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A coil of catgut cello string. Catgut (also known as gut) is a type of cord [1] that is prepared from the natural fiber found in the walls of animal intestines. [2] Catgut makers usually use sheep or goat intestines, but occasionally use the intestines of cattle, [3] hogs, horses, mules, or donkeys. [4] Despite the name, catgut is not made from ...
Misinterpretation of the word kit as referring to a young cat may have led to the use of the term catgut. Perhaps another possible explanation of the name is the combination of the words cattle and gut. B Braun Medical AG, a German manufacturer, first industrialized catgut suture; Catgut is a brand registered of the company.
Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards , matching games , practice electronic assessments , and live quizzes.
Metal tankards often come with a glass bottom. The legend is that the glass-bottomed tankard was developed as a way of refusing the King's shilling, i.e., conscription into the British Army or Navy. The drinker could see the coin in the bottom of the glass and refuse the drink, thereby avoiding conscription.
Ampoule-filling machines can be categorized in three categories called automatic machine, semi automatic machine, and manual (hand-operated) machines. Blank ampoules can be purchased from scientific glass supply houses and sealed with a small gas torch. A Schlenk line may be used for sealing under inert atmospheres. This procedure usually ...
Others are English language constructs (although the base words may have non-English etymology). In some disciplines, where shapes of subjects in question are a very important consideration, the shape naming may be quite elaborate, see, e.g., the taxonomy of shapes of plant leaves in botany .
The energetic mixing of ceramic raw materials, especially clays, with water to produce slip or slurry. Undertaken in large tanks called blungers. [2] Body The structural portion of a ceramic article, or the material or mixture from which it is made. Bone ash Calcined animal bone used in the production of bone china. Synthetic alternatives are ...
The exception to this definition is a slightly conical-sided beaker called a Philips beaker. The beaker shape in general drinkware is similar. Beakers are commonly made of glass (today usually borosilicate glass [ 3 ] ), but can also be in metal (such as stainless steel or aluminum ) or certain plastics (notably polythene , polypropylene , PTFE ).