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Il y a 17 heures · Lucasfilm continues with their release of acclaimed historical documentaries, produced by George Lucas for The Adventures of Young Indiana Jones on DVD, with Powder Keg: Europe 1900 to 1914. A complex system of alliances and diplomatic tensions helped end peace in Europe.
Il y a 17 heures · Metallizing. Metallizing is the general name for the technique of coating metal on the surface of objects. Metallic coatings may be decorative, protective or functional. Techniques for metallization started as early as mirror making. In 1835, Justus von Liebig discovered the process of coating a glass surface with metallic silver, making the ...
Il y a 17 heures · Bismuth(III) oxide powder. Chemically, bismuth resembles arsenic and antimony, but is much less toxic. In almost all known compounds, bismuth has oxidation state +3; a few have states +5 or −3. The trioxide and trisulfide can both be made from the elements, although the trioxide is extremely corrosive at high temperatures.
Il y a 17 heures · Quartz is a hard, crystalline mineral composed of silica ( silicon dioxide ). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2. Quartz is, therefore, classified structurally as a framework silicate mineral and ...
Il y a 17 heures · Sanaa McCoy Lathan [1] ( / səˈnɑːˈleɪθən /; [2] born September 19, 1971) [1] is an American actress. She is the daughter of actress Eleanor McCoy and film director Stan Lathan. Her career began after she appeared in the shows In the House, Family Matters, NYPD Blue, and Moesha. Lathan later garnered further prominence after starring in ...
Il y a 17 heures · Welcome to the Money blog, your place for personal finance and consumer news and tips. Share your thoughts on any of the stories we cover in the box below.
Il y a 17 heures · Veganism The symbol widely used to denote a vegan-friendly product Pronunciation Veganism / ˈ v iː ɡ ən ɪ z əm / VEE -gə-niz-əm Vegan VEE -gən [a] Description Avoiding the use of animal products, particularly in diet Earliest proponents Al-Ma'arri (c. 973 – c. 1057) [b] Roger Crab (1621 – 1680) Johann Conrad Beissel (1691 – 1768) James Pierrepont Greaves (1777 – 1842) Lewis ...
