Issues

‘Bibliometrics’—the analysis of publication and citation data—indicates that Europe has taken the lead from the US in experimental high‐energy physics, which raises the question of how the US should respond.

Even if two systems consist entirely of slowly moving constituents, nonrelativistic theory may not be adequate to determine the interaction energy of the systems when they are very far apart.

Understanding the way students and scientists think is the key to developing more effective methods of science teaching and is itself an intellectual challenge.