Can a Planet Made of Glass Generate Free Energy?

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SUMMARY

The discussion centers on the theoretical concept of a planet made of glass generating free energy through light blueshifting in a gravitational field. Participants clarify that while light can experience blueshift when moving down a gravitational well, it simultaneously undergoes redshift on the return journey, resulting in no net energy gain. The premise of using a gravitationally filled box with mirror walls to create perpetual energy is deemed flawed, leading to the conclusion that the idea lacks scientific validity.

PREREQUISITES
  • Understanding of gravitational effects on light, specifically gravitational blueshift and redshift.
  • Familiarity with the principles of thermodynamics and energy conservation.
  • Knowledge of the concept of negentropy in physics.
  • Basic comprehension of the properties of light and its interaction with different mediums.
NEXT STEPS
  • Research the principles of gravitational blueshift and redshift in detail.
  • Explore the laws of thermodynamics, particularly the conservation of energy.
  • Investigate the concept of negentropy and its implications in physics.
  • Examine the properties of light in various mediums, including vacuum and reflective surfaces.
USEFUL FOR

Physicists, students of theoretical physics, and anyone interested in the implications of gravitational effects on energy and light behavior.

Pony
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As far as I know, if vacuum antigravitates, it makes the light that travels through it redshift, e.g. in a very large empty box with mirror walls, light will just lose energy.

I am interested in the reverse effect, if we had a very large box or planet with mirror walls, that is filled with something that gravitates, will that make the light inside of it blueshift, and generate free energy (negentropy)? ((Thus allowing mankind to exist forever, at least according to the currect state of physics.))
 
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Pony said:
As far as I know, if vacuum antigravitates...
It doesn't, and without that premise the rest of the question makes no sense. Light can be blueshifted as it moves down in a gravitational well, but there is a corresponding redshift on the way back up so no net energy gain from bouncing the light back and forth through the planet.

As it is based on a mistaken premise this thread is closed.
 
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