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Space can have density by which I mean a large volume can be squeezed into a smaller area.

Quote from: trevorjohnson32 on 24/05/2019 19:41:21Space can have density by which I mean a large volume can be squeezed into a smaller area.How might one express this density? Liters per liter? How might space with density 1 liter per liter be distinguished from space with 3 liters per liter? I suppose if there were identical 1kg rocks in each of the two liters, the one in the 3 liters-per-liter box would be measurably less dense since there's thrice the space in that same volume. Maybe it would float.

The difference in potential is about 6100 km at a standard Earth 1G, less than 1% of the total gravitational potential.

Quote from: HalcThe difference in potential is about 6100 km at a standard Earth 1G, less than 1% of the total gravitational potential.Can you explain this further, please?Is this talking about the gravitational potential of the "Moon + Sun + Galaxy" vs "Earth + Sun + Galaxy"?

Where does the "6100 km at a standard Earth 1G" come in? Is this referenced to a point "at infinity" compared to our galaxy?

Clocks run a bit faster on the moon because of this potential difference. I said that the figure is less than a percent of the total, so that means it would take at least 100x that energy to get to zero potential energy. If there was a direction you could go to escape all mass in the universe, one could get to this zero potential energy and clocks would run a non-dilated time. There's nowhere where you can do this, but you can still compute it.

If there was an 'aether' or gas filling space, it would have currents in it like any gas, which would cause fluctuations in a gravity field. If space were like an atmosphere things that move through space would slow down from the resistance.

Yes aether has currents. Yes currents cause fluctuations in gravity.Aether offers no resistance to things moving at constant velocity. But offers resistance to changing velocity, creating inertia.

we'll find out what GR people think next.

I don't understand this very well(because I am 13), but the aether in space could be the solar wind/ background radiation of other stuff.

Also, is the mass giving the particles gravity. I do not understand. I am asking this because I read somewhere that a field of “higgs boson” particles might be the particles that give atoms their mass. Is this right and could this be part of the way gravity works? Please let me know.

All experiments that have looked for an aether have either turned up ambiguous or negative results. It is now thought that light is a vibration in the electromagnetic field instead.

Quote from: Kryptid on 02/11/2020 01:44:22All experiments that have looked for an aether have either turned up ambiguous or negative results. It is now thought that light is a vibration in the electromagnetic field instead.They look for the aether with interferometer's which are flawed in the first place. The light would have a different measurement travelling in the aether on an outward path. In all those experiments they bounce light back along the same path, eliminating any momentum gained or lost this way. But General relativity people willargue long maths to their setup and eventually win. It's very frustrating.

But General relativity people willargue long maths to their setup and eventually win. It's very frustrating.