home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   sci.physics      Physical laws, properties, etc.      178,769 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 178,618 of 178,769   
   Stefan Ram to Stefan Ram   
   Re: A Derivation of Faraday's law from C   
   20 Jan 26 15:02:19   
   
   From: ram@zedat.fu-berlin.de   
      
   ram@zedat.fu-berlin.de (Stefan Ram) wrote or quoted:   
   >Even if one is not familiar with the exterior differential, this   
   >show the unity of Maxwell's equations. They are just one single   
   >law. So, this might make it clear that while "Faray's law" was   
   >found before Maxwell's equations historically, one cannot actually   
   >just split Faraday's law away and consider it in isolation always.   
      
     Sorry, there were some typos above!   
      
     Michael Faraday (1791 - 1867), born to a blacksmith in a London   
     slum, devoured science from books he bound as a teen apprentice,   
     meticulously transcribing Humphry Davy's Royal Institution lectures   
     and boldly presenting himself as a lab assistant in 1813 - Davy,   
     awed by the young autodidact's zeal, hired him despite his wife   
     Jane's persistent snobbery and mistreatment of the lowly upstart.   
      
     Faraday's genius erupted in 1831 with his seminal discovery of   
     electromagnetic induction - now immortalized as Faraday's law   
     (o-int E dl = -d(Phi_B)/dt) - achieved by rigging coils around   
     an iron ring until a twitching galvanometer revealed that   
     a changing magnetic field births an electric current, powering   
     the first dynamo prototype where a spinning copper disc atop   
     a horseshoe magnet generated ceaseless electricity, all while   
     he dazzled Friday crowds with fireworks-like demos, liquefied   
     chlorine for fridges, and twisted light rays with magnets [1]   
     in notebook eureka moments, twice rejecting the Royal Society   
     presidency amid lifelong humility.   
      
     [1] The Faraday effect causes a polarization rotation which is   
     proportional to the projection of the magnetic field along the   
     direction of the light propagation.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca