1.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
2.
Red Oak, Iowa
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Red Oak is a city in and the county seat of Montgomery County, Iowa, United States, located along the East Nishnabotna River. The population was 5,742 in the 2010 census, a decline from the 6,197 population in the 2000 census, Red Oak derives its name from Red Oak Creek which flows through the community and was noted for the red oaks on its banks. The first settlers arrived there in the 1850s and that courthouse remained in place until the current Montgomery County Courthouse was built in 1891. It is on the National Register of Historic Places, in 1869 the community was officially founded when the Chicago, Burlington and Quincy Railroad arrived. The community was named Red Oak Junction by the railroad on March 20,1876, the junction was a line off the main Chicago to Council Bluffs, Iowa line that went to Nebraska City, Nebraska and on to Lincoln, Nebraska. The Junction name was dropped in 1901 although the community continues to celebrate its history each summer in Junction Days, in 1903 a new depot was opened by the railroad. It today serves as a museum celebrating the significant military heritage and its disproportionate number of casualties in various wars. The depot is one of nine places in Montgomery County on the National Register of Historic Places listings in Montgomery County, Iowa. Darwin R. Merritt, born in Red Oak on April 12,1872, graduated third in his class from the United States Naval Academy in Annapolis, Maryland on July 1,1897. On February 15,1898, he perished in the explosion that sank the USS Maine in the harbor of Havana and his body was later recovered and interred in Evergreen Cemetery in Red Oak. The community has had a number of casualties in the Civil War. In the American Civil War, the area provided more Union troops per capita than any other in the state, company M had 160 casualties among its 250 members,52 men were killed in action. Early World War II battles claimed a number of soldiers from Red Oak. In the Battle of the Kasserine Pass in February 1943, forty-five soldiers from Red Oak alone were captured or killed, at the time more than 100 telegrams arrived in Red Oak saying that its soldiers were missing in action. In recognition of Red Oaks extraordinary sacrifice, the name was given to a victory ship. The SS Red Oak Victory has become a museum in the shipyard where it was built, in Richmond. The old Burlington Northern depot has been transformed into a museum telling this history, the Red Oak School District was established in 1870, while Webster Eaton first published the Red Oak Express newspaper in 1868. Red Oak is located at 41°0′42″N 95°13′38″W, according to the United States Census Bureau, the city has a total area of 4.01 square miles, of which,3.95 square miles is land and 0.06 square miles is water
3.
Richmond, California
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Richmond is a city in western Contra Costa County, California, United States. The city was incorporated on August 7,1905, under the McLaughlin Administration, Richmond was the largest city in the United States served by a Green Party mayor. As of the 2010 U. S. Census, the population is at 103,710. The largest, Richmond, Virginia, is the namesake of the California city, the Ohlone Indians were the first inhabitants of the Richmond area, settling an estimated 5,000 years ago. The name Richmond appears to predate actual incorporation by more than fifty years, the Atchison, Topeka and Santa Fe Railroad had its terminus at Richmond. The first post office opened in 1900, Richmond was founded and incorporated in 1905, carved out of Rancho San Pablo, from which the nearby town of San Pablo inherited its name. Until the enactment of prohibition in 1919, the city had the largest winery in the world, in the 1920s the Ku Klux Klan was active in the city. In 1930 the Ford Motor Company opened a plant called Richmond Assembly Plant which moved to Milpitas in the 1960s. The old Ford plant has been a National Historic Place since 1988, the city was a small town at that time, until the onset of World War II which brought on a rush of migrants and a boom in the industrial sector. Standard Oil set up here in 1901, including a what is now the Chevron Richmond Refinery and tank farm. There is a pier into San Francisco Bay south of Point Molate for oil tankers, the western terminus of the Santa Fe Railroad was established in Richmond with ferry connections at Ferry Point in the Brickyard Cove area of Point Richmond to San Francisco. Many of these lived in specially constructed houses scattered throughout the San Francisco Bay Area, including Richmond, Berkeley. A specially built rail line, the Shipyard Railway, transported workers to the shipyards, kaisers Richmond shipyards built 747 Victory and Liberty ships for the war effort, more than any other site in the U. S. The city broke many records and even built one Liberty ship in a five days. On average the yards could build a ship in thirty days, the medical system established for the shipyard workers at the Richmond Field Hospital eventually became todays Kaiser Permanente HMO. It remained in operation until 1993 when it was replaced by the modern Richmond Medical Center hospital, Point Richmond was originally the commercial hub of the city, but a new downtown arose in the center of the city. It was populated by many department stores such as Kress, J. C. Penney, Sears, Macys, during the war the population increased dramatically and peaked at around 120,000 by the end of the war. Once the war ended the workers were no longer needed
4.
IMO number
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The International Maritime Organization number is a unique reference for ships and for registered ship owners and management companies. IMO numbers were introduced under the SOLAS Convention to improve safety and security. For ships, the IMO number remains linked to the hull for its lifetime, regardless of a change in name, flag, or owner. The ship number consists of the three letters IMO followed by a unique number assigned to sea-going merchant ships under the International Convention for the Safety of Life at Sea. In 1987 the IMO adopted Resolution A, in the SOLAS Convention cargo ships means ships which are not passenger ships. Passenger ships should carry the marking on a horizontal surface visible from the air. When introduced, the IMO adopted the existing unique ship numbers applied to ships listed by Lloyds Register since 1963, IMO ship identification numbers are assigned by IHS Fairplay. For new vessels the IMO number is assigned to a hull during construction, the IMO ship identification number is made of the three letters IMO followed by the seven-digit number. This consists of a six-digit sequential unique number followed by a check digit, the integrity of an IMO number can be verified using its check digit. This is done by multiplying each of the first six digits by a factor of 2 to 7 corresponding to their position from right to left, the rightmost digit of this sum is the check digit. For example, for IMO9074729, + + + + + =139, in May 2005, IMO adopted a new SOLAS regulation XI-1/3-1 on the mandatory company and registered owner identification number scheme, with entry into force on 1 January 2009. Like the IMO ship number, the identification number is a seven-digit number with the prefix IMO
5.
Cargo ship
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A cargo ship or freighter is any sort of ship or vessel that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the worlds seas and oceans each year, cargo ships are usually specially designed for the task, often being equipped with cranes and other mechanisms to load and unload, and come in all sizes. Today, they are almost always built by welded steel, cargo ships/freighters can be divided into five groups, according to the type of cargo they carry. Tankers carry petroleum products or other liquid cargo, dry bulk carriers carry coal, grain, ore and other similar products in loose form. Multi-purpose vessels, as the name suggests, carry different classes of cargo – e. g. liquid, a Reefer ship is specifically designed and used for shipping perishable commodities which require temperature-controlled, mostly fruits, meat, fish, vegetables, dairy products and other foodstuffs. Specialized types of cargo vessels include ships and bulk carriers. Cargo ships fall into two categories that reflect the services they offer to industry, liner and tramp services. Those on a published schedule and fixed tariff rates are cargo liners. Tramp ships do not have fixed schedules, users charter them to haul loads. Generally, the shipping companies and private individuals operate tramp ships. Cargo liners run on fixed schedules published by the shipping companies, each trip a liner takes is called a voyage. However, some cargo liners may carry passengers also, a cargo liner that carries 12 or more passengers is called a combination or passenger-cum-cargo line. The desire to trade routes over longer distances, and throughout more seasons of the year. Before the middle of the 19th century, the incidence of piracy resulted in most cargo ships being armed, sometimes heavily, as in the case of the Manila galleons. They were also escorted by warships. Piracy is still common in some waters, particularly in the Malacca Straits. In 2004, the governments of three nations agreed to provide better protection for the ships passing through the Straits. The waters off Somalia and Nigeria are also prone to piracy, while smaller vessels are also in danger along parts of the South American, Southeast Asian coasts, the words cargo and freight have become interchangeable in casual usage
6.
Horsepower
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Horsepower is a unit of measurement of power. There are many different standards and types of horsepower, two common definitions being used today are the mechanical horsepower, which is approximately 746 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of engines with the power of draft horses. It was later expanded to include the power of other types of piston engines, as well as turbines, electric motors. The definition of the unit varied among geographical regions, most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on January 1,2010, units called horsepower have differing definitions, The mechanical horsepower, also known as imperial horsepower equals approximately 745.7 watts. It was defined originally as exactly 550 foot-pounds per second [745.7 N. m/s), the metric horsepower equals approximately 735.5 watts. It was defined originally as 75 kgf-m per second is approximately equivalent to 735.5 watts, the Pferdestärke PS is a name for a group of similar power measurements used in Germany around the end of the 19th century, all of about one metric horsepower in size. The boiler horsepower equals 9809.5 watts and it was used for rating steam boilers and is equivalent to 34.5 pounds of water evaporated per hour at 212 degrees Fahrenheit. One horsepower for rating electric motors is equal to 746 watts, one horsepower for rating Continental European electric motors is equal to 735 watts. Continental European electric motors used to have dual ratings, one British Royal Automobile Club horsepower can equal a range of values based on estimates of several engine dimensions. It is one of the tax horsepower systems adopted around Europe, the development of the steam engine provided a reason to compare the output of horses with that of the engines that could replace them. He had previously agreed to take royalties of one third of the savings in coal from the older Newcomen steam engines and this royalty scheme did not work with customers who did not have existing steam engines but used horses instead. Watt determined that a horse could turn a mill wheel 144 times in an hour, the wheel was 12 feet in radius, therefore, the horse travelled 2.4 × 2π ×12 feet in one minute. Watt judged that the horse could pull with a force of 180 pounds-force. So, P = W t = F d t =180 l b f ×2.4 ×2 π ×12 f t 1 m i n =32,572 f t ⋅ l b f m i n. Watt defined and calculated the horsepower as 32,572 ft·lbf/min, Watt determined that a pony could lift an average 220 lbf 100 ft per minute over a four-hour working shift. Watt then judged a horse was 50% more powerful than a pony, engineering in History recounts that John Smeaton initially estimated that a horse could produce 22,916 foot-pounds per minute
7.
Water-tube boiler
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A watertube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes, in smaller boilers, additional generating tubes are separate in the furnace, while larger utility boilers rely on the water-filled tubes that make up the walls of the furnace to generate steam. The heated water rises into the steam drum. Here, saturated steam is drawn off the top of the drum, in some services, the steam will reenter the furnace through a superheater to become superheated. Superheated steam is defined as steam that is heated above the point at a given pressure. Superheated steam is a dry gas and therefore used to drive turbines, cool water at the bottom of the steam drum returns to the feedwater drum via large-bore downcomer tubes, where it pre-heats the feedwater supply. To increase economy of the boiler, exhaust gases are used to pre-heat the air blown into the furnace. Such watertube boilers in thermal power stations are called steam generating units.4 MPa. A water tube boiler was patented by Blakey of England in 1766 and was made by Dallery of France in 1780. e, approximately 16 megapascals and high temperatures reaching up to 550 °C are generally required. For example, the Ivanpah solar-power station uses two Rentech Type-D watertube boilers, modern boilers for power generation are almost entirely water-tube designs, owing to their ability to operate at higher pressures. Where process steam is required for heating or as a chemical component and their ability to work at higher pressures has led to marine boilers being almost entirely water-tube. This change began around 1900, and traced the adoption of turbines for propulsion rather than reciprocating engines – although watertube boilers were used with reciprocating engines. There has been no significant adoption of water-tube boilers for railway locomotives, a handful of experimental designs were produced, but none of these were successful or led to their widespread use. Most water-tube railway locomotives, especially in Europe, used the Schmidt system, most were compounds, and a few uniflows. The Norfolk and Western Railways Jawn Henry was an exception, as it used a steam turbine combined with an electric transmission, LMS6399 Fury Rebuilt completely after a fatal accident LNER10000 Hush hush Using a Yarrow boiler, rather than Schmidt. Never successful and re-boilered with a conventional boiler, a slightly more successful adoption was the use of hybrid water-tube / fire-tube systems. As the hottest part of a boiler is the firebox, it was an effective design to use a water-tube design here. One famous example of this was the USA Baldwin 4-10-2 No, operating as a compound at a boiler pressure of 2,400 kilopascals it covered over 160,000 kilometres successfully
United States
