First shown on RSGB Tonight @8, Peter started out with a brief rundown of the dipole antenna. After that the subject turn deeper into wave theory and radio waves travelling in a vacuum. Some interesting aspects were described. However, the subject is too long to detail here. If interested have a look at; https://www.youtube.com/watch?v=sS2DVuYDo2A     for the entire story.

Near the end of the video there is an interesting Q&A from those who were watching the live presentation.