Are we push or attracted to a planet?

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    Planet Push
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SUMMARY

This discussion centers on the nature of gravity, debating whether it is a force that attracts objects to Earth or if it can be conceptualized as a push from particles. Participants reference John W. Moffat's "Reinventing Gravity" and Georges-Louis Le Sage's 1758 theory, which proposed that particles exert pressure on bodies. The consensus leans towards gravity being a pull force, supported by Einstein's General Theory of Relativity, which describes gravity as a fictitious force arising from non-inertial frames of reference. The conversation highlights the complexities of gravitational models and the challenges in reconciling alternative theories with observational evidence.

PREREQUISITES
  • Understanding of Einstein's General Theory of Relativity
  • Familiarity with Newton's Law of Gravity
  • Knowledge of particle physics and force interactions
  • Basic mathematical skills for analyzing gravitational equations
NEXT STEPS
  • Study Einstein's General Theory of Relativity in detail
  • Explore the historical context and implications of Le Sage's theory of gravitation
  • Investigate experimental evidence supporting or refuting push versus pull gravity theories
  • Learn about gravitational waves and their implications for our understanding of gravity
USEFUL FOR

Physicists, students of gravitational theory, and anyone interested in the fundamental forces of nature and their implications for our understanding of the universe.

  • #31
Barwick said:
I don't know that pull gravity has shown any more evidence than push theories. They'd behave mostly the same.
What about the drag force mentioned on WP?
 
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  • #32
brainstorm said:
So you're conceptualizing this push-gravity as a type of radiation that is blocked by mass where more mass = more blockage?

Essentially. I'd lean towards the most elementary particles being the ones that absorb it to some degree, or are affected by it. Whether it's the radiation actually running into matter, or possibly just interacting with it by passing close enough by, I don't know. Just thinking out loud.
 
  • #33
Sorry. Just making sure I'm not having a nightmare.

PF is entertaining discussions on push gravity?

What's next? Calls for submissions of PMMs?
 
  • #34
Barwick said:
I know, this is all speculation, but that's what science does, it thinks, looks at evidence, makes predictions, tests those, thinks again, etc...
True, but that's not what PF does. We don't generate new science, we teach existing science. Thread locked.
 

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