Bubbles are spherical, the sphere is the minimal volume that any natural phenomena can be.
That’s why planets and stars are spherical, though the rocky planets such as Earth can be oblate spheroids due to the inelasticity of their surface crusts.
Bubbles are spherical, the sphere is the minimal volume that any natural phenomena can be.
That’s why planets and stars are spherical, though the rocky planets such as Earth can be oblate spheroids due to the inelasticity of their surface crusts.