Models on the boundary between classical and quantum mechanics.

Arguments that quantum mechanics cannot be explained in terms of any classical theory using only classical logic seem to be based on sound mathematical considerations: there cannot be physical laws that require 'conspiracy'. It may therefore be surprising that there are several explicit quantum systems where these considerations apparently do not apply. In this report, several such counterexamples are shown.

The making of the standard model.

A seemingly temporary solution to almost a century of questions has become one of physics' greatest successes.