Follow-up serious question: if I paint my car with this stuff, can a policeman tag me with his radar gun? If I wear clothes impregnated with it, would it confuse a "smart" surveillance camera? I'm also thinking if I used it as war paint, a facial recognition cam would probably be awfully confused by what appears to be a hole in my face.
And at headlights otherwise. But if your car has popup headlights and no front plate, and you paint it vantablack, you'd probably be close to invisible to police LIDAR (laser) guns. I'm not sure what the reflectivity of this stuff in the radio spectrum is though.
Id like a baseball cap, painted with vanta black, but with a cheese-cloth style net also painted with vanta black, which can be worn down like a bee-keepers hat, such that facial recognition cant be used against me.
Also, i am anouncing right now my freedom to destroy any facial recognition cameras i come across. Its my fist amendment right to not be supressed with facial recognition because i am free to say anything i want, and using facial recognition is a violation of my first amendment rights.
Oh, about as stealthy as a metal golf ball, painted black?
Put it this way: If you shine a flashlight at a cosmetic hand mirror, does the flashlight shine back and hit you in the eyes? Now tilt the mirror so that the flashlight doesn't blind you.
Stealth surfaces are supposed to work like a tilted mirror.
Now imagine a polished chrome golf ball. If you shine a flashlight at it, you'll still catch a bounce from the flashlight reflection, even if the surface is dimpled.
Compare the chrome golf ball's performance to an icosahedron faceted with mirrors. The faceted platonic solid is less likely to shine the flashlight back at your eyes, depending on it's angle of rotation. And a dodecahedron would perform even better.
Just send the "reflection" back at the donuts connoisseur before the real reflection does and your objective has been reached. Ready made devices for exactly this purpose exist and are dirt cheap.
While we're at it, the photonic equivalent can be beaten by means of special reflective coating. One that whites out the entire photo using the received "flash". Needless to say, this is also widely available & dirt cheap.
Now I’m envisioning a system where the spy drone sows down significantly and little machanized graphene “hairs” stand up all over its body to absorb any wavelengths of radar it wants to avoid...
How do these materials both perform against radar?
Will we be seeing them as stealth paints on planes or satellites?