Notices
Results 1 to 6 of 6

Thread: Is there an endpoint for Gravitational pull?

  1. #1 Is there an endpoint for Gravitational pull? 
    Forum Senior Booms's Avatar
    Join Date
    Sep 2008
    Location
    The perceptual schematic known as earth
    Posts
    361
    three thoughts that arrived in my mind.

    A) Does an objects gravitational pull ever dimish to zero. Does my body exert a non-zero gravitational effect on Abell 1835?

    B) Most energies diminish as the effects are used, a highly infrared object gets cooler as the heat energy is tranferred to another object, reducing the overall effect. Does the same happen with Gravity? I know the effects would be neigh unmeasurable, perhaps reducing from 9.81mps to 9.80mps over the next billion years, but does it happen? given enough time, will an object with a permenant mass, end up with zero gravitational pull

    C) What is the smallest particle we know exerts gravity, Atoms do. but do Protons, Electrons and Neutrons? and if so, what about quarks and gluons? is there a point at which mass no longer exerts gravity?


    It's not how many questions you ask, but the answers you get - Booms

    This is the Acadamy of Science! we don't need to 'prove' anything!
    Reply With Quote  
     

  2.  
     

  3. #2 Re: Is there an endpoint for Gravitational pull? 
    Moderator Moderator Dishmaster's Avatar
    Join Date
    Apr 2008
    Location
    Heidelberg, Germany
    Posts
    1,624
    Quote Originally Posted by Booms
    three thoughts that arrived in my mind.

    A) Does an objects gravitational pull ever dimish to zero.
    No.
    Quote Originally Posted by Booms
    Does my body exert a non-zero gravitational effect on Abell 1835?
    Yes
    Quote Originally Posted by Booms
    B) Most energies diminish as the effects are used, a highly infrared object gets cooler as the heat energy is tranferred to another object, reducing the overall effect. Does the same happen with Gravity? I know the effects would be neigh unmeasurable, perhaps reducing from 9.81mps to 9.80mps over the next billion years, but does it happen? given enough time, will an object with a permenant mass, end up with zero gravitational pull
    No, a body does not loose its ability to produce a gravitational force. Such a force is proportional to the mass of that body. So, unless matter is destroyed (e.g. via radioactive decay), the force does not change. Gravitation and temperature are completely different things. Temperature is the macroscopic representation of microscopic movements of individual particles.
    Quote Originally Posted by Booms
    C) What is the smallest particle we know exerts gravity, Atoms do. but do Protons, Electrons and Neutrons? and if so, what about quarks and gluons? is there a point at which mass no longer exerts gravity?
    All objects that have a mass or energy (they are equivalent) produce a gravitational force.


    Reply With Quote  
     

  4. #3 Re: Is there an endpoint for Gravitational pull? 
    Suspended
    Join Date
    Oct 2006
    Posts
    769
    Quote Originally Posted by Booms
    ...Does the same happen with Gravity? I know the effects would be neigh unmeasurable, perhaps reducing from 9.81mps to 9.80mps over the next billion years, but does it happen? given enough time, will an object with a permenant mass, end up with zero gravitational pull.
    No, no energy is being used. But check out the Dirac Large Numbers Hypothesis, where he suggested that the force of gravity reduces over time. As it happens I think he was right, but it's something different to what you're suggesting.
    Reply With Quote  
     

  5. #4  
    Geo
    Geo is offline
    Forum Junior
    Join Date
    Nov 2009
    Location
    New Zealand
    Posts
    273
    The average kinetic energy of a body is always above zero, but what about a single particle. A single particle can never have zero gravity in that body.

    But what about a single particle on it's own, yes it can have zero gravity.
    Reply With Quote  
     

  6. #5  
    Forum Radioactive Isotope MagiMaster's Avatar
    Join Date
    Jul 2006
    Posts
    3,440
    No, it still has non-zero gravity, though there's nothing for it to gravitate with.
    Reply With Quote  
     

  7. #6  
    Forum Freshman
    Join Date
    Apr 2012
    Posts
    34
    Quote Originally Posted by Booms View Post
    three thoughts that arrived in my mind.

    A) Does an objects gravitational pull ever dimish to zero. Does my body exert a non-zero gravitational effect on Abell 1835?

    B) Most energies diminish as the effects are used, a highly infrared object gets cooler as the heat energy is tranferred to another object, reducing the overall effect. Does the same happen with Gravity? I know the effects would be neigh unmeasurable, perhaps reducing from 9.81mps to 9.80mps over the next billion years, but does it happen? given enough time, will an object with a permenant mass, end up with zero gravitational pull

    C) What is the smallest particle we know exerts gravity, Atoms do. but do Protons, Electrons and Neutrons? and if so, what about quarks and gluons? is there a point at which mass no longer exerts gravity?
    A-B. Does gravity radiate away from the center of mass? Radiate really isn't the word to use with gravity. The further you would get from the center of mass, the less gravity one would feel. Technically speaking, it never goes away, just gets infinitely smaller. Which means some rock on the other "side" of the universe is probably gravitating us right now. Just in an immeasurably small way.

    C. Everything that has mass, will exert gravitation.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •