Radio frequency (RF) plasmas are attractive as electron beam sources because they allow for a design where the cathode dose not participate in electron production while providing high efficiency and long life operation. Traditionally, hollow cathodes or tungsten filaments have been used as electron sources because of their high electron current density and relatively low power requirements. However, their operational lifetime is limited by cathode and filament deterioration, contamination, and barium diffusion rates, and in some cases requiring a large amount of inert feed gas, thus rendering them less suitable use in corrosive environments and sustained use. The Non-ambipolar Electron Source (NES) is a device that produces electron beams from plasma created with RF fields in a magnetized
Cost-effective dye solar cells developed by OrionSolar have significant advantages over traditional solar cells. Here, Dr. Jonathan Goldstein, Chief Scientist and Founder of OrionSolar, is explaining the benefits of his innovation, as well as some surprising materials in his solar cell.
How much better will it work if I put one on both sides ??? By the way; There are NO bearings on this rigg. Eveything is steel against steel. And the star wheel that powers the pendulum is made from a Skill saw , carbid tooth blade and there is an un-real amount of friction at this point , With the sharp point of the tooth digging into the metal push point. Useing a digital scale the pendulum is 22 pounds. The driving weight is a 1/2 gallon Vodka bottle with 13 pounds 10 Oz. of steel shot, droping exactly 2 inches with each push. Center of pivot to center of pendulum is 46 inches. The pendulum is swinging 23 inches higher than bottom dead center. That means it is swinging at 45 degrees. I perposly built it with all this friction KNOWING That if I could get it to runn at all. It COULD be i