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 ...

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...

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