Furlongs to Microinches
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1 furlong (fur) = 7920000000 microinch (µin). Furlong (fur) is a unit of Length used in Standard system. Microinch (µin) is a unit of Length used in Standard system.

Furlong: A Unit of Length Used in the US Customary System

The furlong (fur) is a unit of length in the US customary system, which is one of the systems of measurement used in the United States and some other countries. The furlong is equal to 220 yards, which is an eighth of a mile. The furlong is also a derived unit in the imperial system, which is the official system of measurement for the United Kingdom and some other Commonwealth countries. The symbol for furlong is fur. The furlong is used for measuring long distances and areas, such as the length of a horse race or the area of a farm. The furlong is named after the furrow-long, which was the length of a furrow in one acre of a plowed open field in medieval England. In this article, we will explore the definition, history, usage and conversion of the furlong as a unit of length.

Definition of the Unit

The furlong is a unit of length that is equal to 220 yards. It is defined as 1/8 miles. The mile is defined as 5,280 feet or 1,760 yards.

The definition of the furlong has not changed since its origin in medieval England, as part of the old English system of measurement that was based on natural and traditional units. However, the definition of the mile has changed several times 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 feet and yards was agreed upon by an international treaty in 1959.

History of the Unit

The origin of the furlong as a unit of length can be traced back to medieval England, when it was used as a measure of land area and distance. The word furlong comes from the Old English words furh (furrow) and lang (long), meaning furrow-long. It referred to the length of a furrow in one acre of a plowed open field, which was a common system of land division and cultivation at that time. The open field was divided into strips or selions, each strip being one furlong long and one rod wide. A rod was equal to 5.5 yards or 16.5 feet. An acre was equal to four rods by 40 rods, or 160 square rods.

The furlong was also used as a measure of distance for horse racing and other sports. The standard length of a horse race was four furlongs, or half a mile. This was later increased to eight furlongs, or one mile, which became known as the classic distance for horse racing.

The furlong 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, 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 furlong 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 Unit

The furlong is a unit of length that is used for measuring long distances and areas, such as the length of a horse race or the area of a farm.

The furlong is commonly used in horse racing, especially in North America and some other countries that follow the US customary system. Some examples are:

• Measuring the distance and speed of horses in races.
• Measuring the length and width of racetracks and courses.
• Measuring the height and weight of horses and jockeys.

The furlong is also used in agriculture, especially in rural areas where farms are still measured by acres and furlongs. Some examples are:

• Measuring the size and shape of fields and plots.
• Measuring the yield and production of crops and livestock.
• Measuring the distance and time between farms and markets.
• Measuring the taxes and subsidies for farmers.

How to Convert

The furlong can be converted to other units of length by using conversion factors or formulas. Here are some examples of how to convert furlongs to other units of length in the US customary system, the SI system and other systems:

• To convert furlongs to yards, multiply by 220. For example, 10 fur = 10 × 220 = 2200 yd.
• To convert furlongs to miles, divide by 8. For example, 10 fur = 10 / 8 = 1.25 mi.
• To convert furlongs to feet, multiply by 660. For example, 10 fur = 10 × 660 = 6600 ft.
• To convert furlongs to meters, multiply by 201.168. For example, 10 fur = 10 × 201.168 = 2011.68 m.
• To convert furlongs to kilometers, multiply by 0.201168. For example, 10 fur = 10 × 0.201168 = 2.01168 km.
• To convert furlongs to centimeters, multiply by 20116.8. For example, one fur = one × 20116.8 = 20116.8 cm.

Microinch: A Unit of Length

The microinch is a unit of length that is equal to one millionth of an inch (0.000001 inch). It is a non-SI unit of measurement that is mainly used in engineering and manufacturing fields. The symbol for microinch is µin or µ". The microinch is also a derived unit in the British imperial and US customary systems of measurement.

The microinch is most commonly used when expressing small distances or dimensions, such as the surface roughness or flatness of materials and parts. The microinch is also used for measuring the wavelength of light and other electromagnetic waves.

In this article, we will explore the definition, history, usage and conversion of the microinch as a unit of length.

Definition of the Microinch

The microinch is a unit of length that is equal to one millionth of an inch (0.000001 inch). It is defined as 25.4 nanometers or 2.54 × 10^-8 meters by international agreement in 1959. One inch is equal to 25.4 millimeters or 0.0254 meter.

The definition of the microinch has changed over time, as different standards and methods of measurement were developed by various countries and organizations. The current definition of the microinch as based on the meter was agreed upon by an international treaty in 1959.

History of the Microinch

The origin of the microinch as a unit of length can be traced back to the early 20th century, when it was introduced by the American Society for Testing and Materials (ASTM) as a standard for measuring surface roughness. Surface roughness is a measure of how smooth or irregular a surface is, which affects its friction, wear and corrosion properties.

The microinch was adopted by other countries and industries that followed the American system of measurement, such as Canada and Japan. It was also incorporated into the ANSI/ASME B46.1 standard for surface texture in 1985.

The microinch was also used by some optical scientists and engineers to measure the wavelength of light and other electromagnetic waves. For example, the visible spectrum of light ranges from about 4,000 to 7,000 microinches.

Usage of the Microinch

The microinch is a unit of length that is used for measuring small distances or dimensions, such as the surface roughness or flatness of materials and parts. For example:

• Measuring the smoothness or roughness of metal surfaces, such as steel, aluminum and copper.
• Measuring the flatness or curvature of glass surfaces, such as lenses, mirrors and windows.
• Measuring the thickness or diameter of thin films, coatings and wires.
• Measuring the accuracy or tolerance of machined parts, such as gears, bearings and shafts.

The microinch is commonly used in engineering and manufacturing fields, especially in precision machining, metrology and quality control. Some examples are:

• Measuring the surface finish of machined parts, such as turned, milled and ground surfaces.
• Measuring the surface profile of textured surfaces, such as honed, lapped and polished surfaces.
• Measuring the surface geometry of complex surfaces, such as grooved, fluted and serrated surfaces.
• Measuring the surface defects of defective surfaces, such as scratches, pits and dents.

The microinch is also used for measuring the wavelength of light and other electromagnetic waves. For example:

• Measuring the color or frequency of visible light, infrared light and ultraviolet light.
• Measuring the polarization or phase of coherent light, such as laser light and holographic light.
• Measuring the interference or diffraction patterns of interfering light, such as interferometric light and diffractive light.

Example Conversions of Microinch to Other Units

The microinch 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:

• To convert a microinch to inches, divide by 1,000,000:

1 µin / 1,000,000 = 0.000001 in

• To convert a microinch to feet, divide by 12,000,000:

1 µin / 12,000,000 = 8.333 × 10^^-8 ft

• To convert a microinch to yards, divide by 36,000,000:

1 µin / 36,000,000 = 2.778 × 10^^-8 yd

• To convert a microinch to meters, multiply by 2.54 × 10^^-8:

1 µin x 2.54 × 10^-8 = 2.54 × 10^^-8 m

• To convert a microinch to kilometers, multiply by 2.54 × 10^^-14:

1 µin x 2.54 × 10^-14 = 2.54 × 10^^-14 km

• To convert a microinch to nanometers, multiply by 25.4:

1 µin x 25.4 = 25.4 nm

• To convert an inch to microinches, multiply by 1,000,000:

1 in x 1,000,000 = 1,000,000 µin

• To convert a foot to microinches, multiply by 12,000,000:

1 ft x 12,000,000 = 12,000,000 µin

• To convert a yard to microinches, multiply by 36,000,000:

1 yd x 36,000,000 = 36,000,000 µin

• To convert a meter to microinches, divide by 2.54 × 10^^-8:

1 m / 2.54 × 10^^-8 = 39,370,078.74 µin

• To convert a kilometer to microinches, divide by 2.54 × 10^^-14:

1 km / 2.54 × 10^-14 = 39,370,078,740,157.48 µin

• To convert a nanometer to microinches, divide by 25.4:

1 nm / 25.4 = 0.03937 µin