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Howell Torpedo
The Howell Automobile Torpedo was the first self-propelled torpedo produced in quantity by the United States Navy, which referred to it as the Howell Mark I torpedo. It was conceived by Lieutenant Commander John A. Howell, United States Navy, in 1870, using a 60 kg (130 lb) flywheel spun at a very high speed (10000 to 12000 rpm) to store energy and drive propellers. Design Because it had no complicated engine and fuel system, the Howell was much cheaper and easier to build than its main competitor, the Whitehead. In addition, unlike the Whitehead, the Howell was wakeless, not giving away the position of the firing vessel; its flywheel was, however, very noisy. It did demand a steam turbine to "spin up" the flywheel (a complication inherent to the design). Also unlike the contemporary Whitehead, the Howell kept running in a straight line, due to the gyroscopic effect of the flywheel. A wave coming from one side would tend to roll the Howell rather than deviate it. The r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-surface Warfare
Anti-surface warfare (ASuW or ASUW) is the branch of naval warfare concerned with the suppression of surface combatants. More generally, it is any weapons, sensors, or operations intended to attack or limit the effectiveness of an adversary's surface ships. Before the adoption of the submarine and naval aviation, all naval warfare consisted of anti-surface warfare. The distinct concept of an anti-surface warfare capability emerged after World War II, and literature on the subject as a distinct discipline is inherently dominated by the dynamics of the Cold War. Categories of anti-surface warfare Anti-surface warfare can be divided into four categories based on the platform from which weapons are launched: * Air (or aviation): Anti-surface warfare conducted by aircraft. Historically, this was conducted primarily through level- or dive-bombing, strafing runs or air-launching torpedoes (and in some cases by suicide attacks). Today, air ASuW is generally conducted by stand-off a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent Infringement
Patent infringement is the commission of a prohibited act with respect to a patented invention without permission from the patent holder. Permission may typically be granted in the form of a license. The definition of patent infringement may vary by jurisdiction, but it typically includes using or selling the patented invention. In many countries, a use is required to be ''commercial'' (or to have a ''commercial'' purpose) to constitute patent infringement. The scope of the patented invention or the extent of protection is defined in the claims of the granted patent. In other words, the terms of the claims inform the public of what is not allowed without the permission of the patent holder. Patents are territorial, and infringement is only possible in a country where a patent is in force. For example, if a patent is granted in the United States, then anyone in the United States is prohibited from making, using, selling or importing the patented item, while people in other co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bliss-Leavitt Torpedo
The Bliss-Leavitt torpedo was a torpedo designed by Frank McDowell Leavitt and manufactured by the E. W. Bliss Company of Brooklyn, New York. It was put into service by the United States Navy in 1904 and variants of the design would remain in its inventory until the end of World War II. History The E. W. Bliss Company secured manufacturing rights to the Whitehead torpedo in 1892 and thereafter supplied the US Navy with this weapon. In 1904, an engineer with E. W. Bliss, Frank M. Leavitt, designed a torpedo with a "single-stage vertical turbine engine" that utilized compressed air preheated by alcohol. This design became the Bliss-Leavitt Mark 1 torpedo, the first non-Whitehead design after the Howell torpedo. The Mark 1 had a tendency to roll, affecting its directional stability. This was remedied by Lieutenant Gregory C. Davison who proposed a two-stage turbine design that drove contra-rotating propellers. This cancelled the torque effect of the single-stage design, improv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schwartzkopff Torpedo
The Schwartzkopff torpedo was a torpedo manufactured in the late 19th century by the German firm ''Eisengießerei und Maschinen-Fabrik von L. Schwartzkopff'', later known as Berliner Maschinenbau, based on the Whitehead design. Unlike the Whitehead torpedo, which was manufactured out of steel, the Schwartzkopff was made out of bronze, enhancing corrosion resistance. Design In 1866 Robert Whitehead, working on a design by Giovanni Luppis, perfected what came to be known as the Whitehead torpedo. Whitehead's Fiume torpedo works then became a meeting place for business associates and potential customers. One such visitor was Louis Victor Robert Schwartzkopff, the owner of the German firm Berliner Maschinenbau. On the last night of Schwartzkopff's visit, a disturbance had reportedly taken place in the plant's drawing room. In the morning, it was discovered that someone had broken in and stolen a set of torpedo plans. Whitehead maintained that Schwartzkopff had nothing to do with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Undersea Museum
The United States Naval Undersea Museum is a naval museum located at Keyport, Washington. It is one of the 10 Navy museums that are operated by the Naval History & Heritage Command. It sits next to a branch of the Naval Undersea Warfare Center. History The Naval Undersea Museum Foundation is a 501(c)(3) non-profit Washington State corporation established in 1980 as a philanthropic organization. Through fund-raising efforts of the Foundation, the Naval Undersea Museum and Conference Center complex in Keyport, Washington, opened in 1995. The Naval Undersea Museum combines naval history, undersea technology, and marine science. This new building, filled with more than of exhibits, holds the largest collection of naval undersea history and science artifacts in the United States. The museum's research library contains more than 6,500 volumes that support the exhibits and provide extensive information on undersea history, science, and operations. It also holds a complete set of World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronado, California
Coronado (Spanish for "Crowned") is a resort city located in San Diego County, California, United States, across the San Diego Bay from downtown San Diego. It was founded in the 1880s and incorporated in 1890. Its population was 24,697 at the 2010 census, up from 24,100 at the 2000 census. Coronado is a tied island which is connected to the mainland by a tombolo (a sandy isthmus) called the Silver Strand. The explorer Sebastian Vizcaino gave Coronado its name and drew its first map in 1602. Coronado is Spanish term for "crowned" and thus it is nicknamed ''The Crown City''. Its name is derived from the Coronado Islands, an offshore Mexican archipelago. Three ships of the United States Navy have been named after the city, including . History Prior to European settlement, Coronado was inhabited by the Kumeyaay, who sustained fishing villages on the peninsula in North Island and on the Coronado Cays. As American settlers moved into the area, the Kumeyaay were pushed out of Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy Marine Mammal Program
The U.S. Navy Marine Mammal Program (NMMP) is a program administered by the U.S. Navy which studies the military use of marine mammals - principally bottlenose dolphins and California sea lions - and trains animals to perform tasks such as ship and harbor protection, mine detection and clearance, and equipment recovery. The program is based in San Diego, California, where animals are housed and trained on an ongoing basis. NMMP animal teams have been deployed for use in combat zones, such as during the Vietnam War and the Iraq War. The program has been dogged by controversy over the treatment of the animals and speculation as to the nature of its mission and training. This has been due at least in part to the secrecy of the program, which was de-classified in the early 1990s. Since the program's inception, there have been ongoing animal welfare concerns, with many opposing the use of marine mammals in military applications, even in essentially non-combatant roles such as mine de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howell Torpedo Blades
Howell may refer to: Places In the United Kingdom *Howell, Lincolnshire, England In the United States *Howell, Georgia * Howell, Evansville, a neighborhood of Evansville, Indiana *Howell, Michigan *Howell, Missouri * Howell, Utah *Howell County, Missouri *Howell High School (Howell, Michigan) *Howell High School (New Jersey) *Howell Mountain, California **Howell Mountain AVA, an American Viticultural Area in Napa County, California *Howell Township (other), several places Business establishments *Böwe Bell & Howell, American manufacturer and supplier of media technologies *Howells (department store), large department store in Cardiff, Wales, established by James Howell *Howell, Soskin, a defunct American publisher acquired by Crown Books *John Howell & Son, British building and engineering company Other uses *Howell (name), a surname and given name *Howell torpedo, an early type of U.S. Navy torpedo *Howell, a table movement system used in duplicate bridge (see D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howell Torpedo Fly Wheel
Howell may refer to: Places In the United Kingdom *Howell, Lincolnshire, England In the United States *Howell, Georgia * Howell, Evansville, a neighborhood of Evansville, Indiana *Howell, Michigan *Howell, Missouri * Howell, Utah *Howell County, Missouri *Howell High School (Howell, Michigan) *Howell High School (New Jersey) *Howell Mountain, California **Howell Mountain AVA, an American Viticultural Area in Napa County, California *Howell Township (other), several places Business establishments *Böwe Bell & Howell, American manufacturer and supplier of media technologies *Howells (department store), large department store in Cardiff, Wales, established by James Howell *Howell, Soskin, a defunct American publisher acquired by Crown Books *John Howell & Son, British building and engineering company Other uses *Howell (name), a surname and given name *Howell torpedo, an early type of U.S. Navy torpedo *Howell, a table movement system used in duplicate bridge (see D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid digital media, digital subscribers. It also is a producer of popular podcasts such as ''The Daily (podcast), The Daily''. Founded in 1851 by Henry Jarvis Raymond and George Jones (publisher), George Jones, it was initially published by Raymond, Jones & Company. The ''Times'' has won List of Pulitzer Prizes awarded to The New York Times, 132 Pulitzer Prizes, the most of any newspaper, and has long been regarded as a national "newspaper of record". For print it is ranked List of newspapers by circulation, 18th in the world by circulation and List of newspapers in the United States, 3rd in the U.S. The paper is owned by the New York Times Company, which is Public company, publicly traded. It has been governed by the Sulzberger family since 189 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhode Island
Rhode Island (, like ''road'') is a state in the New England region of the Northeastern United States. It is the smallest U.S. state by area and the seventh-least populous, with slightly fewer than 1.1 million residents as of 2020, but it is the second-most densely populated after New Jersey. It takes its name from the eponymous island, though most of its land area is on the mainland. Rhode Island borders Connecticut to the west; Massachusetts to the north and east; and the Atlantic Ocean to the south via Rhode Island Sound and Block Island Sound. It also shares a small maritime border with New York. Providence is its capital and most populous city. Native Americans lived around Narragansett Bay for thousands of years before English settlers began arriving in the early 17th century. Rhode Island was unique among the Thirteen British Colonies for being founded by a refugee, Roger Williams, who fled religious persecution from the Massachusetts Bay Colony to establish a ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Providence, Rhode Island
Providence is the capital and most populous city of the U.S. state of Rhode Island. One of the oldest cities in New England, it was founded in 1636 by Roger Williams, a Reformed Baptist theologian and religious exile from the Massachusetts Bay Colony. He named the area in honor of "God's merciful Providence" which he believed was responsible for revealing such a haven for him and his followers. The city developed as a busy port as it is situated at the mouth of the Providence River in Providence County, at the head of Narragansett Bay. Providence was one of the first cities in the country to industrialize and became noted for its textile manufacturing and subsequent machine tool, jewelry, and silverware industries. Today, the city of Providence is home to eight hospitals and eight institutions of higher learning which have shifted the city's economy into service industries, though it still retains some manufacturing activity. At the 2020 census, Providence had a populati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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