Suggest an edit23:10E=mc2: Thinking Relativity Through: Programme 4: Einstein's Principle of RelativityBBC Television Mon 28th Oct 1963, 23:10 on BBC Televisionwith Professor Hermann Bondi, F.R.S.An Outside Broadcast Science and Feature production from the Royal InstitutionA BBC Educational broadcastPreviously shown on SaturdayContributorsPresenter:Professor Hermann BondiResearch:Gerald LeachProducer:Alan Sleath Source: Radio Times Suggest an edit