It’s been a while since physics for me, but I was under the impression that this only really applies when pressure is greater inside the solid shape. In this ca

It’s been a while since physics for me, but I was under the impression that this only really applies when pressure is greater inside the solid shape. In this case, it seems roughly equivalent to pulling a vacuum inside a soda can at sea level, which fairs quite poorly for the soda can, and I cannot imagine an unfortified sphere-ish shape performing better.