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  2. Benson & Hedges - Wikipedia

    en.wikipedia.org/wiki/Benson_&_Hedges

    An old pack of English Benson & Hedges cigarettes, with a UK text warning at the bottom of the pack. Benson & Hedges was founded in London in 1873 by Richard Benson and William Hedges as Benson and Hedges Ltd. Alfred Paget Hedges succeeded his father in the business in 1885, the same year which Richard Benson left the business.

  3. Synthetic diamond - Wikipedia

    en.wikipedia.org/wiki/Synthetic_diamond

    Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. A synthetic diamond or laboratory-grown diamond (LGD), also called a lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is a diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is ...

  4. Kimberlite - Wikipedia

    en.wikipedia.org/wiki/Kimberlite

    Kimberlite pipes are the most important source of mined diamonds today. The consensus on kimberlites is that they are formed deep within Earth's mantle . Formation occurs at depths between 150 and 450 kilometres (93 and 280 mi), potentially from anomalously enriched exotic mantle compositions, and they are erupted rapidly and violently, often ...

  5. Canadian diamonds - Wikipedia

    en.wikipedia.org/wiki/Canadian_diamonds

    Canadian diamonds are diamonds which have been mined in any one of the provinces and territories of Canada. Diamond-rich areas were not commercially extracted in Canada until the early 1990s. [ 1 ] For the first 60 years of the 20th century, diamonds originated from kimberlite pipes and alluvial deposits in places such as Africa and some from ...

  6. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

    This page was last edited on 16 November 2024, at 12:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  7. Rockwell hardness test - Wikipedia

    en.wikipedia.org/wiki/Rockwell_hardness_test

    spheroconical diamond † Superficial: for case-hardened materials: 100: 1000 * Except for the superficial scales where it is 3 kgf, the minor load is 10 kgf. † Also called a Brale indenter, is made with a conical diamond of 120° ± 0.35° included angle and a tip radius of 0.200 ± 0.010 mm.

  8. List of downloadable songs for the Rock Band series - Wikipedia

    en.wikipedia.org/wiki/List_of_downloadable_songs...

    Individual songs are usually priced at either US$1.99/€1.49/£0.99, or US$1.00/€0.75/£0.59, with a few exceptions priced at £1.19 or £1.49/€1.99; [16] all are available for download through PlayStation Network, Xbox Live and the Wii's online service unless otherwise noted on the list below.

  9. Wikipedia:Vital articles/List of all articles - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Vital_articles/...

    (2,875) T Tauri star · T cell · T-Series (company) · T-shirt · T-square · T-top · T. Allston Brown · T. Berry Brazelton · T. Boone Pickens · T. E. Hulme · T. E. Lawrence · T. H. Green · T. H. White · T. Nelson Downs · T. S. Eliot · T.A.T.u. · TGV · TIFF · TLC (group) · TNT · TNT equivalent · TRAPPIST-1 · TRS-80 · TSMC · TU Dresden · TV Guide · TVXQ · TW Hydrae · Ta ...

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