In the s, the French defined the meter as one ten-millionth of the distance from the North Pole to the equator as it passed along a meridian to Paris. This actual measurement is represented on an iron bar that is housed in Paris. In , the definition of the meter was updated and defined more precisely.
For this definition, the meter is the distance from 0 degrees, between the axes of two central lines that are marked on a bar of platinum-iridium. The bar is subjected to standard atmospheric pressure and held on two cylinders, which are at least one centimeter in diameter, and are placed on the same horizontal plane exactly mm from each other.
In , the definition of a meter was changed again. This definition was based on the wavelength of krypton radiation. Finding a standardized, universal unit of measurement was required by science, and they set out to find a way to develop this unit so that it could be applied worldwide.
While there was some trial and error, they eventually came up with a unit that has been adopted and used by countries everywhere. Who would have ever thought the meter would have such a complicated and interesting history? Meter is the SI unit of length. Length can be expressed in other units like, centimeters, inches, feet, and yards which can be converted to meters. Though meters and inches are units of length, but their values differ.
In this article we will learn the relation between meter, centimeter, millimeter, inches, feet and yards. Stay tuned to learn more about how long is a meter!
Meter is a metric unit of length. The abbreviation of meter is "m". Examples: Diameter of a swimming pool, length of objects. In order to convert the length given in meters to different units, it is needed to know the relation between the meter and the other units.
Hence, while doing the required length conversions, these relations can be used and the lengths can be converted easily from meters to the required units. Centimeter is also a unit of distance abbreviated as, "cm".
Millimeter is abbreviated as "mm". Inches is the USCS unit mainly used to indicate length. It is abbreviated as "in". Many decimal innovators, including Thomas Jefferson, preferred standardized units to use decimal systems. As of , the only countries that have not adopted the metric system are the United States, Myanmar and Liberia. World View. How Long Is a Meter? It is the basic unit of length in the metric system and in the International System of Units SI , used around the world for general and scientific purposes.
The symbol for metre is m. This is approximately the distance from floor to hip bone on the average barefoot man. See all conversions for meters here. Its size can vary from system to system, but in each is around a quarter to a third of a metre.
The most commonly used foot today is the international foot.
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