- cross-posted to:
- hackernews@lemmy.smeargle.fans
- cross-posted to:
- hackernews@lemmy.smeargle.fans
Ultra-white ceramic cools buildings with record-high 99.6% reflectivity::undefined
Ultra-white ceramic cools buildings with record-high 99.6% reflectivity::undefined
I have aluminium foil covering my windows in summer and that doesn’t blind anyone by far, even in full sunlight.
Not everything reflecting is a mirror.