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 |  One hundred facts that are interesting but ultimately useless. |
The Blackest Black - physics / technology - The title of "blackest substance made by humans" is disputed. The main contender is formed of manufactured nanoparticles called "dark chamaleon dimers". Discovered in 2015, the substance absorbs nearly 99% of all visible light, as well as a partial range of infrared light. The previous title-holder is "vantablack", which is made from arrays of carbon nanotubes. While vantablack can potentially trap more light than chamaleon dimers (up to 99.965%), its effectiveness changes depending on the angle at which it is viewed. Both materials could be potentially used to minimize light interference in telescopes and infrared cameras, increase efficiency of concentrated solar power, and mask heat signatures as thermal camouflage. #020 |
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