Would Different Laws Of Physics Affect Gravity?

[Platinum Rhymer]

For example if our universe had different laws would gravity as we know it now still be the same with different laws?

[Bilateralrope]

Depends which laws got changed

[Platinum Rhymer]

All of them...

[Lunatik]

For example if our universe had different laws would gravity as we know it now still be the same with different laws?
Your question is not specific enough, so can't answer it. What do you mean by 'different laws" for example. :)

[Ari Jokimaki]

All of them...

That would certainly change gravity, because one of those laws dictates how gravity works.

[Musashi]

For example if our universe had different laws would gravity as we know it now still be the same with different laws?

No.

[01101001]

Suggested topics for next question:

What will be the value of pi when this universe ends?

What if pi were 3?

Are there any other universes where pi is 3?

Could an alien civilization be so advanced that they could change pi to 3?

Could pi have been some other value before the smart dinosaurs changed it to its current value?

I like to be proactive. I want to start thinking about them now.

[Chip]

...Could an alien civilization be so advanced that they could change pi to 3?...

Using the principal of interior and exterior frames of regular polygons around a circle, by which Archimedes was able to deduce a more accurate value calculation for pi, (between 310/71 and 31/7,) an alien civilization might develop a mathematics that transforms the idea of the Archimedes polygon frame itself, so as to incorporate rather than measure pi, and somehow transform pi into a hyper-pi whose value is 3.

(Just kidding.) :wink: (I don't think this would have an effect on gravity.)

[Platinum Rhymer]

I mean if the universe started from scratch again would it have the same exact laws or would the force laws be tweaked?

[um3k]

I mean if the universe started from scratch again would it have the same exact laws or would the force laws be tweaked?
You do realize that any answer you get to that question will be pure speculation, correct?

[Platinum Rhymer]

Correct, but what would make more sense if our universe started from scratch? new force laws?

[wedgebert]

It depends. Maybe that are laws that dictate how our laws of physics work. Hyper-laws (or would it be meta-laws?) if you will. If so, then even if we start from scratch, we'll have the same laws because the hyper-laws would dictate our laws would form the same way.

Of course, that's pure speculation. And also, if you believe that, then there could be hyper-hyper-laws that control the hyper-laws, ad nasuem.

[Chip]

It depends. Maybe that are laws that dictate how our laws of physics work. Hyper-laws (or would it be meta-laws?) if you will. If so, then even if we start from scratch, we'll have the same laws because the hyper-laws would dictate our laws would form the same way...

You might also have a universe similar to ours but where there is a hidden "law" that determines the actual values of all the fundamental physical constants. If so, beings living there might develop a "theory of the value of constants." The physical nature of such a universe might allow for that. (Then again, maybe this is possible in our universe too, but my mind hasn't been able to find a path around such a problem. ) :wink:

[papageno]

I mean if the universe started from scratch again would it have the same exact laws or would the force laws be tweaked?
This is something we still do not know.

At the moment (i.e., Standard Model) the force laws (and the masses of fundamental particles) have no reason to be fixed at the current values.
You can find papers that speculate about what would happen if a certain physical constant changed its value.

Being able to answer your question, would imply a huge step forward for our knowledge of the Universe (it is actually The Question).
Paraphrasing a quote from Einstein: "Did God have a choice when he created the Universe?"

[Frog march]

What about the uncertainty principal, if all measurements are going to be just levels of probability then things like G(gravitational constant) are going to remain vague, if an object sets off in a trajectory its path is vague then so is G, then maybe G itself fluctuates and always hovers around the same value, the many paths idea may also mean a many G, value.
But for some values of G physics would break down, then so would that possible universe, so G maybe goes up and down never quite settling on any fixed value.
Maybe the value of G is always up in the air, always open to question, it is always evolving, and so must be the other physical constants. not pi or e though, thats a mathematical number.

just a theory of mine, based upon a similar idea i read in a scifi book.