Iakov (Yan) Soibelman born 15 April 1956 is a Russian American mathematician, professor at Kansas State University, member of the Kyiv Mathematical Society (Ukraine), founder of Manhattan Mathematical Olympiad.
"}{"type":"standard","title":"Yamaha XSR700","displaytitle":"Yamaha XSR700","namespace":{"id":0,"text":""},"wikibase_item":"Q21051073","titles":{"canonical":"Yamaha_XSR700","normalized":"Yamaha XSR700","display":"Yamaha XSR700"},"pageid":60360257,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Yamaha_Xsr_%28199434917%29.jpeg/330px-Yamaha_Xsr_%28199434917%29.jpeg","width":320,"height":196},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/f/f2/Yamaha_Xsr_%28199434917%29.jpeg","width":2048,"height":1257},"lang":"en","dir":"ltr","revision":"1126754792","tid":"e6a24043-78f7-11ed-bc3a-674f12a3e6a7","timestamp":"2022-12-11T02:02:44Z","description":"Type of motorcycle","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Yamaha_XSR700","revisions":"https://en.wikipedia.org/wiki/Yamaha_XSR700?action=history","edit":"https://en.wikipedia.org/wiki/Yamaha_XSR700?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Yamaha_XSR700"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Yamaha_XSR700","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Yamaha_XSR700","edit":"https://en.m.wikipedia.org/wiki/Yamaha_XSR700?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Yamaha_XSR700"}},"extract":"The Yamaha XSR700 is a motorcycle manufactured by Yamaha. The production takes place in the Yamaha-MBK plant in Rouvroy, France. The launch of the naked bike took place in March 2016.","extract_html":"
The Yamaha XSR700 is a motorcycle manufactured by Yamaha. The production takes place in the Yamaha-MBK plant in Rouvroy, France. The launch of the naked bike took place in March 2016.
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{"type":"standard","title":"Amalgam (chemistry)","displaytitle":"Amalgam (chemistry)","namespace":{"id":0,"text":""},"wikibase_item":"Q182574","titles":{"canonical":"Amalgam_(chemistry)","normalized":"Amalgam (chemistry)","display":"Amalgam (chemistry)"},"pageid":19074264,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Amalgam-200675.jpg/330px-Amalgam-200675.jpg","width":320,"height":407},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/e/e9/Amalgam-200675.jpg","width":589,"height":750},"lang":"en","dir":"ltr","revision":"1277703459","tid":"4f0d6b14-f407-11ef-af16-f473b3cd4f65","timestamp":"2025-02-26T06:02:50Z","description":"Alloy of mercury with another metal","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Amalgam_(chemistry)","revisions":"https://en.wikipedia.org/wiki/Amalgam_(chemistry)?action=history","edit":"https://en.wikipedia.org/wiki/Amalgam_(chemistry)?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Amalgam_(chemistry)"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Amalgam_(chemistry)","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Amalgam_(chemistry)","edit":"https://en.m.wikipedia.org/wiki/Amalgam_(chemistry)?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Amalgam_(chemistry)"}},"extract":"An amalgam is an alloy of mercury with another metal. It may be a liquid, a soft paste or a solid, depending upon the proportion of mercury. These alloys are formed through metallic bonding, with the electrostatic attractive force of the conduction electrons working to bind all the positively charged metal ions together into a crystal lattice structure. Almost all metals can form amalgams with mercury, the notable exceptions being iron, platinum, tungsten, and tantalum. Gold-mercury amalgam is used in the extraction of gold from ore, and dental amalgams are made with metals such as silver, copper, indium, tin and zinc.","extract_html":"
An amalgam is an alloy of mercury with another metal. It may be a liquid, a soft paste or a solid, depending upon the proportion of mercury. These alloys are formed through metallic bonding, with the electrostatic attractive force of the conduction electrons working to