Demonstrates Newton’s law of universal gravitation in that the Earth’s gravity accelerates all objects equally in a vacuum, regardless of mass i.e. that a heavy object (a British guinea) and a light object (a feather) will fall at exactly the same rate.

Drop a steel ball and a feather in vacuum. See how fast they fall. A vacuum pump is required for this experiment (not included). 6mm tubing to connect the tube to a vacuum pump is also required (not included). Teacher notes included.