Carbon nanotubes are cylindrical shaped tubes made up of long carbon chains of the thickness of 1 billion of a meter. Their length can expand to as much as several centimetes. The physical properties of carbon nanotube such as about 60 times stronger than steel makes them ideal material in the various field. applications still under research but have wide applications in electrical components ,robotics, mechanical engg etc.
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a nanobot is made of carbon.The carbon makes carbon nanotubes.The carbon nanotubes are so small that 1,000,000 carbon nanotubes can fit in your artery.In any proportion they can make a nanobot
Five materials that do not reflect light are known as non-reflective materials. These include Vantablack, a substance made of carbon nanotubes that absorbs up to 99.965% of visible light, making it one of the darkest materials known. Other examples include black velvet, carbon nanotube forests, black acrylic paint, and black holes, which absorb light due to their intense gravitational pull. These materials are used in various applications such as scientific research, stealth technology, and artistic expression.
Everything on earth reflects some light.Even the blackest substance known to man, carbon nanotubes will reflect some light.Galena, Lead Sulfide is a metallic gray naturally occurring mineral.Here are some photos from Wikipedia. If the mineral did not reflect light, you would just see a black spot in the photos.
For now it is hard to use anything for it because it can take months to grow a reasonable amount, but if people found a way to quickly make this material then it will certainly be in shields and armors because a paper-thin sheet of this thing can throw back a bullet.
Carbon.