String Theory

You are probably wondering by now what all this has to do with string theory, after all, that is what this site is about. String theory is the link between general relativity and quantum mechanics, the big and the small, the heavy and the light. It combines general relativity’s gravity formulas with quantum mechanics, all based off of one idea.

The previous assumption was that the smallest possible particle is a “point particle”, an immeasurable small dot. String theory simply says that this is not so, and instead matter is made up of vibrating strings in the shape of rubber bands. What’s the difference you may ask? The most important difference is that the strings are the size of Plack’s length. Since nothing can be smaller than Plack’s length, and all of the quantum fluctuations that occur with gravity are at sub-Plack’s length, physicists essential say that these fluctuations are irrelevant and don’t occur due to the minimum length.