this post was submitted on 14 Nov 2023
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Ultra-white ceramic cools buildings with record-high 99.6% reflectivity::undefined

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[–] KapiteinPoffertje@lemmy.world 38 points 1 year ago (1 children)

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.

[–] Silentiea@lemm.ee 31 points 1 year ago (2 children)

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.

[–] intensely_human@lemm.ee 8 points 1 year ago (1 children)

The reason for snow blindness is the fact the snow fills such a high portion of the visual field.

[–] Silentiea@lemm.ee 9 points 1 year ago

Yeah, hence it's unlikely a roof would fill it to the same extent and wouldn't be a problem.

[–] Pulptastic@midwest.social 2 points 1 year ago

We have snow here