Historically, the conflicting opinions derived from Paul Dirac's "Hole Theory ca. 1930s" and " the Electron Theory" ca. 1890s" had much to do with the choice of positive or negative ground in early automobiles and tractors. That is . . . if we can believe what is written in historical accounts. I'm well read on the subject, but can't say I was there at the time, or knew any of the people actually involved. The general mindset, from what I've read specifically on the subject, the Hole theory showed more benefits towards postive ground and better metal corroisoin protection, and the Electron towards the negative ground. Many schools that taught electric theory favored one or the other. Yes some schools were biased then, just as many are today. I don't see it as being much different that the modern arguments between Ford and Chevy, BetaMax versus VHS, Blue Ray versus HD DVD, etc.
Paul Diracs Hole theory dealt with the absence of electrons. It was modified in the 1930s via the "Quantum Field Theory." Enrico Fermi also added to it, specifically in regard to the electron effect on metals.
So, I'm wondering what it is you are saying? None of this exists in historical accounts? You don't agree there was ever such disagreement? I can provide hundreds of source citations and some from primary documents.
This information certainly is discussed in the historical record when it comes to electric theory and engineering. And, I haven't found anything else near as strong as it relates to the choice of ground systems during those early times. Have you?
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.