John Tyndale lecturing, Royal Institute, 1870.
© Science Museum / Science & Society Picture Library
Plate taken from the 'Illustrated London News'. Tyndale (1820-1893), a natural philosopher, mountaineer, glaciologist, was also a natural entertainer and spokesman for science. He was first Profesor of Natural Philosophy and later Superintendent of the House at the Royal Institute, where he gave innumerable lectures; some of which were extremely complex, in one case involving 30 experiments on vibrating strings. The setup here involves a series of balances and magnetic coils.