Apr 12, 2022 03:31 PM
https://www.forbes.com/sites/evaamsen/20...2a18c151b9
EXCERPTS: For thousands of years, artists have used a surprising ingredient in their paints: egg yolk.
This type of paint, called egg tempera [...] doesn’t spread as much as other paints and it dries very quickly so it can be used to create intricate details...
[...] One of the mysteries of egg tempera is why it maintains its color so well. Even in paintings that are several centuries old, the pigments have largely kept their original colors when the artists mixed them with egg yolk.
In one research study from last year, chemists [...] could see some changes in the lipids of the egg yolk, but crucially most of the colors in the egg tempera samples were unaffected.
[...] Another aspect of this method that scientists haven’t quite figured out is the physics of the “stretchiness” of the paint ... a very elastic paint that has a different texture from other types of paints.
A possible step towards understanding the physics of egg tempera a little bit better came late last year [...] a paper describing some of the physical and chemical characteristics of egg tempera... (MORE - missing details)
EXCERPTS: For thousands of years, artists have used a surprising ingredient in their paints: egg yolk.
This type of paint, called egg tempera [...] doesn’t spread as much as other paints and it dries very quickly so it can be used to create intricate details...
[...] One of the mysteries of egg tempera is why it maintains its color so well. Even in paintings that are several centuries old, the pigments have largely kept their original colors when the artists mixed them with egg yolk.
In one research study from last year, chemists [...] could see some changes in the lipids of the egg yolk, but crucially most of the colors in the egg tempera samples were unaffected.
[...] Another aspect of this method that scientists haven’t quite figured out is the physics of the “stretchiness” of the paint ... a very elastic paint that has a different texture from other types of paints.
A possible step towards understanding the physics of egg tempera a little bit better came late last year [...] a paper describing some of the physical and chemical characteristics of egg tempera... (MORE - missing details)