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Slingshot
A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two tubes or strips made from either a natural rubber or synthetic elastic material. These are attached to the upper two ends. The other ends of the strips lead back to a pouch that holds the projectile. One hand holds the frame, while the other hand grasps the pocket and draws it back to the desired extent to provide power for the projectile—up to a full span of the arms with sufficiently long bands. Other names include catapult (United Kingdom), peashooter (United States), gulel (India), (South Africa), or ging, shanghai, pachoonga (Australia and New Zealand) Use and history Slingshots depend on strong Elasticity (physics), elastic materials for their projectile firepower, typically vulcanization, vulcanized natural rubber or the equivalent such as silicone rubber tubing, and thus date no earlier than the invention of vulcanized rubber by Charles Goodyear ...
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Palestinian Stone-throwing
Palestinian stone-throwing refers to a Palestinian practice of throwing stones at people or property. It is a tactic with both a symbolic and military dimension when used against heavily-armed troops. Proponents, sympathizers, as well as some analysts have characterized stone throwing by Palestinians as a form of "limited", "restrained", "non-lethal" violence. Such stone-throwing can at times prove lethal: over a dozen Israelis, including women, children, and infants, have died as a result of stones being thrown at cars. Some Palestinians appear to regard it as symbolic and non-violent, given the disparity in power and equipment between the Israeli forces and the Palestinian stone-throwers. The state of Israel has passed laws to sentence throwers convicted of the charge to up to 10 years imprisonment even without proof of intent to harm. In some cases, Israelis have argued that it should be treated as a form of terrorism, or that, in terms of the psychology of those who hurl ston ...
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Wham-O
Wham-O Inc. is an American toy company based in Carson, California, United States. It is known for creating and marketing many popular toys for nearly 70 years, including the Hula hoop, Frisbee, Slip 'N Slide, Super Ball, Trac-Ball, Silly String, Hacky sack, Wham-O Bird Ornithopter and Boogie Board, many of which have become genericized trademarks. Corporate history Richard Knerr (1925–2008) and Arthur "Spud" Melin (1924–2002), two University of Southern California graduates who were friends since their teens, were unhappy with their jobs and decided to start their own business. In 1948 they formed the WHAM-O Manufacturing Company in the Knerr family garage in South Pasadena. Their first product was the Wham-O Slingshot, made of ash wood, which Knerr and Melin promoted by holding demonstrations of their own slingshot skills. The name "Wham-O" was inspired by the sound of the slingshot's shot hitting the target. The powerful slingshot was adopted by clubs for competi ...
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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 ...
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Indiana University Press
Indiana University Press, also known as IU Press, is an academic publisher founded in 1950 at Indiana University that specializes in the humanities and social sciences. Its headquarters are located in Bloomington, Indiana. IU Press publishes approximately 100 new books annually, in addition to 38 academic journals, and maintains a current catalog comprising some 2,000 titles. Indiana University Press primarily publishes in the following areas: African, African American, Asian, cultural, Jewish, Holocaust, Middle Eastern studies, Russian and Eastern European, and women's and gender studies; anthropology, film studies, folklore, history, bioethics, music, paleontology, philanthropy, philosophy, and religion. IU Press undertakes extensive regional publishing under its Quarry Books imprint. History IU Press began in 1950 as part of Indiana University's post-war growth under President Herman B Wells. Bernard Perry, son of Harvard philosophy professor Ralph Barton Per ...
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The Guardian
''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardian'' is part of the Guardian Media Group, owned by the Scott Trust Limited. The trust was created in 1936 to "secure the financial and editorial independence of ''The Guardian'' in perpetuity and to safeguard the journalistic freedom and liberal values of ''The Guardian'' free from commercial or political interference". The trust was converted into a limited company in 2008, with a constitution written so as to maintain for ''The Guardian'' the same protections as were built into the structure of the Scott Trust by its creators. Profits are reinvested in its journalism rather than distributed to owners or shareholders. It is considered a newspaper of record in the UK. The editor-in-chief Katharine Viner succeeded Alan Rusbridger in 2015. S ...
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Hong Kong Police Force
The Hong Kong Police Force (HKPF) is the primary law enforcement, investigative agency, and largest Hong Kong Disciplined Services, disciplined service under the Security Bureau (Hong Kong), Security Bureau of Hong Kong. Pursuant to the one country, two systems principle, the HKPF is officially independent of the jurisdiction of the Ministry of Public Security (China), Ministry of Public Security of the People's Republic of China, which under usual circumstances may not interfere with Hong Kong’s local law enforcement matters. All HKPF officers are employed as civil servants and therefore required to pledge allegiance to the Hong Kong Basic Law. The HKPF consists of approximately 34,000 officers, including the Hong Kong Auxiliary Police Force, civil servants, and its Marine Region (3,000 officers and 143 vessels as of 2009). History A police force has been serving British Hong Kong, Hong Kong since shortly after the island was established as a colony in 1841. On 30 Apri ...
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Balloon
A balloon is a flexible membrane bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. For special purposes, balloons can be filled with smoke, liquid water, granular media (e.g. sand, flour or rice), or light sources. Modern day balloons are made from materials such as rubber, latex, polychloroprene, or a nylon fabric, and can come in many different colors. Some early balloons were made of dried animal bladders, such as the pig bladder. Some balloons are used for decorative purposes or entertaining purposes, while others are used for practical purposes such as meteorology, medical treatment, military defense, or transportation. A balloon's properties, including its low density and low cost, have led to a wide range of applications. The rubber balloon was invented by Michael Faraday in 1824, during experiments with various gases. He invented them for use in the lab. Applications Play Decoration Balloons are used for decorat ...
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Angling
Angling (from Old English ''angol'', meaning "hook") is a fishing technique that uses a fish hook attached to a fishing line to tether individual fish in the mouth. The fishing line is usually manipulated with a fishing rod, although rodless techniques such as handlining also exist. Modern angling rods are usually fitted with a fishing reel that functions as a crank (mechanism), cranking device for storing, retrieving and releasing out the line, although Tenkara fishing and traditional cane pole fishing are two rod-angling methods that do not use any reel. The fish hook itself can be additionally weighted with a denser fishing tackle, tackle called a sinker (fishing), sinker, and is typically dressed with an appetizing bait (luring substance), bait (i.e. hookbait) to attract and entice the fish into swallowing the hook, but sometimes an inedible fake/imitation bait with multiple attached hooks (known as a fishing lure, lure) is used instead of a single hook with edible bait. Som ...
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Aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ...
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San Marino, California
San Marino is a city in Los Angeles County, California, United States. It was incorporated on April 25, 1913. At the 2020 United States census the population was 12,513, a decline from the 2010 United States census. History Origin of name The city takes its name from the ancient Republic of San Marino, founded by Saint Marinus who fled his home in Dalmatia (modern Croatia) at the time of the Diocletianic Persecution. The seal of the City of San Marino, California is modeled on that of the republic, depicting the Three Towers of San Marino each capped with a bronze plume, surrounded by a heart-shaped scroll with two roundels and a lozenge (of unknown significance) at the top. The crown representing sovereignty on the original was replaced with five stars, representing the five members of the city's governing body. Beneath the city's seal are crossed palm fronds and orange branches. The city celebrated its centennial in 2013, including publication by the San Marino Histo ...
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