Results 1 to 4 of 4

Thread: Magnetically charged Singularities?

  1. #1 Magnetically charged Singularities? 
    New Member
    Join Date
    Oct 2014
    I was thinking about doctor who one day (I am whovian) and I was thinking about how one might harvest black holes for energy. My first thoughts were through hawking radiation but a more pressing concern arose about this being that the black hole would need to be stabilized so nothing would get sucked in so I thought of electromagnetism. I continued thinking about the topic realizing that black holes form from stars and that stars are extremely hot and therefore plasma (ionized) meaning that black holes would almost definitely be magnetically charged to some degree.

    My specific question is this: Is there any reason a black hole couldn't necessarily be charged and could hawking radiation be harvested for energy?

    Reply With Quote  


  3. #2  
    Genius Duck Moderator Dywyddyr's Avatar
    Join Date
    Jan 2013
    Scunthorpe, UK
    Read some of Charles Sheffield's McAndrew or Behrooz Wolf science fiction.
    Many of those stories revolve around the use of black holes as a power source (and, since Sheffield also happens to be a physicist/ mathematician (double first) it's as accurate as he could make it).

    "[Dywyddyr] makes a grumpy bastard like me seem like a happy go lucky scamp" - PhDemon
    Reply With Quote  

  4. #3  
    Moderator Moderator Markus Hanke's Avatar
    Join Date
    Nov 2011
    Quote Originally Posted by AgentSCI View Post
    Is there any reason a black hole couldn't necessarily be charged
    Yes, black holes can in theory carry net electric charge - such black holes are called Reissner-Nordstroem ( when not rotating ) or Kerr-Newman ( when rotating ) black holes.

    could hawking radiation be harvested for energy?
    No. Hawking radiation is associated with the presence of a past horizon, and much like Unruh radiation it is a modification of an observer's vacuum ground state as compared to a stationary Minkowski observer somewhere far away from sources of gravity. You cannot extract energy from the ground state of a system for the purpose of locally performing work with it.
    Reply With Quote  

  5. #4  
    Your Mama! GiantEvil's Avatar
    Join Date
    Apr 2010
    Vancouver, Wa
    So, what would happen if we fed enough ions to a black whole such that the charge force were to equal the gravitational force (noting that gravity is not really a force)?
    I was some of the mud that got to sit up and look around.
    Lucky me. Lucky mud.
    -Kurt Vonnegut Jr.-
    Cat's Cradle.
    Reply With Quote  

Similar Threads

  1. Singularities and nothing.
    By Jerryboy in forum Astronomy & Cosmology
    Replies: 4
    Last Post: March 28th, 2013, 10:36 AM
  2. Singularities and in-escapability
    By darkrealm in forum Astronomy & Cosmology
    Replies: 5
    Last Post: June 15th, 2012, 03:53 PM
  3. Integrating over Singularities
    By Golkarian in forum Mathematics
    Replies: 12
    Last Post: April 14th, 2012, 03:15 PM
  4. Speculations on Singularities
    By Max Time Taken in forum Personal Theories & Alternative Ideas
    Replies: 7
    Last Post: August 21st, 2011, 02:31 AM
  5. Magnetically Levitated Speakers?
    By William McCormick in forum Electrical and Electronics
    Replies: 7
    Last Post: May 3rd, 2009, 05:45 PM
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts