1
vote
0answers
17 views

Why phtalocyanine Blue (PB15) has such a strong Red reflexion and how to avoid it? [closed]

Proposal: *color * Hello, I often noticed the strong Red reflexion of the phtalocyanine Blue (Pigment Blue 15.x) and it sometimes annoys me a lot. I've seen that this happens when the pigment is ...
2
votes
2answers
45 views

Errata could also be for “non-technical” textbooks

Proposal: Errata Say, I have had ideas of posting and collecting errata in textbooks teaching foreign languages, or science textbooks (maths). These topics are not "technical", but also quite ...