I have a 4-way cross/medal that I was told is the combination of a miraculous medal and the brown scapular.
A Ferris wheel moves from a gravitational force which moves the axle, thus, making the wheel rotate swiftly. 2 people found this useful.
How do pulleys work? A fixed pulley, also known as a simple pulley, does not confer any mechanical advantage. The force needed to lift a load is equal to the downward force of gravity on the load. Using a moving pulley multiplies the lifting force by two, meaning that only half the force of gravity is needed to lift it.