Jump to content
The World News Media

Vantablack


admin
 Share

Recommended Posts

main-qimg-f1039c5a776975eb4d3a33ee0c044e40.jpeg

Vantablack is a substance made of carbon nanotubes[1] and is the blackest substance known, absorbing up to 99.965% of radiation in the visible spectrum. Exclusive rights of Vantablack for artistic use have recently been given to the artist Anish Kapoor.

Etymology

The name comes from the term "Vertically Aligned NanoTube Arrays".[4]

Properties

Vantablack is composed of a forest of vertical tubes which are "grown". When light strikes vantablack, instead of bouncing off, it becomes trapped and is continually deflected among the tubes, eventually becoming absorbed and dissipating into heat.[1]

Vantablack was an improvement over previous similar substances developed at the time. Vantablack absorbs 99.965% of visible light. Also, this new material can be created at 400 °C (752 °F); NASA had developed a similar substance that could be grown at 750 °C (1,380 °F). Vantablack can be grown on materials that cannot withstand higher temperatures.[1]

The outgassing and particle fallout levels of Vantablack are low. The high levels in similar substances in the past had prevented their commercial usefulness. Vantablack also has greater resistance to mechanical vibration, and has greater thermal stability.[4]

Development

Early development was carried out at the National Physical Laboratory (UK),[5] although the term "Vanta" wasn't coined until sometime later.[6] The substance is now being developed by Surrey NanoSystems.[7]

Applications

This substance has many potential applications, including preventing stray light from entering telescopes, and improving the performance of infrared cameras both on Earth and in space,[7][8] Ben Jensen, Chief Technology Officer, Surrey NanoSystems, has explained: "For example, it reduces stray-light, improving the ability of sensitive telescopes to see the faintest stars... Its ultra-low reflectance improves the sensitivity of terrestrial, space and air-borne instrumentation."[7]

Vantablack may also increase the absorption of heat in materials used in concentrated solar power technology, as well as military applications such as thermal camouflage. The emissivity of Vantablack and scalability support a wide range of applications.

The material is being used creatively by artist Anish Kapoor who said, "It's effectively like a paint... Imagine a space that's so dark that as you walk in you lose all sense of where you are, what you are, and especially all sense of time."[9] The color was exclusively licensed to Kapoor's studio for artistic use, outraging some other artists who would be unable to use it.[10][11]However, the manufacturer has explained that Vantablack is also subject to export controls by the UK, and due to its temperature and physical requirements is not practical for use in many types of art.[12]

Commercial production

In 2015, production was scaled up to satisfy the needs of buyers in the aerospace and defense sectors. The first orders were delivered in July 2014.[7]

References[edit]

  1. Jump up to: a b c "Vantablack, the world’s darkest material, is unveiled by UK firm"South China Morning Post - World. 15 July 2014. Retrieved 19 July 2014.
  2. Jump up ^ "Vantablack: U.K. Firm Shows Off 'World's Darkest Material'"NBCNews.com. 15 July 2014. Retrieved 19 July 2014.
  3. Jump up ^ "Artists at war after top sculptor is given exclusive rights to the purest black paint ever which is used on stealth jets"Daily Mail Online. 15 March 2016. Retrieved 15 March 2016.
  4. Jump up to: a b Kuittinen, Tero (14 July 2014). "Scientists have developed a black so deep it makes 3D objects look flat"Yahoo! News Canada. Retrieved 19 July 2014.
  5. Jump up ^ Theocharous, E.; Deshpande, R.; Dillon, A. C.; Lehman, J. "Evaluation of a pyroelectric detector with a carbon multiwalled nanotube black coating in the infrared". Applied Optics 45 (6): 1093. Bibcode:2006ApOpt..45.1093Tdoi:10.1364/AO.45.001093.
  6. Jump up ^ Theocharous, S.P.; Theocharous, E.; Lehman, J.H. "The evaluation of the performance of two pyroelectric detectors with vertically aligned multi-walled carbon nanotube coatings". Infrared Physics & Technology 55 (4): 299–305. Bibcode:2012InPhT..55..299Tdoi:10.1016/j.infrared.2012.03.006.
  7. Jump up to: a b c d Howard, Jacqueline (14 July 2014). "This May Be The World's Darkest Material Yet"Huffington Post. Retrieved 19 July 2014.
  8. Jump up ^ "Vantablack absorbing so much light that it can fool the eye into seeing a smooth surface on a crumpled sheet of aluminum foil".
  9. Jump up ^ "How black can black be?"bbc.co.uk. BBC News. 23 September 2014. Retrieved 7 December 2014.
  10. Jump up ^ Anish Kapoor Angers Artists By Seizing Exclusive Rights To 'Blackest Black' Pigment
  11. Jump up ^ Some Artists Are Seeing Red Over A New 'Black' : The Two-Way : NPR
  12. Jump up ^ FAQs | Surrey NanoSystems
Link to comment
Share on other sites


  • Views 780
  • Replies 0
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Posted Images

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share





  • Recently Browsing

    • No registered users viewing this page.
  • Popular Contributors

  • Topics

  • Posts

    • John-Henry takes a few minutes to explain why Yuval Noah Harari, a professor who works with the World Economic Forum, uses the terms "useless people" and "useless class" in public discourse so frequently.
    • On January 12, 2022, the United States submitted a number of amendments to the IHR that will give away even more of our sovereignty and greatly empower the World Health Organization (WHO) to restrict YOUR health related rights and freedoms. The 75th meeting of the World Health Assembly will be held in Geneva, Switzerland this May 22-28, 2022. The Assembly will vote on the amendments to the IHR. They are very likely to pass and be enacted into International law unless “We the People” stand up against this attack on our sovereignty.
    • I expect most people here don't know, but back in March, the 9th circuit reversed Wit v UBH for, basically, no reason. All the law blogs were croggled: the decision of the court was both very short and just made no sense. What's Wit vs UBH? A really important decision about a law suit against a health insurance company under a federal law called ERISA. ERISA is a consumer protection law that says if a company takes your money to provide you a financial service, they can't take advantage of the fact they have your money hostage to fleece you. It asserts the company has what's called a "fiduciary duty" – they have to behave in a trustworthy manner and do what they said they were going to do when you contract with them for a service. The Wit vs UBH suit argued that they had caught UBH, a health insurance company, making up standards of medical necessity for when they should have to pay for medical care that were in violation of widely agreed upon standards of care in medicine, and in some cases were hard or impossible for any patient to meet. All to get out of having to pay for health care services their members needed, leading to a bunch of people dying – it was a class action suit and some of the members of it were surviving family of the patients. The Wit case was particularly egregious because they found smoking-gun internal emails of doctors in the insurance company, UBH, saying to management, this is against medical standards, and we could probably be sued into oblivion if caught. There was no question what the plaintiffs alleged was actually going on, and everyone doing it knew it was criminal. The ninth circuit ruled, nah, it's cool. Insurance companies don't need to actually, you know, pay for the healthcare they charged you premiums to cover, if they can invent an excuse. Any excuse really. As a consequence, they just basically invalidated the whole of ERISA. Which doesn't just cover insurance – it covers all banking and investment companies too. Or did. And by extension, they may have just knocked over consumer protection laws as a class. Because what is anyone going to do about it? Appeal to the Supreme Court? The Supreme Court we have would love to destroy the principle of consumer protection laws.
  • Members

    • Pudgy

      Pudgy 509

      Member
      Joined:
      Last active:
  • Recent Status Updates

    • Mic Drop

      This Bitcoin and Crypto stuff is really starting to take off like wildfire
      · 0 replies
    • Arauna  »  Thinking

      Hi, it seems we are the only two left talking about it as the rest have lost interest.  PITY, because they will soon see what is coming. I have always had a good imagination for understanding injustice. ..I watched the video about the injustice you put up.... very sad. We understand those things.....the other video is just a parody, of snippets of a very nasty person.... I do not know who she is but she was standing  next to the health minister.....
      I am not well, so I may not make it thru this system..... and I am happy to say maybe it is a  good thing.... I want to praise jehovah until I die ...but the opportunities are getting less.... and who wants to see people suffer?  If I were still around I would be severely stressed by it.  
      My father always said " know all, blow all" when people think they know it all.  And I have seen some pretty opinionated people on here. Mostly people who have had very little suffering and had authority in congregations.   
      I encourage you to stay strong dear sister and please devote more time to worship Jehovah in love. I also want to cut my time on internet ........ I spend time trying to find hidden  news about new developments in UN etc.  Soon all news about what is really  going on will not be available..... just mandates from governments and propaganda from the governments. People will be liquidated and we will not be able to get news about it. 
      Just stay strong. I am glad you spoke out about Australia.... I have a friend there who is too afraid to talk on internet.  They have already built  Covid "camps" in USA and Australia.... the  ĺorcing all "faith in god" out of everyone..  only worship of the state will be allowed. .... to compromise as many as he can.
      Strengthen yourself. No one can do it for you. 
      · 0 replies
    • Toni  »  T.B. (Twyla)

      Thank you so much for the spiritual food!!!
      Agape
      Toni
      · 0 replies
    • Arauna  »  TrueTomHarley

      Hi Tom, where are u?  I miss ya! 
      · 2 replies
    • Eric Ouellet

      ג Guimel
      Ô. Jéhovah trace le chemin de ma vie;
      car en vous je met ma confiance entière.
      Vos paroles se révèlent à mon oreille.
      Je voudrais être prêt à vous servir toute au long de ma vie.
      La source de mes secrets, vous est révelé devant vous;
      votre justice est comme la lumière du soleil en plein midi.
      Seul mon Dieu peut discerner les actions de mon Âme;
      les secrets de mes pensées et de celles de mes actions.
      Ô mon Dieu Jéhovah , je voudrais recevoir l'honneur 
      de la protection du Dieu de mon Salut. 
      J'aimerais recevoir l'eau de ta source pour m'abreuver 
      comme un chameau avant le grand pèlerinage de ma foi.
      Devant vos yeux se dessine la quête de ma victoire;
      Car Jéhovah est grand et infiniment digne de louanges.
      La grandeur de votre sagesse et de votre intelligence est inscrutable.
      Je voudrais rendre grâce à Jéhovah et m'unir à tous les justes et humbles de la terre.
      Tous ensemble exaltons le Nom glorieux de notre Dieu d'amour.
      Les œuvres de notre Dieu Jéhovah sont grandioses, à tout jamais.
      Hallélouyah
      Ô. Jéhovah voulez-vous protèger votre serviteur;
      afin que je vive et que j’obéisse à vos paroles?
      Ouvre mes yeux pour que je vois clairement
      les choses merveilleuses de votre loi qui sont inscrites
      à l'intérieur des paroles de votre livre merveilleux.
       
      Je ne suis qu’un étranger dans le pays de la terre.
      Ô mon Dieu ne me cache d'aucune manière la beauté 
      de vos préceptes qui gardent vos serviteurs en vie.
      Bénis soit celui qui me révèle le chemin que je dois parcourir;
      le désir que manifeste mon âme qui est attaché à ma poussière.
       
      Je voudrais connaître le secret de préserver mon âme;
      ce cadeau inestimable du seul vrai Dieu; ce lien d'appartenance que je dois préserver au gré de ma vie comme à la prunelle de mes yeux.
      Je voudrais brûler constamment de désir pour tes jugements;
      car les jugements de mon Dieu révèle sa grandeur.
       
      Ô. Jéhovah réprimandes les présomptueux,
      les hypocrites qui dévient de la beauté de tes commandements.
      Éloigne de moi la dérision et le mépris de ce monde,
      car je veux obéir à tes rappels et je veux être soucieux de garder 
      mon âme de toutes violences et de toutes souillures de ce monde.
      Même si les princes de ce monde se réunissent 
      pour parler contre tes serviteurs;
      Tes serviteurs méditent sur vos prescriptions;
      unie à votre amour comme un seul, nous sommes attachés à vos rappels ;
      Tous ceux qui sont avec toi au mon Dieu sont mes conseillers.
      L'humilité et ma douceur garde mes yeux éveillés à lire votre parole, jour et nuit; car votre parole est la source de la lumière qui fera briller mon âme au jour de votre salut.
      Ô. Jéhovah fait briller ta justice et ton droit comme l’aurore du soleil en plein midi.
      Les descendants de ton salut seront puissant sur la terre.
      Gloire et honneur soit rendu à notre Dieu Jéhovah. 
      Bénis soit le Dieu unique de notre Salut
      Hallélouyah.
       

      · 1 reply
  • Forum Statistics

    • Total Topics
      64.3k
    • Total Posts
      141.2k
  • Member Statistics

    • Total Members
      17,264
    • Most Online
      1,592

    Newest Member
    Jonathan Knowles
    Joined
×
×
  • Create New...

Important Information

Terms of Service Confirmation Terms of Use Privacy Policy Guidelines We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.