I will explain the physics behind the famous Riemann hypothesis. In particular, I will deconstruct my recent work done in collaboration with Yang-Hui He of Oxford, UK and Vishnu Jejjala of IHES, France (arxiv:0903.4321[math-ph]). The emphasis will be placed on the Hilbert-Polya approach (i.e. trying to find a physical system with eigenvalues given by the Riemann zeros) and the crucial role played by the physics of quantum chaos, as originally pointed out by Michael Berry. Finally, I will outline what role a ``chaotic Riemann string theory'' is expected to play in connection with our recent results.

I will discuss the possibility to use a high energy neutrino beam from a muon storage ring to provide one way communication with a submerged submarine. Neutrino interactions produce muons which can be detected either, directly when they pass through the submarine or by their emission of Cerenkov light in sea water, which, in turn, can be exploited with sensitive photo detectors. Due to the very high neutrino flux from a muon storage ring, it is sufficient to mount either detection system directly onto the hull of the submersible. The achievable data transfer rates compare favorable with existing technologies and do allow for a communication at the usual speed and depth of submarines.

- Talk cancelled.

Over the last years, gauge/string duality has been extended to include gauge theories with an arbitrary number of flavors. We study the flavoring procedure in the light of calibrated geometry and discuss the special case of a type IIA dual of N=1 super Yang-Mills with flavors. Relating our results to the standard type IIA/M-theory duality, we find that the usual oxidation formulas cannot accommodate for the additional flavor branes. We address and solve this issue by considering M-theory with torsion, which allows us to construct source-modified equations of motion for eleven-dimensional supergravity.

The NuTeV collaboration extracted a value for the Weinberg angle that has a 3-sigma discrepancy with the accepted Standard Model result. In the NuTeV analysis a non-trivial correction must be made for the small neutron excess in the steel target. We found that these additional neutrons have another, hitherto neglected effect, namely they generate an isovector-vector field which modifies the structure of all nucleons in the target. This represents a new correction for the NuTeV experiment, that explains roughly half of the disagreement with the Standard Model. We will discuss the impact of this result on our understanding of the structure of bound nucleons and also highlight some further ramifications, for example, in parity violating deep inelastic scattering on nuclear targets.

We study the classical motion of some string configurations in asymptotically AdS_5 backgrounds. We argue that for some configurations the motion is chaotic. Using the AdS/CFT correspondence we comment on the implications of this classical chaotic motion on the dual field theory and its possible implications for black hole physics.