" examines the standardization of precious metal with the touchstone in the ancient world. This innovation stimulated trade from Greece to Persia, ultimately causing the construction of a huge commercial center and library at Alexandria which included Ptolemy's star tables. This wealth of astronomical knowledge aided navigators 14 centuries later after the development of lateen sails and sternpost rudders. Mariners discovered that the compass's magnetized needle did not actually point directly north. Investigations into the nature of magnetism by Gilbert led to the discovery of electricity by way of the sulphur ball of von Guericke. Further interest in atmospheric electricity at the Ben Nevis weather station led to Wilson's cloud chamber which in turn allowed development of both Watson-Watt's radar and (by way of Rutherford's insights) nuclear weaponry.
Connections is a ten-episode documentary television series created, written and presented by science historian James Burke. The series was produced and directed by Mick Jackson of the BBC Science & Features Department and first aired in 1978 (UK) and 1979 (USA). It took an interdisciplinary approach to the history of science and invention and demonstrated how various discoveries, scientific achievements, and historical world events were built from one another successively in an interconnected way to bring about particular aspects of modern technology. The series was noted for Burke's crisp and enthusiastic presentation (and dry humour), historical reenactments, and intricate working models.