Abramelin Posted March 13, 2013 #1 Share Posted March 13, 2013 Kelvin's Thunderstorm Lord Kelvin's water-drop electrostatic generator In the late 19th century and early 20th century there was performed a nearly forgotten experiment that generated static electricity by lord Kelvin as shown in the photograph below. http://www.linux-hos...ergy/skelv1.htm http://en.wikipedia....n_water_dropper How to build your own: http://amasci.com/emotor/kelvin.html Between 1858 and 1867, Lord Kelvin also developed a water-drop electrostatic generator, which he called the "water-dropping condenser”. It was sometimes referred to as “Kelvin’s Thunderstorm”. The device uses falling water drops to generate voltage differences by utilizing the electrostatic induction occurring between interconnected, oppositely charged systems. Water runs down from the top, with slightly positively-charged water attracted to the negative ring and slightly negative water attracted to the positive ring. The charged water flows through the ring and into a container. The water traveling through the negative ring becomes H30+ and the water travelling through the positive ring becomes OH-. The charges then build in the ring connected to the container opposite it - attracting even more charge. This results in a positive feedback loop. When the charge eventually reaches a certain threshold, a spark will cross the gab between the rings. Lord Kelvin water droppers have been known to build a 20,000 volt charge with as few as 100 drops of water through each side in less than six seconds. That’s without any external power source – simply utilising the energy of the falling water drops. As you can see, electrostatic generators can be made to be very powerful. Now imagine an electrostatic generator that's unable to discharge and you've got yourself a Joe Cell. The Joe Cell is the perfect electrostatic generator. http://hydrogentechn...d/view.asp&ID=7 1 Link to comment Share on other sites More sharing options...
Abramelin Posted March 13, 2013 Author #2 Share Posted March 13, 2013 (edited) Lecture 15: Ampere's Law, Solenoids, Revisit the Kelvin Water Dropper, Midterm Evaluation (start at 27 minutes) http://videolectures...02_lewin_lec15/ Or watch one of the many videos about this on YouTube: [media=] [/media] Edited March 13, 2013 by Abramelin Link to comment Share on other sites More sharing options...
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