TIL When you open your eyes in a prefectly dark room you don't see black, but " eigengrau ", a shafe of grey en.wikipedia.org Submitted by mic3ttaa t3_zzmcr2 on December 31, 2022 at 5:23 AM in todayilearned 53 comments 282
Thelgow t1_j2d9grx wrote on December 31, 2022 at 11:32 AM And eigengrau is very helpful to me when having a migraine. Permalink 1
Viewing a single comment thread. View all comments