ভ্যান্টাব্ল্যাক World's Blackest Material Vantablack explained in bangla with animation Ep 64 скачать в хорошем качестве

ভ্যান্টাব্ল্যাক World's Blackest Material Vantablack explained in bangla with animation Ep 64

✅ Facebook ID:   / jommanbhuiyan   ✅ Facebook page:   / bigganpic   ✅ Facebook group :   / 1095857147635783   ✅ Business inquiries : [email protected] Video about " Graphene " :    • পৃথিবীর সবচেয়ে শক্তিশালী এবং পাতলাবস্তু G...   Vantablack is a brand name for a class of super-black coatings with total hemispherical reflectances (THR) below 1.5% in the visible spectrum. The original Vantablack coating was grown from a chemical vapour deposition process (CVD) developed by Surrey NanoSystems in the United Kingdom and is one of the darkest coatings known, absorbing up to 99.965% of visible light (at 663 nm if the light is perpendicular to the material). The coatings are unique in that they are not only super-black but that they retain uniform light absorption from almost all viewing angles. Original CVD Vantablack is no longer manufactured for commercial applications as it has been superseded by Vantablack spray coatings that offer similar optical performance in key parts of the electromagnetic spectrum. The name is a combination of the acronym VANTA (vertically aligned carbon nanotube arrays) and the color black. As one of the darkest materials, Vantablack has many potential applications, such as preventing stray light from entering telescopes, and improving the performance of infrared cameras both on Earth and in space. In addition to directly growing aligned carbon nanotubes, Vantablack is made into two sprayable paints with randomly oriented nanotubes, Vantablack S-VIS and Vantablack S-IR with better infrared absorption than the former. These paints require a special license, a temperature of 100–280 °C, and vacuum post-processing. Surrey NanoSystems also markets a line of non-nanotube sprayable paints known as Vantablack VBx that are even easier to apply. #BigganPiC #Vantablack #Carbon_Nanotubes #Darkest_Material #Education #Science #Physics In this video,Video clip use under creative commons license and fair use policy. Video edit by wondershare filmora. Audio edit by audacity. Read More: https://en.wikipedia.org/wiki/Vantablack ˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍ Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. ˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍˍ