Experimental Predictions

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Can someone give me some specific experimental predictions that come from string theories--things that at least in principle could experimentally unambiguously be confirmed or disproven?

Thanks.
 

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Can someone give me some specific experimental predictions that come from string theories--things that at least in principle could experimentally unambiguously be confirmed or disproven?

Thanks.
Since you said "in principle", it's easy. Just measure graviton scattering amplitudes and compare with string theory. You should see an infinite sequence of resonances at beyond Planck energies, due to an infinite number of massive particles in string theory. This task is easily done with a trans-Planck energy collider of galactic size.

If you drop "in principle", then no one knows whether there will be any in our lifetime.
 
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No theory can be unambiguously confirmed. There's always the potential that some future measurement may disprove it.
 
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