Convert Miles to Angstroms (mi to Å) ▶
How to convert
1 angstrom (Å) = 6.21371E-14 mile (mi). Angstrom (Å) is a unit of Length used in Metric system. Mile (mi) is a unit of Length used in Standard system.
Angstrom: A Small Unit of Length Used in the SI System
The angstrom is a unit of length that is equal to 0.1 nanometer (nm) or 10-10 meter (m). It is one of the non-SI units that are accepted for use with the International System of Units (SI), which is the most widely used system of measurement in the world. The symbol for angstrom is Å, a letter of the Swedish alphabet. The unit is named after the Swedish physicist Anders Jonas Ångström (1814-1874), who was a pioneer in the field of spectroscopy. The angstrom is often used in the natural sciences and technology to express sizes of atoms, molecules, microscopic biological structures, and lengths of chemical bonds, arrangement of atoms in crystals, wavelengths of electromagnetic radiation, and dimensions of integrated circuit parts. In this article, we will explore the definition, history, usage and conversion of the angstrom as a unit of length.
Definition of the Unit
The angstrom is a unit of length that is equal to 0.1 nanometer (nm) or 10-10 meter (m). It is one of the non-SI units that are accepted for use with the International System of Units (SI), which is based on seven base units: meter (length), kilogram (mass), second (time), ampere (electric current), kelvin (temperature), mole (amount of substance) and candela (luminous intensity). The SI base unit of length is the meter, which is defined as the length of the path travelled by light in vacuum during a time interval of 1/299792458 seconds.
The definition of the angstrom has not changed since its introduction in 1868 by Anders Jonas Ångström, who used it to express wavelengths of light in his chart of the spectrum of sunlight. However, the definition of the meter has changed several times over time, as different standards and methods of measurement were adopted by various countries and regions. The current definition of the meter as based on the speed of light was agreed upon by an international treaty in 1983, and since then the angstrom has been exactly equal to 10-10 meter.
History of the Unit
The origin of the angstrom as a unit of length can be traced back to 1868, when Swedish physicist Anders Jonas Ångström created a chart of the spectrum of sunlight, in which he expressed the wavelengths of electromagnetic radiation in multiples of one ten-millionth of a millimeter (or 10-7 mm). He chose this unit because it was convenient for his work on spectroscopy, which is the study of how matter interacts with electromagnetic radiation. He also named this unit after himself, as he wrote in his paper: "I have taken as unit for these measurements one ten-millionth part [of a millimeter], which I will call an Ångström".
Ångström’s unit was soon adopted by other spectroscopists and physicists, who found it useful for expressing wavelengths of visible light, ultraviolet light and X-rays. However, they soon realized that the definition of the millimeter at the time, based on a material artifact, was not accurate enough for their work. So, around 1907 they defined their own unit of length, which they called "Ångström", based on the wavelength of a specific spectral line emitted by krypton-86 gas. This new definition was more precise and stable than the previous one based on the millimeter.
In 1960, when the meter was redefined as based on a specific number of wavelengths emitted by krypton-86 gas, the angstrom became again equal to 10-10 meter. However, this definition was soon replaced by another one based on the speed of light in vacuum in 1983. Since then, the angstrom has remained unchanged as equal to 10-10 meter.
Usage of the Unit
The angstrom is a unit of length that is often used in the natural sciences and technology to express sizes of atoms, molecules, microscopic biological structures, and lengths of chemical bonds, arrangement of atoms in crystals, wavelengths of electromagnetic radiation, and dimensions of integrated circuit parts. Some examples of where the angstrom is used are:
How to Convert
The angstrom can be converted to other units of length by using conversion factors or formulas. Here are some examples of how to convert angstroms to other units of length in the U.S. customary system, the imperial system and the SI system:
Mile: A Unit of Length
The mile is a unit of length that is equal to 5,280 feet or 1,760 yards. It is based on the older English unit of length that was used before the adoption of the metric system. The mile is also a derived unit in the British imperial and US customary systems of measurement. The symbol for mile is mi or m.
The mile is most commonly used when expressing distances on land or in air travel. The mile is also used for measuring speed, such as miles per hour (mph). The mile is sometimes distinguished from other types of miles, such as the nautical mile or the geographical mile, by using the term statute mile.
In this article, we will explore the definition, history, usage and conversion of the mile as a unit of length.
Definition of the Mile
The mile is a unit of length that is equal to 5,280 feet or 1,760 yards. It is defined as 1,609.344 meters by international agreement in 1959. One foot is equal to 0.3048 meter and one yard is equal to 0.9144 meter.
The definition of the mile has changed over time, as different standards and methods of measurement were developed by various countries and organizations. The current definition of the mile as based on the meter was agreed upon by an international treaty in 1959.
History of the Mile
The origin of the mile as a unit of length can be traced back to ancient times, when it was used as a measure of distance based on the human pace. The word mile comes from the Latin word mille, which means thousand. It referred to the distance of one thousand paces, which was about 5,000 Roman feet or 1.48 kilometers.
The mile was adopted by other countries that followed the Roman system of measurement, such as England and France. It varied in length from country to country and from time to time, depending on local standards and methods of measurement.
The mile was standardized in England by an act of Parliament in 1593, which set it as a distance of 8 furlongs or 5,280 feet. A furlong was a measure of distance used for plowing fields and was equal to 660 feet or 40 rods. A rod was a measure of length used for surveying land and was equal to 16.5 feet or 5.5 yards.
The mile was adopted by other countries that followed the English system of measurement, such as the United States and Canada. It was also incorporated into the imperial system of measurement, which was established by an act of Parliament in 1824. The imperial system was based on seven base units that could be derived from natural and traditional units. The mile remained as a derived unit in the imperial system, but it was no longer recommended for use in scientific and technical fields.
Usage of the Mile
The mile is a unit of length that is used for measuring distances on land or in air travel. For example:
The mile is commonly used in everyday life, especially in countries that follow the British imperial or US customary systems of measurement. Some examples are:
The mile is also used for measuring speed, such as miles per hour (mph). This is a measure of how fast an object moves in relation to another object or point. For example:
Example Conversions of Mile to Other Units
The mile can be converted to other units of length by using different factors and formulas. Here are some examples of conversion for different types of units:
1 mi x 5,280 = 5,280 ft
1 mi x 1,760 = 1,760 yd
1 mi x 1,609.344 = 1,609.344 m
1 mi x 1.609344 = 1.609344 km
1 mi / 1.150779 = 0.868976 nmi
1 mi / 0.869 = 1.151 mi
1 ft / 5,280 = 0.000189 mi
1 yd / 1,760 = 0.000568 mi
1 m / 1,609.344 = 0.000621 mi
1 km / 1.609344 = 0.621371 mi
1 nmi x 1.150779 = 1.150779 mi
1 mi x 0.869 = 0.869 mi
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