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Vantablack can make a flat disk of aluminium float on water
newtboyProbably, but there are all kinds of clear coating. They could develop one with minimal reflective properties and minimal absorptive properties, but you're right, even then it would decrease the effectiveness, but maybe not so much that it would lose it's usefulness.
I think in most applications, the nano fibers are encased in resins or other chemicals that cause them to clump together, making them much safer (note that I don't say "making them safe").
In pure powder form, yeah, they're a bit scary to have something that can float in air that can also burst cell walls. I always used a facemask and gloves when I was in his "lab", and even so I'm sure I was contaminated. Now I wish I had worn a full anti-contamination suit.
Clearcoating this stuff would remove its blacker-than-black properties. It would then start to reflect light. At which point, why would you favor this expensive shit over regular paint? I haven't seen details on how the sprayable Vantablack is applied, but if it were mixed into a liquid for application, it would have the same problem, unless, somehow, the surface of the hardened material were burnt away, evaporated off, or chemically reduced so that the carbon material could protrude from the substrate, that may allow the light absorption properties to persist. But I don't know how they accomplish that, other than they say it's a complex process that requires a specialist. I still wouldn't try brushing up against it, just like I wouldn't try sitting there inhaling paint fumes after painting a car. There's a reason precautions are taken in that process as well. I just know that something small and damaging enough to burst cell membranes sounds like something I wouldn't want in a product I'm handling with direct contact with my skin, or with any remote possibility of it rubbing off and getting into the air.
Aerogel: one of the coolest materials ever made
messengerI remember a different "lightest substance on earth" which was also developped by NASA, but it wasn't anything like this. It was whitish, lighter than air, very soft, and oddly enough, edible. Even with it's protective plastic wrapping on, it floated in air. Anyone else see that show?
Dag's In Ur YouTubez Stealin' Ur Embedz
fireflyLove the title, love the grunting. I too, thought dag was going to float an air biscuit...!
Man on ground fixes plane in air
Farhad2000Please people, the pilot could easily have floated the air to a smooth landing by gliding it down like a glider (all pilots learn this).
I think the dramatic angle was added by the television crew, because it wouldn't seem as exiciting if tehy just said "Yeah we could have glided the plane to a stop, but fixing the landing gear and wings would kill me, so lets try something else first."
Looks alot like a stunt too. Considering his landing gear failed... and he somehow manages to coordinate a resuce attempt while doing circles around the airfield?