On April 7th Erik and Ronald Rietveld will give the Annual Art & Science Lecture in the Aula of Utrecht University. In earlier years this lecture was given by Prof. Paul Schnabel, Prof. Henkjan Honing, and Prof. Vincent Icke.
For more information on this public event (in Dutch): http://www.sg.uu.nl/programma/voorjaar-2014/kunst-en-wetenschapslezing
And an integral recording of the lecture (in Dutch) is available here: http://www.sg.uu.nl/opnames/kunst-en-wetenschapslezing/kunst-en-wetenschapslezing
Erik Rietveld gave a preview of this lecture on national radio in NTR-program De Kennis van Nu (in Dutch as well). The link to this can be found here: http://www.sg.uu.nl/opnames/science-caf%C3%A9-utrecht/science-caf%C3%A9-31-maart