gravity not a pure force, but emerging force.

[PGTART]

Well this might interest you, turns out "dark matter", and "dark energy", .. are not required.
By an explanation of a Dutch theoretical scientist Erik Verlinde; gravity is an emerging force.
Emerging is something that is what we feel but is not a basic future of out universe.
like temperature is what we feel though its actually radiation and speed of coliding atoms.
Unlike electric, and magnetism and nuclear forces.
 

his proof can be read here : https://arxiv.org/pdf/1611.02269v1.pdf

A big questions remains, what is the impact of this for kerbal universe and interstellar mods ??  

[KSK]

13 minutes ago, PGTART said:

A big questions remains, what is the impact of this for kerbal universe and interstellar mods ??  

Absolutely none whatsoever. Correction - almost none whatsoever.

For the stock game, the gravitational model used is a simplified Newtonian model, that is a force between two (and only two) bodies which obeys an inverse square law. It makes no difference at all whether we assume that force is due to an emergent phenomenon of some kind, spooky action at a distance, or magical strands of invisible unicorn hair which bind the Kerbal universe together.

Most mods will use that simplified model too, although I know of one that implements n-body physics and I suppose if you were crazy keen, you could mod in gravity based on general relativity, although in practice it would amount to tiny tiny corrections to Newtonian gravity at the speeds normally attainable in KSP. Likewise, I suppose you could mod in Verlinde gravity if you really wanted to.

No idea how it would affect interstellar mods. Depends whether those mods actually attempt to take relativistic effects into account.

If we're trying to 'explain' the kerbal universe (for example the existence of super-dense planets), then we're into the realm of fiction anyway. As it stands, the kerbal universe simply wouldn't work, so again, it makes little difference how gravity is supposed to work in that universe.

[Tex_NL]

30 minutes ago, PGTART said:

SNIP

Already posted this:

 

[PGTART]

Reading some more of him, its not mentioned a lot but he also does away with the big bang.
This is a day to remember the day we see a new Einstein.

9 hours ago, KSK said:

Absolutely none whatsoever. Correction - almost none whatsoever.

For the stock game, the gravitational model used is a simplified Newtonian model, that is a force between two (and only two) bodies which obeys an inverse square law. It makes no difference at all whether we assume that force is due to an emergent phenomenon of some kind, spooky action at a distance, or magical strands of invisible unicorn hair which bind the Kerbal universe together.

Most mods will use that simplified model too, although I know of one that implements n-body physics and I suppose if you were crazy keen, you could mod in gravity based on general relativity, although in practice it would amount to tiny tiny corrections to Newtonian gravity at the speeds normally attainable in KSP. Likewise, I suppose you could mod in Verlinde gravity if you really wanted to.

No idea how it would affect interstellar mods. Depends whether those mods actually attempt to take relativistic effects into account.

If we're trying to 'explain' the kerbal universe (for example the existence of super-dense planets), then we're into the realm of fiction anyway. As it stands, the kerbal universe simply wouldn't work, so again, it makes little difference how gravity is supposed to work in that universe.

i was a bit joking there, but for a real world suppose gravity works different, this might perhaps change the route to nearby stars ?

[lajoswinkler]

On 11/8/2016 at 3:37 PM, PGTART said:

Unlike electric, and magnetism and nuclear forces.

Magnetic force is a relativistic consequence of an accelerating source of electric field.