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System Of Measurement A SYSTEM OF MEASUREMENT is a collection of units of measurement and rules relating them to each other. Systems of measurement have historically been important, regulated and defined for the purposes of science and commerce . Systems of measurement in modern use include the metric system , the imperial system , and United States United States customary units [...More...]  "System Of Measurement" on: Wikipedia Yahoo 

Fathom A FATHOM is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres), used especially for measuring the depth of water. There are two yards (6 feet ) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard . Formerly, the term was used for any of several units of length varying around 5–5 1⁄2 feet (1.5–1.7 m) [...More...]  "Fathom" on: Wikipedia Yahoo 

Road Signage Legislation (UK) The TRAFFIC SIGNS REGULATIONS AND GENERAL DIRECTIONS (commonly abbreviated to TSRGD) is the law that sets out the design and conditions of use of official traffic signs that can be lawfully placed on or near roads in Great Britain Great Britain ( England England , Scotland Scotland and Wales ) and the Isle of Man Isle of Man . The regulations were the result of the review of British road signage carried out by the Worboys Committee . CONTENTS * 1 Versions * 2 See also * 3 References * 4 External links VERSIONSThe TSRGD was introduced on 1 January 1965 to implement the resigning recommendations of the Worboys Committee of 1963, with signage designs and typeface developed by Jock Kinneir and Margaret Calvert [...More...]  "Road Signage Legislation (UK)" on: Wikipedia Yahoo 

Knot (unit) The KNOT (/nɒt/ ) is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately 1.151 mph. The ISO Standard symbol for the knot is KN. The same symbol is preferred by the IEEE IEEE ; KT is also common. The knot is a nonSI unit that is "accepted for use with the SI". Worldwide, the knot is used in meteorology , and in maritime and air navigation—for example, a vessel travelling at 1 knot along a meridian travels approximately one minute of geographic latitude in one hour. Etymologically, the term derives from counting the number of knots in the line that unspooled from the reel of a chip log in a specific time [...More...]  "Knot (unit)" on: Wikipedia Yahoo 

Speed In everyday use and in kinematics , the SPEED of an object is the magnitude of its velocity (the rate of change of its position ); it is thus a scalar quantity. The AVERAGE SPEED of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second , but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour . For air and marine travel the knot is commonly used [...More...]  "Speed" on: Wikipedia Yahoo 

Metrication METRICATION or METRIFICATION is conversion to the metric system of units of measurement . Worldwide, there has been a long process of independent conversions of countries from various local and traditional systems, beginning in France during the 1790s and spreading widely over the following two centuries, but the metric system has not been fully adopted in all countries and sectors [...More...]  "Metrication" on: Wikipedia Yahoo 

Burma MYANMAR (Burmese pronunciation: ), officially the REPUBLIC OF THE UNION OF MYANMAR, also known as BURMA, is a sovereign state in the region of Southeast Asia . Myanmar is bordered by India and Bangladesh to its west, Thailand and Laos to its east, and China to its north and northeast. To its south, about one third of Myanmar's total perimeter of 5,876 km (3,651 miles) forms an uninterrupted coastline of 1,930 km (1,200 mi) along the Bay of Bengal and the Andaman Sea . The country's 2014 census counted a much lower population than expected, with 51 million people recorded. Myanmar is 676,578 square kilometres (261,227 sq mi) in size. Its capital city is Naypyidaw and its largest city and former capital city is Yangon (Rangoon) [...More...]  "Burma" on: Wikipedia Yahoo 

Mile The MILE is an English unit of length of linear measure equal to 5,280 feet, or 1,760 yards, and standardised as exactly 1,609.344 metres by international agreement in 1959. With qualifiers , "mile" is also used to describe or translate a wide range of units derived from or roughly equivalent to the Roman mile , such as the nautical mile (now 1.852 km exactly), the Italian mile (roughly 1.852 km), and the Chinese mile (now 500 m exactly). The Romans divided their mile into 5,000 feet but the greater importance of furlongs in premodern England meant that the statute mile was made equivalent to 8 furlongs or 5,280 feet in 1593. This form of the mile then spread to the Britishcolonized nations who continue to employ the mile [...More...]  "Mile" on: Wikipedia Yahoo 

United States Coordinates : 40°N 100°W / 40°N 100°W / 40; 100 United States United States of America Flag Great Seal MOTTO: " In God We Trust " Other traditional mottos * " E pluribus unum [...More...]  "United States" on: Wikipedia Yahoo 

Decimal Point A DECIMAL MARK is a symbol used to separate the integer part from the fractional part of a number written in decimal form. Different countries officially designate different symbols for the decimal mark. The choice of symbol for the decimal mark also affects the choice of symbol for the thousands separator used in digit grouping, so the latter is also treated in this article. In mathematics the decimal mark is a type of radix point , a term that also applies to number systems with bases other than ten [...More...]  "Decimal Point" on: Wikipedia Yahoo 

League (unit) A LEAGUE is a unit of length (or, in various regions, area). It was common in Europe and Latin America, but is no longer an official unit in any nation. The word originally meant the distance a person could walk in an hour. Since the Middle Ages, many values have been specified in several countries. CONTENTS* 1 Different definitions * 1.1 Englishspeaking world * 1.2 Ancient Rome * 1.3 Argentina * 1.4 Brazil and Portugal * 1.5 France * 1.6 Mexico * 1.7 Spain * 1.8 United States * 2 Comparison table * 3 See also * 4 References DIFFERENT DEFINITIONSENGLISHSPEAKING WORLDOn land, the league is most commonly defined as three miles , though the length of a mile could vary from place to place and depending on the era. At sea, a league is three nautical miles (3.452 miles; 5.556 kilometres). English usage also included many of the other leagues mentioned below (for example, in discussing the Treaty of Tordesillas ) [...More...]  "League (unit)" on: Wikipedia Yahoo 

Stadia (length) The STADION (Greek : στάδιον; Latin : stadium), formerly also anglicized as STADE, was an ancient Greek unit of length , based on the length of a typical sports stadium of the time. According to Herodotus Herodotus , one stadion was equal to 600 Greek feet (pous). However, the length of the foot varied in different parts of the Greek world, and the length of the stadion has been the subject of argument and hypothesis for hundreds of years. Various hypothetical equivalent lengths have been proposed, and some have been named. Among them are: STADE NAME LENGTH (APPROXIMATE) DESCRIPTION PROPOSED BY Itinerary 157 m used in measuring the distance of a journey. Jean Antoine Letronne Jean Antoine Letronne , 1816 Olympic 176 m 600 × 294 mm Carl Ferdinand Friedrich LehmannHaupt , 1929 Ptolemaic or Attic 185 m 600 × 308 mm Otto Cuntz , 1923; D.R [...More...]  "Stadia (length)" on: Wikipedia Yahoo 

Liberia Coordinates : 6°30′N 9°30′W / 6.500°N 9.500°W / 6.500; 9.500 Republic of Liberia Flag Coat of arms MOTTO: "The love of liberty brought us here" ANTHEM: All Hail, Liberia, Hail! Location of Liberia Liberia (dark blue) – in [...More...]  "Liberia" on: Wikipedia Yahoo 

Gaussian Units GAUSSIAN UNITS constitute a metric system of physical units . This system is the most common of the several electromagnetic unit systems based on cgs (centimetre–gram–second) units . It is also called the GAUSSIAN UNIT SYSTEM, GAUSSIANCGS UNITS, or often just CGS UNITS. The term "cgs units" is ambiguous and therefore to be avoided if possible: cgs contains within it several conflicting sets of electromagnetism units, not just Gaussian units, as described below. The most common alternative to Gaussian units Gaussian units are SI units . SI units are predominant in most fields, and continue to increase in popularity at the expense of Gaussian units. (Other alternative unit systems also exist, as discussed below.) Conversions between Gaussian units and SI units are not as simple as normal unit conversions [...More...]  "Gaussian Units" on: Wikipedia Yahoo 

Power (physics) In physics, POWER is the rate of doing work . It is the amount of energy consumed per unit time. Having no direction, it is a scalar quantity. In the SI system , the unit of power is the joule per second (J/s), known as the watt in honour of James Watt Watt , the eighteenthcentury developer of the steam engine . Another common and traditional measure is horsepower (comparing to the power of a horse). Being the rate of work, the equation for power can be written: P = W t {displaystyle P={frac {W}{t}}} The integral of power over time defines the work performed. Because this integral depends on the trajectory of the point of application of the force and torque, this calculation of work is said to be path dependent . As a physical concept, power requires both a change in the physical universe and a specified time in which the change occurs [...More...]  "Power (physics)" on: Wikipedia Yahoo 

Metrology METROLOGY, as defined by the International Bureau of Weights and Measures (BIPM), is "the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology". It establishes a common understanding of units, crucial in linking human activities. Modern metrology has its roots in the French Revolution French Revolution 's political motivation to standardise units in France, when a length standard taken from a natural source was proposed. This led to the creation of the decimalbased metric system in 1795, establishing a set of standards for other types of measurements. Several other countries adopted the metric system between 1795 and 1875; to ensure conformity between the countries, the Bureau International des Poids et Mesures (BIPM) was established by the Metre Convention [...More...]  "Metrology" on: Wikipedia Yahoo 