This talk was given at the Saitama Prefectual Kumagaya High School (Kumagaya-city, Saitama pref.) in the context of the JSPS Science Dialogue program, organized by the Japanese Society for the Promotion of Science (日本学術振興会) on the 2th of November 2013.
The purpose of the program is to:
* To make our students more interested in science
* To help our students realize the importance of learning English
* To help our students gain international understanding
During the talk, the students were encouraged to answer easy questions in English. To prevent losses in students attention due to the steep language barrier from Japanese to English, the students were provided with "please slow down"-signs to give them a simple possibility of feedback.