Before revision: ExamplesSome famous scientific demonstrations include: Al-Biruni's reaction time Alhazen's camera obscura, lamp experiment and magnifying lens Al-Jazari's crankshaft, elephant clock and programmable robots Avenzoar's parasites Detonating a cloud of flour Foucault's pendulum Galileo Galilei's ball experiments, pendulum and telescope Heron's fountain and aeolipile Ibn al-Nafis' pulmonary circulation and coronary circulation Gyroscopic bicycle wheel Nylon rope trick Prince Rupert's Drops Shooting a candle through a plank Taqi al-Din's alarm clock, steam turbine Using a linear motor as a gun Using compressed air to drive a water rocket Using liquid nitrogen to shatter a rose William Harvey's circulatory system Note: many scientific demonstrations are potentially dangerous, and should not be attempted without considerable laboratory experience and appropriate safety precautions.
After revision:  Note: many scientific demonstrations are potentially dangerous, and should not be attempted without considerable laboratory experience and appropriate safety precautions.