A circular mil (often abbreviated as cmil or kcmil) is a unit of area used primarily in the United States for measuring the cross-sectional area of a round wire or cable. It is a convenient unit for specifying the size of electrical conductors.
One circular mil is equal to the area of a circle with a diameter of one mil (1/1000th of an inch) or approximately 0.000000506707 square inches (in²). In metric units, one circular mil is approximately equal to 0.000001273 square millimeters (mm²).
Circular mils are commonly used in the American Wire Gauge (AWG) system to specify wire sizes. The AWG system assigns a unique number to each wire size, and this number is related to the wire's cross-sectional area in circular mils. For example, a larger AWG number corresponds to a smaller wire size with fewer circular mils, while a smaller AWG number corresponds to a larger wire size with more circular mils. This system allows for easy reference and selection of wire sizes for various electrical applications.
An "arpent" is a historical unit of length used primarily in France, Canada, and some parts of the United States. The exact length of an arpent can vary depending on the region and historical context, but it is typically close to 180 French feet.
In the traditional French system of measurements, which was used in many parts of North America when they were colonized by the French, one arpent is equal to approximately 5.99 meters or about 19.62 feet. However, there were variations in the length of the arpent in different regions, so the specific value could differ.
Arpents were often used for land measurement and property boundaries in historical French colonial territories. Today, the use of the arpent has largely been replaced by more modern and standardized systems of measurement, such as the metric system in most parts of the world, including France and Canada, and the U.S. customary system in the United States.
An "arpent" is an old unit of length and area that was historically used in France and some former French colonies, including parts of North America, such as Louisiana. The exact value of an arpent varied depending on the region and time period but was typically around 180 to 190 feet (approximately 54.86 to 57.91 meters) in length.
Arpents were used for land measurement and land distribution in colonial and early American history, particularly in French colonial territories. In some cases, the term "arpent" was also used to refer to a unit of land area, and it was equivalent to the area of a strip of land that was one arpent wide and one arpent long, resulting in an area of approximately 0.85 to 0.9 acres, depending on the specific measurement used.
Today, the use of the arpent is largely historical, and modern land measurements in countries that previously used the arpent are typically expressed in more standardized units such as acres or square meters.