Any experiment has an abstract result. For example: If throwing a rock from the tower of Pisa gave us result that acceleration of gravity on Earth is 9.8 m/s^2

Any experiment has an abstract result. For example: If throwing a rock from the tower of Pisa gave us result that acceleration of gravity on Earth is 9.8 m/s^2 then that number will be exactly same for throwing any other materials from any other tower on the Earth.