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A concrete densifier is a chemical applied to a concrete surface in order to fill pores, increasing surface density [clarification needed].Chemical densifiers are used on polished and non-polished concrete to reduce dusting and wear; on polished concrete surfaces densifiers help concrete take a better polish and make the surface less permeable to liquids so the slab does not require sealing.
YouTube Creator Awards. YouTube Creator Awards, commonly known as YouTube Play Buttons or YouTube Plaques, are a series of awards from the American video platform YouTube that aim to recognize its most popular channels. They are based on a channel's subscriber count but are offered at the sole discretion of YouTube.
Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).
The reported Vickers and Knoop hardnesses were intermediate between diamond and c-BN, making the new phase the second hardest known material. [39] Ternary B–C–N phases can also be made using shock-compression synthesis. It was further suggested to extend the B–C–N system to quaternary compounds with silicon included. [9] [40]
Synthetic diamond. Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. Laboratory-grown ( LGD ), also called lab-grown diamond, [ 1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is diamond that is produced in a controlled technological process (in contrast to ...
European regulators hit Microsoft with a new antitrust charge one day after the same regulatory body charged Apple with violating EU competition law.
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The first known video to have held the title of most viewed YouTube video was Under the Bridge! uploaded by jawed on June 11, 2005. By June 30, it had been viewed more than 24,000 times, being the only video on the site to have accumulated more than 10,000 views at the time. [ 69 ]