RV Jones demonstrates the hottest spy gadget in espionage stories at the time - a laser eavesdropper. Watch the full lecture: http://www.rigb.org/christmas-lectures/watch/1981/from-magna-carta-to-microchip/more-and-more-about-less-and-less?utm_source=youtube&utm_medium=social&utm_term=description RV Jones gave the 1981 Christmas Lectures "From Magna Carta to Microchip" which explores what measurement is, the principles by which measurements can be made, and why their applications have been of so much importance in the advance of science and in the development of technology In his third lecture, RV Jones looks at measurement on a very small scale.