Scientists in Hong Kong have demonstrated a new ultra-white ceramic material that can drastically cool buildings by reflecting sunlight and heat at record highs. The beetle-inspired material gets its ability from its nanostructure, stays tough to the elements and should be relatively easy to scale…
Ultra-white ceramic cools buildings with record-high 99.6% reflectivity::undefined
There is a difference between mirror like reflection and diffuse reflection.
Mirror reflection is what you get with metal roofs which beam the sun directly to a target resulting in one spot being blinded.
Diffuse reflection will spread it around, resulting in more light all around which is what we can handle as humans.
There is a difference between mirror like reflection and diffuse reflection. Mirror reflection is what you get with metal roofs which beam the sun directly to a target resulting in one spot being blinded. Diffuse reflection will spread it around, resulting in more light all around which is what we can handle as humans.
Can mostly handle. Snow blindness is a thing, and that’s all diffuse reflection too, not specular. But it’s unlikely a roof would be such a problem.
The reason for snow blindness is the fact the snow fills such a high portion of the visual field.
Yeah, hence it’s unlikely a roof would fill it to the same extent and wouldn’t be a problem.