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Bioconcentration. In aquatic toxicology, bioconcentration is the accumulation of a water-borne chemical substance in an organism exposed to the water. [1][2] There are several ways in which to measure and assess bioaccumulation and bioconcentration. These include: octanol-water partition coefficients (K OW), bioconcentration factors (BCF ...
Tris (pentafluorophenyl)borane, sometimes referred to as "BCF", is the chemical compound (C6F5)3B. It is a white, volatile solid. The molecule consists of three pentafluorophenyl groups attached in a "paddle-wheel" manner to a central boron atom; the BC3 core is planar. It has been described as the “ideal Lewis acid ” because of its high ...
The shaft of a golf club is the long, tapered tube which connects the golfer's hands to the club head. While hundreds of different designs exist, the primary purpose of the golf shaft remains the same: to provide the player with a way to generate centrifugal force in order to effectively strike the ball. When properly gripped the player can hit ...
Loft and lie of a golf club. The shaft is a tapered tube made of metal (usually steel) or carbon fiber composite (referred to as graphite). The shaft is roughly 0.5 inches (13 mm) in diameter near the grip and from 34 to 48 inches (86 to 122 cm) in length. Shafts weigh from 45 to 150 grams (1.6 to 5.3 oz), depending on the material and length. [2]
Iron (golf) An iron is a type of club used in the sport of golf to propel the ball towards the hole. Irons typically have shorter shafts and smaller clubheads than woods, the head is made of solid iron or steel, and the head's primary feature is a large, flat, angled face, usually scored with grooves. Irons are used in a wide variety of ...
The Presidents Cup begins on Thursday with Round 1 matches in a four-ball format. Each match will be worth one point. In the event of a tie, both sides will receive half a point. The first team to ...
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The longest recorded straight drive hole-in-one is believed to be 517 yards or 473 metres, on the par-5 No. 9 hole at Green Valley Ranch Golf Club in Denver in 2002, aided by the thin air due to the high altitude. [6] [7] None of the five par-5 holes-in-one were achieved during a professional tournament. [6]