Mechanical experience. Physicsfun

Friends! Some of my favorite mechanical experiments. The first experiment that You see in the video demonstrates the presence of a moment of inertia. The second experiment is a demonstration of the centrifugal force that turns the ball into a third experiment-the line of fastest descent, also called brachistochrone. This is a rather unusual experiment. And the last most unusual experiment is the movement of a cone against the Earth's gravity . Paradox or illusion? In fact, there is no contradic