0
votes
1answer
66 views

Explanation for the notion that physical laws break down at the Big Bang

I've often heard the phrase "physical laws break down at the big bang". Why is this? Divide by zero? Please provide the mathematics.
15
votes
3answers
488 views

Why is gravity so hard to unify with the other 3 fundamental forces?

Electricity and magnetism was unified in the 19th century, and unification of electromagnetism with the weak force followed suit, bringing into play the electroweak force. I've been told that ...
0
votes
3answers
158 views

The Role of Gravity among the Fundamental Forces of Nature

If we look at the standard model, we have 4 fundamental forces which include Gravity, Electromagnetism, Nuclear weak force, Nuclear strong force. I would like to look at Gravity for a minute. ...
5
votes
1answer
357 views

Do all the forces become one?

Were the forces of nature combined in one unifying force at the time of the Big Bang? By which symmetry is this unification governed? Are there any evidence for such unification of forces? Has ever ...
0
votes
1answer
167 views

Which theory is closest to Theory of Everything? [closed]

To present, Which theory is closest to Theory of Everything? In the future, it probably including into Theory of Everything. Can you describe more detail or attach links that I can reading after?
5
votes
2answers
486 views

Other possible theories (other than string theory) which are generalizations of the standard model with incorporation of gravity

The only finite mathematical framework that incorporates both the standard model of particle physics and gravity under one umbrella that I am aware of is string theory. I would like to know whether ...