|MadSci Network: Physics|
Hello, Birol, I don't find Gerry Vassilatos credible. Here's a site where he talks about Stubblefield -- too reverently, for my taste. http://www.hbci.com/~wenonah/history/nathan-s.htm Check the opening paragraph: "The scientific historian methodically searches out catalogues of forgotten phenomena by thorough examination of old periodicals, texts, and patent files. The retrieval of old and forgotten observations, discoveries, scientific anecdotal records, and rare natural phenomena provide the intellectual dimension desperately needed by modern researchers who work in a vacuum of dogma." He loses me right there. Forgotten observations are usually that because they are no bloody good. Others have been unable to duplicate the results. And the tone of victimization by "...researchers who work in a vacuum of dogma." -- well, this is a stance often taken by those pushing pseudoscience. Here are the definitions of Telluric Current and Earth Battery: http://www.free-definition.com/Telluric-current.html http://www.free-definition.com/Earth-battery.html That conductive soil in a changing magnetic field can generate voltage is well known. But getting enough energy from this phenomenon to run a motor is doubtful. (The pith ball motor Vassilatos mentions is just a toy.) In fact, telluric currents are generally a pain to engineers. They can cause corrosion and create the need for electric isolation on underground wire runs for communication (Thank goodness fiber optics is available!) You will note a discrepency between Vassilatos' definition of "earth battery" and the free-definition one -- The latter uses dissimilar metals as electrodes, so the moist ground is being used as an electrolyte. Can you do telegraphy or telephony using the earth as a conductor? Sure. But it's doubtful it would work better than the copper wires going from your house to the central switching office. I hope you are not terribly disappointed in my reply. Just judge whether it makes sense. And please keep a healthy skepticism of whatever you read. If a writer claims to have discovered a phenomenon, without an independent verification, it is just a claim. Cheers, Larry Skarin
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