Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

  
Tractor Talk Discussion Board

Re: Hole versus Electron Theories


[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]

Posted by jdemaris on January 27, 2010 at 07:25:59 from (67.142.130.13):

In Reply to: Re: Hole versus Electron Theories posted by John T on January 26, 2010 at 15:01:29:

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?


Replies:




Add a Reply

:
:
:

:

:

:

:

:

:

Advanced Posting Options

: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.



 
Advanced Posting Tools
  Upload Photo  Select Gallery Photo  Attach Serial # List 
Return to Post 

TRACTOR PARTS TRACTOR MANUALS
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 ]

Home  |  Forums


Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle? ... [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]

Copyright © 1997-2024 Yesterday's Tractor Co.

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.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy