second Happy Time. The Second Happy Time lasted from January 1942 to about August of that year and involved several German naval operations, including Operation Neuland. German submariners named it the "Happy Time" or the "Golden Time", as defense measures were weak and disorganized, and the U-boats were able to inflict massive damage with little risk. During this period, Axis submarines sank 609 ships totaling , against a loss of only 22 U-boats. This led to the loss of thousands of live ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
