Episode details

Available for over a year
Rhod is joined by Dr. Karl to answer your questions on topics like using out of service escalators; how light travels; the properties of titanium, and more.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.

Available for over a year
Rhod is joined by Dr. Karl to answer your questions on topics like using out of service escalators; how light travels; the properties of titanium, and more.
Programme Website