As far as I understand things, String Theory has an approach that involves very small scale 'extra dimensions' and that seems to achieve unification. But there's no experimental evidence for this so it's a more a matter of what takes your fancy. The human mind loves to see loose ends tied up and String Theory does just that.Vanadium 50 said:
Vanadium 50 said:
Ok. But I think they should have a reason for that choice of 10 -35m. Why would it be a random value? Does not make sense.sophiecentaur said:
The 10-35m unification refers to the Planck length, which is the smallest possible length in the universe according to quantum mechanics. The fact that physicists have been able to unify gravity at this scale is significant because it allows for a more comprehensive understanding of the fundamental forces of the universe.
Physicists have been working towards unifying gravity with the other three fundamental forces (electromagnetic, strong nuclear, and weak nuclear) for decades. Through experiments and theoretical models, they have been able to develop the theory of quantum gravity, which predicts unification at the Planck scale.
One of the main pieces of evidence comes from the study of black holes. By studying the behavior of black holes, physicists have found that their properties are consistent with the predictions of quantum gravity. Additionally, experiments with high-energy particles have also provided evidence for this unification.
Yes, unifying gravity at this scale can potentially help us understand some of the biggest mysteries of the universe, such as the nature of dark matter and dark energy. It can also help us better understand the beginning of the universe and the concept of the singularity in the Big Bang theory.
While the practical applications may not be immediately obvious, the knowledge gained from understanding unification at this scale can potentially lead to advancements in technology and space exploration. It can also have implications for future theories and models in physics and cosmology.