That sinking feeling!
Well, this week I've been experimenting with placing dried clay into water - how does it collapse, how long does it take, is there any difference when its been fired to 100, 200 or 300 degrees C?
Have a look!
This block of cast porcelain was just fired to 100 degrees C - it collapsed in an elegant way, creating delicate feathers and slithers. The water seeps into the clay, and you see sudden collapses.
The collapsing links with the collapse of the coal industry - how to use this sort of approach - still uncertain!