Lisp Witch @alexandria@cybre.space

Nice

broiler chicken performance... wh-

Perhaps the best known "longterm" recording medium today is Archival Vellum -- that is, animal skin, prepared in a way that removes acids from it. The best archival vellum parchment can last 1000 years at *least*, assuming it's kept dry and free from moisture.

This is actually one of the reasons why, since the 1800s articles of British Law have been printed on Archival Vellum and stored in a vault somewhere.

The Magna Carta, signed 800 years ago, is still readable. The book you just bought off Amazon won't be in about 50 years.

(cont)

Different pigments themselves have different light-fastness, which is a measure of how long it takes it to vanish under UV light. If you look at old paintings, sometimes you will see grey or missing colours. This is because the paint literally faded from the page.

In this painting by Jacob Van Es from 1630, you can see not only how the paints have faded over the last 400 years, but also the accumulated grime over the background. Notice the grapes look kinda uniformly yellowy along with the plums and pears, but the strawberries are vibrant.

It's possible that those blackberries were perhaps bluer at one point, or much more vivid and bright. That those grapes were a vivid bright green. But the yellows and reds are the least lightfast colours in the painting, so they have stayed strong these 400 years!

(cont)