Politics, republicanism, etc apart, I wonder if Putin watched the Red Arrows and other military precision and discipline at the weekend. And that’s just us…
Archimedes principle:
A body at rest in a fluid is acted upon by a force pushing upward called the buoyant force, which is equal to the weight of the fluid that the body displaces. If the body is completely submerged, the volume of fluid displaced is equal to the volume of the body.