Surface roughness at the nanoscale alters light scattering, heat transfer, and fluid flow

https://damienxebo548.scriblorax.com/posts/top-10-reasons-to-specify-matter-surfaces-commercial-flooring-2

Surface roughness at the nanoscale alters light scattering, heat transfer, and fluid flow, enabling engineered matter surfaces that tailor optical gloss, drag, and thermal emissivity.