String theory? what is the lenght of smallest string or biggest string?

Answer 1

First, its a theory/conjecture, so there is no proscribed length.
Just a conceptual way to make sense of attractive forces outside
conventional theories of attraction involving dark matter between objects that plug in cosmological theories of the universe.
No, it isn't little or big strings! LOL. Not in the literal sense
whatsoever. Just a theory to maker sense of equations that
don't flesh out broad cosmological theories of attraction.
There are lots of interesting books about it.......try wikipedia's
references and websites on the bottom for some information.
We don't really know ourselves as physicists what it it. We really don't know what anything/everything is, so pay no attention
if it loooks like we're laughing on here. Just keep in mind theat theories are conceptional, and are not meant to be taken literally.
When you get to such a large/small level, theories cannot be
proved by conventional measurements, and concepts are just
shorthand to wrap ideas/equations/data together in a package
that makes sense.....people say the string theory has outlived
its usefulness, but all theories get discarded when they become eclipsed by new data.conjecture/concepts.....a theory is a large package of ideas in physics people are working with at any time
with a lot of little ideas inside. Relativity and quantum theory
are others. Think of them as giant mind-sets that seem to plug together smaller ideas, and make sense of them when put together as a whole in the theory. You can say that about evolution as well. Science is just a game, and we are kids
trying to find the biggest packages we can find, toy chests,
if you will, to store our toys(ideas/concepts/equations).
When we find new "toys" to play with, we look for a new
toychest(theory), and put out new toys in the new chest.
Hope this helps!
PS Per the planck measurement, that is the smallest possible
force we can concieve of per the mass of the subatomic particles
we can take apart in accelerators at this point. Again, it's so small, and the exclusionaty principle effect considered, we have no way except conceptionally to measure the planck constant, so it is far more concept than measurement. Perhaps we will have a way in the future of measuring such a constant in the real physical world, but all we can do is piece it together. No use even giving it a parameter anyway, as it is 100% unmeasureable, and
there may be smaller particles/forces than what we've broker down by accelerators anyway, which would change the parameters of Planck's constant.

Answer 2

String theory posits that a string is one Plank length long or 10^-35 centimeters. To put this in perspective, assume your finger nail is increased to the size of the observable universe. In which case, a Plank length would be about the size of your finger nail now.

All the strings are the same size: one Plank length long, but infinitely thin. Some strings are looped into vibrating circles; while others are laid out without looping. But both shapes vibrate and the frequency they vibrate at (according to the theory) determines what each string looks like in the real world (as opposed to the quantum world).

For example, strings vibrating at one frequency may look and act like photons in the real world. Strings vibrating at a different frequency may look and act like gravitons, the fundamental gravity particle. Check out the source for a really readable, enjoyable description of string theory and other strange stuff (like parallel universes).

String theory is not universally accepted among physicists because, unlike a true theory that can be tested to validate it, no one has yet come up with a feasible test for string theory.

Answer 3

I read somewhere that the string theory has no use at all. So why the question?

Answer 4

"i'm afraid not" hahahahahaha