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In modern archery, a compound bow is a bow that uses a levering system, usually of cables and pulleys, to bend the limbs. [1] The compound bow was first developed in 1966 by Holless Wilbur Allen in North Kansas City, Missouri, and a US patent was granted in 1969. Compound bows are widely used in target practice and hunting.
The binary cam is a design for the pulley system of a compound bow. Craig Yehle, director of research and development at Bowtech Archery, received a patent [1] for the design on December 11, 2007. Bowtech started equipping its bows with the new cam design in the 2005 model year. [2] [3]
Allen was born July 12, 1909, in Stilwell, Kansas.In the 1960s, he sawed the ends off a conventional recurve bow and then added pulleys to each end. [1] Allen experimented with a number of designs to apply for a patent on June 23, 1966, [2] and U.S. patent 3,486,495 was granted to him in December 1969.
Bow drill (strap-drill) are the first machine drills, as they convert a back and forth motion to a rotary motion, and they can be traced back to around 10,000 years ago. It was discovered that tying a cord around a stick, and then attaching the ends of the string to the ends of a stick (a bow), allowed a user to drill quicker and more efficiently.
The Variety Kit contains kits for five individual Toy-Con: Two remote-controlled cars, where the vibrations from the Joy-Con serve to provide momentum and steering to the car. The game software allows the player to control the car like a normal remote-controlled vehicle using the console itself as the controller.
from Pers. koh کوه "mountain" نور Noor (light)." famous diamond that became part of the British crown jewels after the annexation of Punjab by Great Britain in 1849, from Persian کوہ نور Kh-i-nr, literally, mountain of light [188] [189] Kotwal Hindi कोतवाल kotwal, from Persian. a chief police officer or town magistrate ...