Teachers act out a play every day that includes soliloquies, dialogue, questions, cues, and demonstrations to evoke a response from their audiences. Learning requires that the students--or audience--see a new concept in a motivating and dynamic environment, a setting that provokes inquiry and an understanding of how new knowledge applies to real…

This paper deals with the features and design of explanations in public physics lectures. It presents the findings from a comparative study of three exemplary public physics lectures, given by practicing physicists who are acknowledged as excellent public lecturers. The study uses three different perspectives: the lecture, the lecturer, and the…