Electrical Engineering with 360+ answers. Active power is power that does actual work - e.g: creating heat, lifting loads, etc. Reactive power is power where the current is out of phase with the voltage, and the Volts x amps doesn't do any real work. Current that charges a capacitor, for example or current that creates the magnetic field around a coil for another. Apparent power is the mathematical combination of these two.
Alfred Carlton Gilbert, Inventor of the Erector Set â Today in History: February 15. On February 15, 1884, the New Haven inventor of the Erector Set, Alfred Carlton Gilbert, was born. A magician, athlete, and savvy businessman, Gilbert enrolled in medical school at Yale in 1904 to pursue a career as a physical education director.
Tesla Invention Of Radiant Energy. It is no secret that Sir William Crookes was the mastermind behind the discovery of Radiant energy properties. His discovery took place in the year 1875, and since then has prompted others into farther experimentation with solar uses. One scientist Nikola Tesla made some interesting discoveries concerning electrostatic charges and their results. His persistence led to the invention of light that we now call radiant energy. Tesla radiant energy discoveries showed that this type of energy was easily transferable from one place to another. He also proved that light traveled almost the same way as sound does, by sign waves.