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Moissanite (/ ˈmɔɪsəˌnaɪt /) [ 5 ] is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare mineral, discovered by the French chemist Henri Moissan in 1893. Silicon carbide or moissanite is useful for commercial and industrial applications due to its hardness, optical ...
This is a list of programs that have formerly aired on Discovery Kids (1996–2010), Hub Network (2010–14), and Discovery Family (since 2014). An asterisk (*) indicates that the program had new episodes aired on Discovery Family.
On Earth, the natural form of silicon carbide is a rare mineral, moissanite. [19] In the Solar System the rocky planets Mercury, Venus, Earth and Mars are 70% to 90% silicates by mass. By contrast, stars with a high ratio of carbon to oxygen may be orbited by planets that are mostly carbides, with the most common material being silicon carbide ...
Weston Woods Studios (or simply Weston Woods) is a production company that makes audio and short films based on well-known books for children. [1] It was founded in 1953 by Morton Schindel in Weston, Connecticut, and named after the wooded area near his home.
2000. 31 January – Carlton Kids stops broadcasting. [5]1 February – Discovery Kids launches on the OnDigital platform as a direct replacement for Carlton Kids. 27 May – Boomerang launches to broadcast classic cartoons from the Hanna-Barbera, MGM and Warner Bros archive programme library, as well as freeing up its sister network of many classics in the schedule.
A collection of gemstone pebbles made by tumbling the rough stones, except the ruby and tourmaline, with abrasive grit inside a rotating barrel. The largest pebble here is 40 mm (1.6 in) long. The traditional classification in the West, which goes back to the ancient Greeks, begins with a distinction between precious and semi-precious; similar ...
Maryanne Wolf is a scholar, teacher, and advocate for children and literacy around the world. She is the UCLA Professor-in-Residence of Education, Director of the UCLA Center for Dyslexia, Diverse Learners, and Social Justice, [1] and the Chapman University Presidential Fellow (2018-2022). [2]
Silicon carbide (SiC), also known as carborundum (/ ˌkɑːrbəˈrʌndəm /), is a hard chemical compound containing silicon and carbon. A wide bandgap semiconductor, it occurs in nature as the extremely rare mineral moissanite, but has been mass-produced as a powder and crystal since 1893 for use as an abrasive.