Here’s a great podcast for you my fellow glass painters. But art is not the subject here. Nor is it craft. No, this time it’s science.
The episode begins with a brief discussion of the history of glass e.g.
The Ancient Egyptians who originally made beads and jewellery
The Romans who introduced glass works across their Empire
The Venetians who discovered (amongst many other facts) that adding manganese oxide made glass clearer.
And then the main focus becomes both fascinating and more technical e.g.
Glass is a “disordered” substance with an often ill-defined transition from liquid to solid
Transparency results from disorder i.e. disorder is necessary for transparency
Colour results from (technical) “impurities”.
Myself, I took comfort from the observation that annealing is a strange phenomenon – even to scientists … You take this material (glass), and hold it at a certain temperature, and, just by holding it, you change some of its fundamental properties.
The discussion jumps around a lot. But stick with it and you’re bound to hear some fascinating scientific facts about this gorgeous material on which we paint.
Here’s a great podcast for you my fellow glass painters. But art is not the subject here. Nor is it craft. No, this time it’s science.
The episode begins with a brief discussion of the history of glass e.g.
And then the main focus becomes both fascinating and more technical e.g.
The discussion jumps around a lot. But stick with it and you’re bound to hear some fascinating scientific facts about this gorgeous material on which we paint.