Thanks for that. I was thinking about adding agents to the water. Some sort of gelling agent?
Just as an arch benefits from a massive keystone, a dome would benefit from a water tank at it's summit. To pretension the shell and strengthen it.
Possibly toroidal around an oculus that has a cupola that can be lower to close it?
edit: I hear Blender calling to me. I can feel the frustration already. The current nodel I'd like to emulate is at
Why Can’t American Cities Build 3-Flats Anymore??t=130. Beige monochrome on a reflective grid.