DNA, Radio Waves and Radio Delays

Chris Smith

Dave Ansell

This week on Ask the Naked Scientists we find out why a slipped disc can't slip out, why you forget your dreams and why digital radio is behind the times - by about 4 seconds!

Also, why present day physics forbids travel to the past, and how you can carry someone elses DNA without being pregnant...

We tackle these questions and more on this weeks podcast.