Hi Frederick; Harmony to me doesn't mean it is static, rather the opposite, in that to harmonize it must be dynamic. Superstrings and universal harmony
If you go by the number of researchers involved in it,
string theory is the candidate for a theory of quantum gravity that is most actively studied these days. String theory is descended from the ordinary models of particle physics, but with a crucial difference: Its basic constituents are not point-like particles, but one-dimensional objects, strings.
Strings can do what point particles cannot: they can oscillate in intricate patterns, as sketched in the following animation:
[Animation © Thomas Klose, AEI]
One basic postulate of string theory is that the plethora of possible oscillatory states of a string is responsible for the variety of the different elementary matter and force particles that occur within the
standard model of particle physics. Put simply: there is only one species of string, but depending on how this tiny string oscillates, it acquires the same properties as an
electron, a
photon, a specific kind of
quark or some other
elementary particle. It can be shown quite generally that one of the possible oscillation states of a string will automatically correspond to the properties of a
graviton, a carrier particle of the gravitational force - but without any of the attendant difficulties that arise from trying to include gravity in any of the ordinary quantum theories of forces. This makes string theory a natural candidate for a quantum theory of gravity, but string theory promises much more: Nothing less than a complete unified description for
all forces and all matter particles - the whole world as a consequence of the harmony of strings.