|Hubble Ultra Deep Field. Public domain image. SOURCE.|
The history of the search for a unified theory started with James Maxwell, who from 1861-65 demonstrated that electricity and magnetic fields were related, in his theory of electromagnetism. Then, in 1881-84, Heinreich Hertz discovered light and radio waves were also examples of electromagnetism. Albert Einstein tried for 30 years but could not find a theory that united the remaining forces.
There have been several theories proposed as solutions to GUT. One is supersymmetry (it proposes that all matter has a massive "shadow" force carrier), and another string theory (the idea there are more than three dimensions and that particles consist of strings and membranes), but there is no theory that has been broadly accepted.
And today there are three Notable scientists who have worked on unified field-related research. Three, because I was having trouble narrowing it down to one (links will take you to past A-Z Challenge posts on this blog, with the info about the scientists at the bottom):
If a unified theory is found, what kind of effect do you think it will have on physics? On other fields?
-----The Golden Eagle