Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites
by Zak on Sunday March 11, 2018 @03:02PM
(#16564268)
There's an interesting demonstration of this on Youtube:
"The Worlds Blackest Black vs The Worlds Brightest Flashlight (32,000 lumen)—Which Will Win?"
https://www.youtube.com/watch?v=AaFdCvnV8PM
To summarize, the flashlight wins, and it's reasonable to expect the effect would be the same with a laser and sensitive detection equipment.
Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites
by detritus on Sunday March 11, 2018 @03:13PM
(#16564311)
@zak (sorry, I couldn't reply directly)
That isn't Vantablack as such though, is it? Afaik, Vantablack proper requires a specific application process [1], which I've mentally envisaged as being something akin to growing diamonds in a lab on a substrate, or applying flocking to materials.
I'd be quite curious to know what the reflectivity would be like on some clever coating consisting of vertically-laid carbon nano tubes, etc.
[1] - https://www.surreynanosystems.com/vantablack/applying-vantab...
And 99.965% absorption is still visible in a bright light.