- #1
Gold Barz
- 467
- 0
If there were other universes being created all the time (and that's a big if), do you think that the laws would be different or would they all follow the same basic physical laws?
Are Physical Laws Consistent Across Multidimensional Universes?
In summary, the conversation discusses the possibility of other universes existing and the potential differences in their physical laws. While the basic laws of physics and chemistry may remain constant, the constants within those laws could potentially differ in other universes. The concept of multidimensional universes is also brought up, with the idea that the laws may not apply the same way in different dimensions. However, the discussion concludes that there is no way to know for sure without actual evidence from these alternate universes.
- #2
Danger
Gold Member
- 9,799
- 253
While the basic laws might not be variable, the constants would almost certainly be different.
I think... :uhh:
I think... :uhh:
- #3
.:JimmY:.
- 37
- 0
Well all the laws, equations in physics and even chemistry 'd be same through out our universe and will not be affected by the creation of any other universe no matter where or when. But it is very certain that all the laws in our universe may not hold same in any other universe, there e may not be equal to mc^2, proton may not be stabe or something so on...
- #4
Crosson
- 1,259
- 4
The fact that an object at relative rest has total energy E = mc^2, in all its relevance as a conserved quantity, can be derived from the homogeneity of time (the fact that now is not fundamentally different than later). Of course, we must also agree that our universe is a four dimensional manifold and that there exists a maximum relative speed, but these are reasonable requirements.
- #5
Renge Ishyo
- 282
- 1
It depends. If "someone" were to create an entirely different universe based on some different substances who is to say that everything can't be different? Maybe he will get bored with all this "spinning spiral" nonsense and use straight lines and squares? Of course, you can't really answer this question with science because no experimental evidence exists to talk about such alternative universes (all science can do is attempt to describe the universe we are in and the things that appear to be constant in it).
- #6
Gold Barz
- 467
- 0
Is there anything that forbids the constants or laws to change?
Would the physical laws apply the same way in 3D to multidimensional universes?...I am guessing that it would not be the same.
Would the physical laws apply the same way in 3D to multidimensional universes?...I am guessing that it would not be the same.
- #7
ahrkron
Staff Emeritus
Science Advisor
Gold Member
- 760
- 2
The problem with this question is that it is hard to make it precise.
To imagine a 5D universe, we already need to disregard some facts of what we do observe. Once this first step is taken, one needs to define a bound to the kind of changes that we are willing to accept; otherwise, any physical law can be tossed just as the number 3 for the number of spatial dimensions.
To imagine a 5D universe, we already need to disregard some facts of what we do observe. Once this first step is taken, one needs to define a bound to the kind of changes that we are willing to accept; otherwise, any physical law can be tossed just as the number 3 for the number of spatial dimensions.
- #8
pmb_phy
- 2,952
- 1
When I create my first new universe I'll let you know.Gold Barz said:
Pete
- #9
.:JimmY:.
- 37
- 0
Well eulicd said universe can only exist in 3 dimension, then came Einstein and said 3 dimensions r not enough and introdused 4th. Now string theorists suggested there are 11 dimension, which is hardly doubted. But the bottomline is E has always been equal to mc^2.Gold Barz said:
1. What are physical laws?
Physical laws are fundamental principles or rules that describe the behavior and interactions of matter and energy in the universe. They are based on observations and experiments and are used to make predictions about the natural world.
2. Are physical laws absolute or can they change?
Physical laws are considered to be absolute, meaning they are always true and do not change. However, our understanding and interpretation of these laws can evolve over time as new evidence and technologies become available.
3. How are physical laws determined?
Physical laws are determined through the scientific method, which involves making observations, forming hypotheses, and conducting experiments to test these hypotheses. If the results of the experiments support the hypothesis, it may become a physical law.
4. Are physical laws arbitrary?
No, physical laws are not arbitrary. They are based on empirical evidence and are continually tested and refined to ensure their accuracy and reliability. They are also consistent and universal, applying to all objects and phenomena in the universe.
5. Can physical laws be broken?
In general, physical laws cannot be broken. However, there are some circumstances in which a physical law may appear to be broken, such as in extreme conditions like black holes or at the subatomic level. These instances are still subject to the laws of physics, but they may challenge our current understanding of them.
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