Suggest an edit23:00E=mc2: Thinking Relativity Through: Programme 5: The Speed BarrierBBC Television Mon 4th Nov 1963, 23:00 on BBC Televisionwith Professor Hermann Bondi, F.R.S.Previously shown on SaturdayContributorsPresenter:Professor Hermann BondiResearch:Gerald LeachProducer:Alan Sleath Source: Radio Times Suggest an edit