Portal:Physics/Selected article/September 2010


 * The theme for this month is unsolved problems in physics. Some of these problems are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. Other unsolved problems are the result of an inability to in create an experiment to test a proposed theory,  or investigate a phenomenon in greater detail.


 * Hence, theoretical problems are part of quantum gravity, cosmology, general relativity, high energy physics (particle physics), nuclear physics, and others. Empirical phenomena lacking clear scientific explanation are part of cosmology and astronomy, high energy physics(particle physics), astronomy, astrophysics, condensed matter physics, and biological problems approached with physics. Click on the following link to read about this subject, which is supplied with references, and other types of information for further reading.