THE following striking experiment to show the rapidity of the influence of sulphuric acid in removing the invisible film of moisture that in ordinary circumstances adheres to the surface of glass and ...

Italian scientist Luigi Galvani (left) and the steps of a suspended reanimation experiment on frog legs and a sheep. The manicules (pointing hands) illustrate to the reader how the steps should be ...

Testing the toroidal propeller on my electric surfboard to see performance improvements, efficiency, and handling. Watch the full experiment! #ElectricSurfboard #ToroidalPropeller #WaterSports ...