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Stick-slip effect with a chalk on a blackboard. Chalk sticks are produced in white and in various colours, especially for use with blackboards. White chalk sticks are made mainly from calcium carbonate derived from mineral chalk or limestone, while coloured chalk sticks are made from calcium sulphate in its dihydrate form, CaSO 4 ·2H 2 O, derived from gypsum.
In mathematics, a real number is a number that can be used to measure a continuous one-dimensional quantity such as a distance, duration or temperature.Here, continuous means that pairs of values can have arbitrarily small differences.
The blackboard bold typeface is widely used for denoting the basic number systems. These systems are often also denoted by the corresponding uppercase bold letter. A clear advantage of blackboard bold is that these symbols cannot be confused with anything else. This allows using them in any area of mathematics, without having to recall their ...
Moodle (/ ˈ m uː d əl / MOO-dəl) is a free and open-source learning management system written in PHP and distributed under the GNU General Public License. [3] [4] Moodle is used for blended learning, distance education, flipped classroom and other online learning projects in schools, universities, workplaces and other sectors.
The English football league pyramid. The English football league system, also known as the football pyramid, is a series of interconnected leagues for men's association football clubs in England, with five teams from Wales, one from Guernsey, one from Jersey and one from the Isle of Man also competing.
This is an abridged version of Teddi Fishman's definition of plagiarism, which proposed five elements characteristic of plagiarism. [59] According to Fishman, plagiarism occurs when someone: Uses words, ideas, or work products; Attributable to another identifiable person or source; Without attributing the work to the source from which it was ...
CNET Download (originally Download.com) is an Internet download directory website launched in 1996 as a part of CNET. Initially it resided on the domain download.com, and then download.com.com for a while, and is now download.cnet.com. The domain download.com attracted at least 113 million visitors annually by 2008 according to a Compete.com ...
Kranz was born August 17, 1933, in Toledo, Ohio, and attended Central Catholic High School.He grew up on a farm that overlooked the Willys-Overland Jeep production plant. . His father, Leo Peter Kranz, was the son of German immigrants, and served as an Army medic during World War I