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The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.
The line of sucker rods is represented in this diagram by the solid black line in the center of the well. A sucker rod is a steel rod, typically between 7 and 9 metres (25 and 30 ft) in length, and threaded at both ends, used in the oil industry to join together the surface and downhole components of a reciprocating piston pump installed in an oil well.
One typical design is a box containing a large battery (or battery pack) at the handle end and wires embedded in a fibreglass rod, ending with two electrodes in a rubber tip. As the precursor of stun guns, cattle prods have a wide range of voltage with enough current to operate in the same manner as a stun gun does against humans.
A collection of fishing rods A fly fishing rod Line guides on modern fishing rods Fishing with a fishing rod. A fishing rod or fishing pole is a long, thin rod used by anglers to catch fish by manipulating a line ending in a hook (formerly known as an angle, hence the term "angling").
A connecting rod, also called a 'con rod', [1] [2] [3] is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. [4] The connecting rod is required to transmit the compressive and tensile forces from ...
Rodents naturally try to stay on the rotating cylinder, or rotarod, and avoid falling to the ground. The length of time that a given animal stays on this rotating rod is a measure of their balance, coordination, physical condition, and motor-planning. The speed of the rotarod is mechanically driven, and may either be held constant, or accelerated.
Eastwood Brush Farm House built by Blaxland. Gregory Blaxland was born 17 June 1778 at Fordwich, Kent, England, the fourth son of John Blaxland, mayor from 1767 to 1774, whose family had owned estates nearby for generations, and Mary, daughter of Captain Parker, R.N. Gregory attended The King's School, Canterbury. In July 1799 in the church of ...
Bjorn was eventually acquired by German explorer Wilhelm Filchner and, renamed Deutschland, was used in his 1911–1913 voyage to the Weddell Sea. [16] Shackleton had to settle for the elderly, much smaller Nimrod , a forty-year-old wooden sealer of 334 gross register tons , [ c ] which he was able to acquire for £5,000 (updated value £668,000).