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George W. Melville
George Wallace Melville (January 10, 1841 – March 17, 1912) was an American engineer, Arctic explorer, and author. As chief of the Bureau of Steam Engineering, he headed a time of great expansion, technological progress and change, often in defiance of the conservative element of the Navy hierarchy. He superintended the design of 120 ships and introduced the water-tube boiler, the triple-screw propulsion system, vertical engines, the floating repair ship, and the "distilling ship." Appointed engineer in chief of the Navy, Melville reformed the service entirely, putting Navy engineers on a professional rather than an artisan footing. Melville also established an engineering experiment station near the United States Naval Academy in Annapolis. As engineer-in-chief of the Navy, he fought hard to get an appropriation of $400,000 for an experiment and testing laboratory to be located at Annapolis. He argued that such a facility would be a dependable means for testing mach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Of The Bureau Of Steam Engineering
The Bureau of Steam Engineering was a bureau of the United States Navy, created by the act of 5 July 1862, receiving some of the duties of the former Bureau of Construction, Equipment and Repair. It became, by the Naval Appropriation Act of 4 June 1920, the Bureau of Engineering (BuEng). In 1940 it combined with the Bureau of Construction and Repair (BuC&R) and became the Bureau of Ships (BuShips). Historical background "Engineering, both in operating the shipboard machinery and in the design and construction of ships, became critically important with the outbreak of the Civil War. The Navy had to blockade a ‘coastline stretching over 3,000 miles from the Potomac to the Mexican border. It had to support the Army on the rivers; it had to search out and destroy Confederate raiders. For all these purposes, the steam engine and the engineer were indispensable. On the day of battle, steam engines drove the ''Monitor'' and the ''Merrimack'', the ''Kearsarge'' and the ''Alabama'', as w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller (ship)
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the blade to the water at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Order Of The Loyal Legion Of The United States
The Military Order of the Loyal Legion of the United States (MOLLUS), or simply the Loyal Legion is a United States patriotic order, organized April 15, 1865, by three veteran officers of the Army. The original membership was composed of members of the Army, Navy, or Marine Corps of the United States, who had served during the American Civil War as commissioned officers in Federal service, or who had served and thereafter been commissioned, and who thereby "had aided in maintaining the honor, integrity, and supremacy of the national movement" during the Civil War. The Loyal Legion was formed by in response to rumors from Washington of a conspiracy to destroy the Federal government by assassination of its leaders, in the immediate aftermath of the assassination of President Abraham Lincoln. The founding members stated their purpose as the cherishing of the memories and associations of the war waged in defense of the unity and indivisibility of the Republic; the strengthening of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asiatic Squadron
The Asiatic Squadron was a squadron of United States Navy warships stationed in East Asia during the latter half of the 19th century. It was created in 1868 when the East India Squadron was disbanded. Vessels of the squadron were primarily involved in matters relating to American commerce with China and Japan, though it participated in several conflicts over 34 years of service until becoming the Asiatic Fleet in 1902. History Korean Expedition In May 1871, Rear Admiral John Rodgers went to Korea, commanding an expedition of five Asiatic Squadron vessels, the screw frigate , the screw sloops-of-war and , the sidewheel gunboat , and the screw tug . The objective of the operation was to ascertain the fate of the merchant ship SS ''General Sherman'', establish trade relations, and receive an assurance from the Joseon government that shipwrecked American sailors would be safely treated should they become stranded in Korea. On 1 June 1871, while Rear Admiral Rodgers was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hampton Roads, Virginia
Hampton Roads is the name of both a body of water in the United States that serves as a wide channel for the James, Nansemond and Elizabeth rivers between Old Point Comfort and Sewell's Point where the Chesapeake Bay flows into the Atlantic Ocean, and the surrounding metropolitan region located in the southeastern Virginia and northeastern North Carolina portions of the Tidewater Region. Comprising the Virginia Beach–Norfolk–Newport News, VA–NC, metropolitan area and an extended combined statistical area that includes the Elizabeth City, North Carolina, micropolitan statistical area and Kill Devil Hills, North Carolina, micropolitan statistical area, Hampton Roads is known for its large military presence, ice-free harbor, shipyards, coal piers, and miles of waterfront property and beaches, all of which contribute to the diversity and stability of the region's economy. The body of water known as Hampton Roads is one of the world's largest natural harbors (more accurate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lakes, which are Lake Superior, Superior, Lake Michigan, Michigan, Lake Huron, Huron, Lake Erie, Erie, and Lake Ontario, Ontario and are in general on or near the Canada–United States border. Hydrologically, lakes Lake Michigan–Huron, Michigan and Huron are a single body joined at the Straits of Mackinac. The Great Lakes Waterway enables modern travel and shipping by water among the lakes. The Great Lakes are the largest group of freshwater lakes on Earth by total area and are second-largest by total volume, containing 21% of the world's surface fresh water by volume. The total surface is , and the total volume (measured at the low water datum) is , slightly less than the volume of Lake Baikal (, 22–23% of the world's surface fresh water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn Collegiate And Polytechnic Institute
The New York University Tandon School of Engineering (commonly referred to as Tandon) is the engineering and applied sciences school of New York University. Tandon is the second oldest private engineering and technology school in the United States. The school dates back to 1854 when its predecessor institutions, the University of the City of New York School of Civil Engineering and Architecture and the Brooklyn Collegiate and Polytechnic Institute, were founded. The school was renamed in 2015 in honor of NYU Trustees Chandrika and Ranjan Tandon following their donation of $100 million to the school. The school's main campus is in Brooklyn's MetroTech Center, an urban academic-industrial research park. It is one of several engineering schools that were founded based on a European polytechnic university model in the 1800s, in response to the increasing industrialization of the United States. It has been a key center of research in the development of microwave, wireless, radar, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congressional Gold Jeannette Medal
The Jeannette Medal is a Congressional Gold Medal awarded in 1890, to officers and crew of the ''Jeannette'' expedition. Eight gold and twenty-five silver medals were struck, resulting in all thirty-three members of the crew receiving a medal. Twenty of the crew died during the expedition. Statute "''Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled,'' That the President be, and hereby is, authorized, by and with the advice and consent of the Senate, to advance Chief Engineer George Wallace Melville, United States Navy, one grade, to take rank from the same date but next after the junior chief engineer having the relative rank of commander at the passage of this act, as a recognition of his meritorious services in successfully directing the party under his command after the wreck of the Arctic exploring steamer Jeannette, and of his persistent efforts through dangers and hardships to find and assist his commanding off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Congress
The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washington, D.C. Senators and representatives are chosen through direct election, though vacancies in the Senate may be filled by a governor's appointment. Congress has 535 voting members: 100 senators and 435 representatives. The U.S. vice president has a vote in the Senate only when senators are evenly divided. The House of Representatives has six non-voting members. The sitting of a Congress is for a two-year term, at present, beginning every other January. Elections are held every even-numbered year on Election Day. The members of the House of Representatives are elected for the two-year term of a Congress. The Reapportionment Act of 1929 establishes that there be 435 representatives and the Uniform Congressional Redistricting Act requires ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. It is called the True North Pole to distinguish from the Magnetic North Pole. The North Pole is by definition the northernmost point on the Earth, lying antipodally to the South Pole. It defines geodetic latitude 90° North, as well as the direction of true north. At the North Pole all directions point south; all lines of longitude converge there, so its longitude can be defined as any degree value. No time zone has been assigned to the North Pole, so any time can be used as the local time. Along tight latitude circles, counterclockwise is east and clockwise is west. The North Pole is at the center of the Northern Hemisphere. The nearest land is usually said to be Kaffeklubben Island, off the northern coast of Greenland about away, though some perhaps semi-permanent gravel banks lie slightly clos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George W
George Walker Bush (born July 6, 1946) is an American politician who served as the 43rd president of the United States from 2001 to 2009. A member of the Republican Party, Bush family, and son of the 41st president George H. W. Bush, he previously served as the 46th governor of Texas from 1995 to 2000. While in his twenties, Bush flew warplanes in the Texas Air National Guard. After graduating from Harvard Business School in 1975, he worked in the oil industry. In 1978, Bush unsuccessfully ran for the House of Representatives. He later co-owned the Texas Rangers of Major League Baseball before he was elected governor of Texas in 1994. As governor, Bush successfully sponsored legislation for tort reform, increased education funding, set higher standards for schools, and reformed the criminal justice system. He also helped make Texas the leading producer of wind powered electricity in the nation. In the 2000 presidential election, Bush defeated Democratic incum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
