Template: Wikify the Systeme International d'Unites (SI) (English: International System of Units, Tagalog: International System of Units) the pinakagamiting system catalytic converter of units in the day-to-day trading in the world and about the world used field of science.
In 1960, selected as a subset of the SI system of units Metre-kilogram-second (MKS) system rather catalytic converter than old centimetre-gram-second (CGS). Later many new units added to the entrance of the SI. The SI system is often called metrics especially in the United States where it is not fully acceptable and in Great Britain which is still little use. A designated grounding measurement adapted and expanded from the SI system metrics. Alalaungbaga, not all metrics are units of criteria accepted as the SI unit.
Contents 1 History 2 Measurements Cultural Discussion 3 4 5 writing catalytic converter SI units Some units 5.1 5.2 Derivative yunits Main Unit Dimensions 5.3 Only No Derivative Units with special names Spelling Differences 5.4 6 7 Acknowledgements References History
Since 1640, scientists especially in France has suggested and talked with the use of a decimal system uses criteria (sasampuin) as natural units. The official said receiving system will occur after the French Revolution in 1789. Tried to system metrics selection of rational and practical unit that corresponds to the official ideology of the revolution to be "pure and righteous"; proposed it as a major development catalytic converter from a dynamic unit that was used in which the value is consistent with the region its users.
The most important unit length: one meter is set equal to a portion of the 10 million (1/10000000) distance from the Pole (pole) to the equator (equator) of meridyan passing in Paris. Nearly 10% it's longer than a yard. When eventually, a shaft made of platinum with hard X-shaped circular section made as the basis of a meter long. Due to the difficulty in measuring true length of a square meridyan in the 18th century, the first prototype was short platinong 0.2 millimeter. During the past, set the meter as a certain catalytic converter number of wavelengths (wave length) of a Hospitalization. At present, the meter is set as the distance nilallakbay catalytic converter of light in vacuum at a certain time. Forsaken catalytic converter by setting the meter as this multipleng meridyan.
Grams the first basic unit of weight (mass) in the system metrics selected to suit the weight of a cubic centimeter (cubic centimeters) of water. [Weight the residue catalytic converter in weight; weight turn the residue mass.] In practical reasons, the reference standard is kept in the Archives de la République on 22 June 1799 as a kilogram (a cylinder of platinum). Almost 2.2 pounds a kilogram (kg shorten the Philippines). In 1889 the first generic Conference on Weight and Measures (CGPM), replacing the prototype accepted using alloy of 90% platinum and 10% iridyo. It now serves as the standard in kilograms and hidden in a trunk in Paris. Became the base unit kilogram was 1901.
Also in 1901, a kilogram of purified water to its pinakasiksikan (+3.98 degrees Celsius) under atmosphere pressure standards used in setting liters. A more than handy units massive cubic meters (cubic meter). Because a liter is an odd cubic decimeter a portion of 28 million, this assignment is left in 1964 in favor of using cubic decimeter (cubic decimeter).
The basic unit kilogram just not set according to the non-renewable nature wonders. catalytic converter Because of this assignment using a artefacts (the cylinder in Paris), it is still easy to use because it knowingly catalytic converter to compare the basis of a candidate country to set basic standards. For this reason as well as act to protect the basic criteria to sip or leakage of gas and steam, the scientists called a meeting at the Royal Society in London on 15 February 2005 mapalitang the weight of the standard kilogram in Paris as a standard by "a feature consistent in nature"; but no decision on setting it will happen before 2007.
The unit became the Celsius temperature or reverse the degree Celsius ( C) which set the mercury scale (size of mercury thermometers) is equally divided into 100 parts from the mixing of water ice as 0 C and boiling (boiling point) of purified water as 100
No comments:
Post a Comment