Hypothesis

try { if ( localStorage.getItem(skinItemId ) ) { var _g1; _g1 = document.getElementById('g1-logo-inverted-img'); _g1.classList.remove('lazyload'); _g1.setAttribute('src', _g1.getAttribute('data-src') ); _g1 = document.getElementById('g1-logo-inverted-source'); _g1.setAttribute('srcset', _g1.getAttribute('data-srcset')); } } catch(e) {} Sciences Technologie Planète Espace Histoire Santé Société Insolite Mystère Search Search for: Search Définitions Biographies Archimède Charles Darwin Claude Ptolémée Dimitri Mendeleïev Elon Musk Galilée Isaac Newton Lénonard de Vinci Louis Pasteur Marie Curie Nicolas Copernic Nikola Tesla Stephen Hawking Steve Jobs Thomas Edison Thomas Pesquet Objets scientifiques Menu try { if ( localStorage.getItem(skinItemId ) ) { var _g1; _g1 = document.getElementById('g1-logo-mobile-inverted-img'); _g1.classList.remove('lazyload'); _g1.setAttribute('src', _g1.getAttribute('data-src') ); _g1 = document.getElementById('g1-logo-mobile-inverted-source'); _g1.setAttribute('srcset', _g1.getAttribute('data-srcset')); } } catch(e) {} Login Latest stories En réalité, le mégalodon était plus gros qu’on ne le pensait Climat : la survenue d’un “effet domino” est-elle déjà engagée ? Pollution à l’ozone : voici l’impact qu’a eu la pandémie en 2020 EnVision : l’ESA se prépare aussi à rejoindre Vénus Sur Mars, Perseverance entame ses opérations scientifiques Relativity Space dévoile une fusée entièrement réutilisable et imprimée en 3D Cette île flottante fabriquée à partir de déchets devrait accueillir des touristes en 2025 ! Cette éruption aurait détruit la couche d’ozone et changé le cours de l’évolution humaine Jeff Bezos s’envolera pour l’espace le mois prochain Retour Suite googletag.cmd.push(function() { googletag.display('div-gpt-ad-1587732802961-0'); }); googletag.cmd.push(function() { googletag.display('div-gpt-ad-1587733203789-0'); }); #g1-background-media-60c4fd38bbb3f { background-image: url( https://sciencepost.fr/wp-content/uploads/2016/03/Vantablack_01.jpg ); } in Insolite Vantablack : le noir le plus noir du monde est désormais la propriété d’un seul homme Crédits Surrey NanoSystems par Yohan Demeure, rédacteur scientifique 19 mars 2016, 0 h 02 min PartagerTweeter Un artiste britannique est désormais le seul propriétaire du pigment de couleur le plus noir existant sur Terre. Ce dernier a été baptisé Vantablack par la société qui le produit, tandis que le monde de l’art s’indigne. Le Vantablack est fabriqué depuis 2014 par la société britannique Surrey Nanosystems, et représente à ce jour le pigment de couleur le plus noir n’ayant jamais existé. En effet, ce matériau absorbe précisément 99,96% de la lumière, ce qui fait que tout objet qui s’en trouve recouvert devient quasiment invisible. Cet “ultra-noir” a tout d’abord été développé pour l’industrie militaire, destiné à dissimuler des avions furtifs et des satellites, mais a rapidement attiré le monde de l’art, qui y a vu une source d’inspiration intarissable. Cependant, le brevet déposé pour l’exclusivité du Vantablack vient d’être racheté par l’artiste britannique d’origine indienne Anish Kapoor. Il est devenu le seul propriétaire de l’ultra-noir et détient donc l’exclusivité la plus totale quant à son utilisation. « C’est si noir que vous ne pouvez presque rien voir. Imaginez un espace si sombre qu’en y pénétrant vous perdez toute idée de qui vous êtes, d’où vous êtes et la conscience du temps. Votre état émotionnel en est affecté et, sous le coup de la désorientation, il faut que vous trouviez, à l’intérieur de vous, quelque chose d’autre » a déclaré l’artiste Anish Kapoor. Mais qu’est-ce que réellement le Vantablack ? Il s’agit d’un matériau qu’il faut comprendre par sa structure nanométrique : il est formé d’un tapis de nanotubes de carbones, c’est-à-dire de minuscules surfaces composées d’une seule couche d’atomes enroulées sur elles-mêmes. La lumière, dans sa majorité, pénètre ces multitudes de nanotubes et se trouve réfléchie tellement de fois qu’elle finit par être totalement absorbée. Ainsi, seulement 0,04 % du rayonnement lumineux est renvoyé par les nanotubes à la surface : il s’agit donc de ce qu’il nous est donné de voir à l’œil nu. Le rachat des droits sur le Vantablack représente une grande première dans le monde de l’art, car jamais personne n’avait jamais eu l’exclusivité totale sur un matériau, et fait naturellement polémique. Certains qualifient cette acquisition comme étant abusive, par exemple Christian Furr, peintre de la reine Elizabeth II : « Je n’ai jamais entendu parler d’un artiste qui monopolise un matériau » déclarait-il. Alors qu’Anish Kapoor n’a pas encore réagi à la polémique, il est opportun de rappeler que le plasticien français Yves Klein, qui avait par le passé demandé la création d’un bleu profond unique au marchand de couleurs Édouard Adam, ne l’a jamais breveté, laissant à quiconque la liberté de le travailler. Sources : Sciences et Avenir – RFI Crédit photos : Surrey Nanosystems window._taboola = window._taboola || []; _taboola.push({article:'auto'}); !function (e, f, u) { e.async = 1; e.src = u; f.parentNode.insertBefore(e, f); }(document.createElement('script'), document.getElementsByTagName('script')[0], '//cdn.taboola.com/libtrc/citizenpost-network/loader.js'); par Taboolapar TaboolaContenus SponsorisésContenus SponsorisésContenus SélectionnésContenus SélectionnésÀ Découvrir AussiWorldemandLes géants de la guitareWorldemandAnnulerPourquoi les hommes sont-ils obsédés par les seins des femmes ?AnnulerÀ 26 ans, elle souffre d’une maladie lui en faisant paraître le doubleAnnulerLa ménopause tue t-elle la libido des femmes ?La ménopause tue t-elle la libido des femmes ?AnnulerLe corps d’un homme disparu depuis 22 ans retrouvé grâce à Google MapsAnnulerLes rats-taupes nus kidnappent les bébés des autres pour les transformer en "esclaves"Les rats-taupes nus kidnappent les bébés des autres pour les transformer en "esclaves"Annuler window._taboola = window._taboola || []; _taboola.push({ mode: 'thumbnails-a', container: 'taboola-below-article-thumbnails', placement: 'Below Article Thumbnails', target_type: 'mix' }); window._taboola = window._taboola || []; _taboola.push({flush: true}); Plus d'articles dans : Insolite En Alsace, un retraité et son chien ont été attaqués par des corneilles ! 10 juin 2021, 14 h 54 min Mexique : un trou géant apparu au milieu des champs ne cesse de s’agrandir 8 juin 2021, 11 h 28 min Une “IA artiste” génère des visuels psychédéliques en s’inspirant d’un poème 4 juin 2021, 15 h 42 min Mangez des muffins bleus pour évaluer votre microbiote ! 31 mai 2021, 11 h 17 min Voici Höga, le véhicule électrique en kit de IKEA ! 31 mai 2021, 11 h 16 min Victor Enrich, le designer des constructions impossibles ! 29 mai 2021, 10 h 00 min Actualités : Ils rendent des plantes fluorescentes pour détecter leurs problèmes ! Faut-il craindre le nouveau cycle d’éruptions solaires dans lequel la Terre est entrée ? Sans convection atmosphérique, la Terre serait une véritable étuve ! Le Paratéthys : comment a disparu le “plus grand lac” de l’histoire En réalité, le mégalodon était plus gros qu’on ne le pensait L’avenir de l’éolien offshore pourrait passer par ces gigantesques structures googletag.cmd.push(function() { googletag.display('div-gpt-ad-1587745322361-0'); }); Magazine de vulgarisation scientifique, Sciencepost vous dévoile chaque jour les dernières découvertes et avancées en terme de sciences et nouvelles technologies. Ne ratez pas : En réalité, le mégalodon était plus gros qu’on ne le pensait Climat : la survenue d’un “effet domino” est-elle déjà engagée ? Pollution à l’ozone : voici l’impact qu’a eu la pandémie en 2020 Suivez-nous sur les réseaux ! 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Le Vantablack est une couleur qui est tres noir, seulement 0,04% de limuere peut reflecter sur la surface, et quand tu le vois, on dirait que c'est un petit trou noir sur Terre.

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