Dr John Bolton, once of the Radiophysics Laboratory in the CSIRO to conduct secret research on radar for the military, also helped pioneer radio astronomy after the Second World War. 

He was invited to Caltech to show them how to build radio telescopes — but then resigned and returned to Australia to build the legendary Parkes Telescope. 

Guest Jonas Zmuidzinas  Professor of physics  Director of Caltech Optical Observatories  Caltech 

PresenterRobyn Williams