Hajr, also known as Hajr al-Yamamah or Khadra Hajr, was an ancient city founded by the Hanifites that roughly emerged in 5th century pre-Islamic Arabia and existed until 16th century in modern-day Riyadh in the Najd region of present-day Saudi Arabia.
"}{"fact":"Cats do not think that they are little people. They think that we are big cats. This influences their behavior in many ways.","length":124}
{"slip": { "id": 131, "advice": "YOLO"}}
{"slip": { "id": 43, "advice": "Try to pay at least one person a compliment every day."}}
{"slip": { "id": 161, "advice": "You have as many hours in a day as the people you admire most."}}
{"fact":"Mountain lions are strong jumpers, thanks to muscular hind legs that are longer than their front legs.","length":102}
{"type":"standard","title":"Synthesis of carbon nanotubes","displaytitle":"Synthesis of carbon nanotubes","namespace":{"id":0,"text":""},"wikibase_item":"Q28324867","titles":{"canonical":"Synthesis_of_carbon_nanotubes","normalized":"Synthesis of carbon nanotubes","display":"Synthesis of carbon nanotubes"},"pageid":51069037,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Mutr-nanotubes1.jpg/320px-Mutr-nanotubes1.jpg","width":320,"height":427},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/d/d0/Mutr-nanotubes1.jpg","width":2448,"height":3264},"lang":"en","dir":"ltr","revision":"1226227779","tid":"6a2b465d-1d9f-11ef-97c9-593fa182a4b2","timestamp":"2024-05-29T09:39:59Z","description":"Class of manufacturing","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Synthesis_of_carbon_nanotubes","revisions":"https://en.wikipedia.org/wiki/Synthesis_of_carbon_nanotubes?action=history","edit":"https://en.wikipedia.org/wiki/Synthesis_of_carbon_nanotubes?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Synthesis_of_carbon_nanotubes"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Synthesis_of_carbon_nanotubes","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Synthesis_of_carbon_nanotubes","edit":"https://en.m.wikipedia.org/wiki/Synthesis_of_carbon_nanotubes?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Synthesis_of_carbon_nanotubes"}},"extract":"Techniques have been developed to produce carbon nanotubes (CNTs) in sizable quantities, including arc discharge, laser ablation, high-pressure carbon monoxide disproportionation, and chemical vapor deposition (CVD). Most of these processes take place in a vacuum or with process gases. CVD growth of CNTs can occur in a vacuum or at atmospheric pressure. Large quantities of nanotubes can be synthesized by these methods; advances in catalysis and continuous growth are making CNTs more commercially viable.","extract_html":"
Techniques have been developed to produce carbon nanotubes (CNTs) in sizable quantities, including arc discharge, laser ablation, high-pressure carbon monoxide disproportionation, and chemical vapor deposition (CVD). Most of these processes take place in a vacuum or with process gases. CVD growth of CNTs can occur in a vacuum or at atmospheric pressure. Large quantities of nanotubes can be synthesized by these methods; advances in catalysis and continuous growth are making CNTs more commercially viable.
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{"type":"standard","title":"Jan Kromkamp","displaytitle":"Jan Kromkamp","namespace":{"id":0,"text":""},"wikibase_item":"Q313054","titles":{"canonical":"Jan_Kromkamp","normalized":"Jan Kromkamp","display":"Jan Kromkamp"},"pageid":2682729,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Jan_Kromkamp_%28cropped%29.jpg/330px-Jan_Kromkamp_%28cropped%29.jpg","width":320,"height":387},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/d/d1/Jan_Kromkamp_%28cropped%29.jpg","width":434,"height":525},"lang":"en","dir":"ltr","revision":"1281846406","tid":"7a177d41-0763-11f0-9486-ed826b6233d5","timestamp":"2025-03-22T21:20:28Z","description":"Dutch football manager (born 1980)","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Jan_Kromkamp","revisions":"https://en.wikipedia.org/wiki/Jan_Kromkamp?action=history","edit":"https://en.wikipedia.org/wiki/Jan_Kromkamp?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Jan_Kromkamp"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Jan_Kromkamp","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Jan_Kromkamp","edit":"https://en.m.wikipedia.org/wiki/Jan_Kromkamp?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Jan_Kromkamp"}},"extract":"Jan Kromkamp is a Dutch former p