bhaskara`s wheel. perpetual motion machine. perpetuum mobile. physics.

artifice assumption balance base bhaskara bhaskaras circle conjecture conservation continuous curious delusion energy equilibrium error failure fallacy false fault flaw fluid glass guess hydrargyrum hypothesis illustration incorrect invention liquid machine mercury metal mirror miscarriage mistake mobile model motion motionless nonsense perpetual perpetuum physics quicksilver quiescent rendering rotation spin supposition thing thinking tube wheel wood wrong