I believe this is the paper in question: https://pubs.acs.org/doi/10.1021/acsami.9b08290
Black Blacker Than Vantablack
41–50 of 101 posts
Re: Black Blacker Than Vantablack
#42Earlier quoted context omitted.
I was thinking about car/plane applications. At first thought, it's "that reflects no light that's a terrible idea". Thinking further, the absolute absence of anything itself stands out from a normal background, day or night. Would be a bit interesting to see.
These things have applications for stealth aircraft as they often absorb radar as well as visible light. But even for visible light, if you're looking at something painted vantablack in broad daylight, you only see a silhouette--much like WWI "Dazzle" camouflage, it's very difficult for the brain to process what you're looking at.
That's very interesting, I was thinking about stealth bombers. Do you think it would have applications in say, military uniforms? I wonder how it compares to digital camo, mirror based camo, etc in regards to detection.
Re: Black Blacker Than Vantablack
#43I believe this is the paper in question: https://pubs.acs.org/doi/10.1021/acsami.9b08290
More than an order of magnitude lower reflectance compared to VANTABLACK and NIST VANTA
Re: Black Blacker Than Vantablack
#44In a room with the walls coated with vantablack, a vantablack cloak would be an invisibility cloak.
Re: Black Blacker Than Vantablack
#45Earlier quoted context omitted.
These things have applications for stealth aircraft as they often absorb radar as well as visible light. But even for visible light, if you're looking at something painted vantablack in broad daylight, you only see a silhouette--much like WWI "Dazzle" camouflage, it's very difficult for the brain to process what you're looking at.
That's very interesting, I was thinking about stealth bombers. Do you think it would have applications in say, military uniforms? I wonder how it compares to digital camo, mirror based camo, etc in regards to detection.
Carbon nanotubes are similar to asbestos fibers, so it's not something that you'd want to put in a garment.
Re: Black Blacker Than Vantablack
#46I feel like they missed the opportunity to name it None More Black [1]. [1] https://www.youtube.com/watch?v=zSkGtW-fQ3s
I'd like one of these to be named fuligin as in The Shadow of the Torturer.
Re: Black Blacker Than Vantablack
#47Earlier quoted context omitted.
An almost perfectly black and almost perfectly anechoic chamber with almost zero external sound. Peaceful or nightmarish?
Wouldn’t a pitch black room achieve the same effect with much less cost/effort? As far as I know the idea of these compounds is to absorb light, but if you get rid of light to begin with then you don’t need them?
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Re: Black Blacker Than Vantablack
#48I think it would be cool to walk into a room painted entirely with this material. I bet it would be so disorienting that people would fall down and get vertigo. So weird.
An almost perfectly black and almost perfectly anechoic chamber with almost zero external sound. Peaceful or nightmarish?
I have been inside a large anechoic chamber and it was very weird experience and it was only a partial anechoic chamber and had a normal floor.
Re: Black Blacker Than Vantablack
#49Earlier quoted context omitted.
An almost perfectly black and almost perfectly anechoic chamber with almost zero external sound. Peaceful or nightmarish?
Wouldn’t a pitch black room achieve the same effect with much less cost/effort? As far as I know the idea of these compounds is to absorb light, but if you get rid of light to begin with then you don’t need them?
You don’t experience black in absolute darkness, more of a very dark static-like fizzling grey. In order to experience the deepest black, you need to contrast it with something lighter.
Re: Black Blacker Than Vantablack
#50I think it would be cool to walk into a room painted entirely with this material. I bet it would be so disorienting that people would fall down and get vertigo. So weird.
It would just be....completely dark? I had this experience when working at a mine at one point, and if you went down one of the tunnels and switched off your headlamp.....it was absolute darkness. Like, we think that our bedroom at night is "completely dark" - but that's usually not true, that's always some source of light, after some adjustment you can see at least faintly. In an underground corridor without any lights at all it was very uncomfortable, it was like completely losing one sense of perception entirely.