Re: Interstellar Propulsion idea using an Asteroid and a few comets!

From: Rob Dekker (rob_at_verific.com)
Date: 09/01/04 

Date: Wed, 01 Sep 2004 08:58:17 GMT

"Henry Spencer" <henry@spsystems.net> wrote in message
news:I3A15A.9rr@spsystems.net...
> In article <T1093891542@djwhome.demon.co.uk>,
> David Woolley <david@djwhome.demon.co.uk> wrote:
> >> ...The line of action of gravitation appears to be instantaneous
> >> between orbitting bodies, so that distance is a non-issue to the
effect.
> >
<snipsnap>
> There is nothing that constantly
> travels back and forth between the Earth and the Sun to keep Earth in its
> orbit, ...

This is an assumption.
I think the current theory postulates that 'gravitons' are constantly
exchanged, at speed of light.
This is in analogy to all other forces of nature, where some 'particle' is
associated with the force.

But hard proof either way is still is not there...we have not observed
gravitons as particles (in some quantum effect), because their energy is so
absurtly small, so we cant measure their speed directly...

> --
> "Think outside the box -- the box isn't our friend." | Henry Spencer
> -- George Herbert |
henry@spsystems.net

Relevant Pages

  • Re: Interstellar Propulsion idea using an Asteroid and a few comets!
    ... > travels back and forth between the Earth and the Sun to keep Earth in its ... > orbit, ... ... I think the current theory postulates that 'gravitons' are constantly ... This is in analogy to all other forces of nature, where some 'particle' is ...
    (sci.physics.relativity)
  • Re: Colonizing space?
    ... our fair share of thorium for the clean energy that it can deliver. ... users anywhere on demand, improves life on Earth, by lowering the cost ... into Earth orbit, and using nuclear pulse lifters to place significant ... The moon as already stated must be mined and is at the bottom of a ...
    (sci.space.policy)
  • Re: Space port/dock/ship yard location
    ... to increase human presence across the solar system. ... regular flights operate between Earth and Moon. ... Once sufficient capacity is available on orbit, ... These are powere by laser beams from orbit, ...
    (sci.space.policy)
  • Re: Griffin on Loss of U.S. Space Leadership
    ... There are hotels in high inclination orbits for spectacular views of Earth, and vehicle assembly hangars in low inclination for departure to points beyond Earth orbit. ... There are huge radio telescopes on the far side of the Moon, protected from the incessant radio noise of our industrial planet, and at the poles are research facilities and tourist spots, using the water ice hidden in the craters there. ...
    (sci.space.policy)
  • Where the Matter Comes from for EE
    ... Consequently, the Earth expansionist, must ... collision or augmented from within - as in a mass generation process. ... Earth expansion advocates consider the evidence of Earth expansion to be ... In a universe of n particles each particle has n-1 momentum states as ...
    (sci.geo.geology)