Furlongs to Micrometers
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1 furlong (fur) = 201168000 micrometer (µm). Furlong (fur) is a unit of Length used in Standard system. Micrometer (µm) is a unit of Length used in Metric 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.

Micrometer: A Unit of Length

Definition of the micrometer

The micrometer, also known as the micron, is a unit of length in the International System of Units (SI) that equals one millionth of a meter. Its symbol is µm.

History of the micrometer

The term micron and the symbol µ were officially accepted for use in isolation to denote the micrometer in 1879, but officially revoked by the International System of Units (SI) in 1967. This became necessary because the older usage was incompatible with the official adoption of the unit prefix micro-, denoted µ, during the creation of the SI in 1960. In the SI, the systematic name micrometre became the official name of the unit, and µm became the official unit symbol.

How to convert micrometer

The micrometer can be converted to other units of length using simple multiplication or division by powers of 10. For example, one micrometer is equal to 0.001 millimeters, 0.000001 meters, or 0.000000001 kilometers in the SI system. One micrometer is also equal to 0.000039 inches, 0.0000033 feet, or 0.00000062 miles in the US standard system.

Where micrometer is used

The micrometer is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria, and for grading wool by the diameter of the fibers. The width of a single human hair ranges from approximately 20 to 200 µm

The micrometer is used in different countries and applications for various purposes. For example:

• In Canada, the micrometer is used to measure air quality by monitoring the concentration of particulate matter (PM) in the atmosphere. PM2.5 refers to particles that are less than 2.5 micrometers in diameter, which can penetrate deep into the lungs and cause health problems.
• In Japan, the micrometer is used to measure the thickness of paper and film products. The standard paper size A4 has a thickness of about 100 µm, while a typical plastic wrap has a thickness of about 10 µm.

Example conversions of micrometer to other units

Here are some sample conversions of micrometer to other units:

• 1 µm = 0.001 mm
• 1 µm = 0.000001 m
• 1 µm = 0.000000001 km
• 1 µm = 0.000039 in
• 1 µm = 0.0000033 ft
• 1 µm = 0.00000062 mi
• 1 µm = 10^^-6 m