Perch unit of measure

A lot of the measurements found in historical documents are slowly disappearing from present knowledge so it is useful to explain them here showing how they relate to current units.

The following chart explains the relationship between chains, links, rods, and acres. It shows a worm rail fence. This is a zigzag fence consisting of interlocking rails supported by crossed poles, also called also snake fence, Virginia fence. If anyone knows the original of this chart, please contact me. A fat quarter of fabric is a measure of area. It is roughly quarter of a square yard, but a bit more.

Perch unit of measure

The rod , perch , or pole sometimes also lug is a surveyor's tool [1] and unit of length of various historical definitions. The rod is useful as a unit of length because integer multiples of it can form one acre of square measure area. The 'perfect acre' [2] is a rectangular area of 43, square feet, bounded by sides feet a furlong long and 66 feet a chain wide yards by 22 yards or, equivalently, 40 rods by 4 rods. An acre is therefore square rods or 10 square chains. The name perch derives from the Ancient Roman unit , the pertica. The measure also has a relationship with the military pike of about the same size. Both measures [1] date from the sixteenth century, [3] when the pike was still utilized in national armies. The tool has largely been supplanted by electronic tools such as surveyor lasers lidar and optical target devices for surveying lands. Surveyors rods and chains are still used in rough terrains with heavy overgrowth where laser or other optical measurements are difficult or impossible. In the United States until 1 January , the rod was often defined as

A unit of masonry workas for walls.

And a Foot ought to contain Twelve Inches, by the right measure of this Yard measured; to wit, The Thirty-sixth Part of this Yard rightly measured maketh one Inch, neither more nor less. Statutes of the Realm , vol. I, page It survives in the United States. The perch is also called, in many contexts, a rod or pole, and even a goad.

And a Foot ought to contain Twelve Inches, by the right measure of this Yard measured; to wit, The Thirty-sixth Part of this Yard rightly measured maketh one Inch, neither more nor less. Statutes of the Realm , vol. I, page It survives in the United States. The perch is also called, in many contexts, a rod or pole, and even a goad. These two words for basically the same thing have persisted to the present day. Grierson has suggested that the Saxon gyrd, or rod, was the combined length of 20 average, actual, human feet. The size of the perch or rod was constrained by its use in defining the acre, which was a work unit of land: as much as a team of oxen could plow in a day. The length of the acre the furrow-long, or furlong is as far as the team can plow without needing a breather.

Perch unit of measure

The rod, otherwise called a pole or perch, is a unit of measurement that surveyors use to measure length. A rod is a useful unit of length because whole number multiples of it can form an acre of square measure. How long is a rod?

Just the where you are lyrics

Walden: or, Life in the woods. A mg aspirin tablet is roughly equivalent to a 5 grain tablet. Survey Foot after ". I think that A are acres, R are roods, rds are square rods, yds are square yards, ft are square feet and in are square inches. Archaeologia Cambrensis. Volume I, page A new classical dictionary of Greek and Roman biography, mythology, and geography partly based upon the Dictionary of Greek and Roman biography and mythology. Retrieved 4 March The square perch 3. Department of Trade and Industry. A football pitch is often used for small areas, and Cambridge has been used for medium areas. The following chart explains the relationship between chains, links, rods, and acres. Retrieved 1 November

The rod , perch , or pole sometimes also lug is a surveyor's tool [1] and unit of length of various historical definitions.

Florin - the name comes from two Florentine engravers who produced an unsuccessful gold florin in valued at 6 shillings. There are 10 chains or 40 rods in a furlong eighth-mile , and so 80 chains or rods in one statute mile yards, In the United States, the rod, along with the chain, furlong, and statute mile as well as the survey inch and survey foot were based on the pre values for United States customary units of linear measurement until 1 January This would be 18 inches by 11 inches for an original fabric width of 42 inches. The perch is also in extensive use in Sri Lanka , being favored even over the rood and acre in real estate listings there. Similar laws existed in Colorado and Idaho There are 40 square perches to a rood for example a rectangular area of 40 rods times one rod , and square perches to an acre for example a rectangular area of 40 rods times 4 rods. Hide - from the Old English hi gi d , is related to the word hiwen , household, and is generally taken as the area of mixed farmland which could support a household and was about acres but it could be between 90 and acres, possibly depending on how fertile the land was. The rod was still in use as a common unit of measurement in the midth century, when Henry David Thoreau used it frequently when describing distances in his work, Walden. Cagliari , Sardinia.