Professor Rob Morrison joins me to talk about ''The Curiosity Show''. A wonderful TV show for children about science that ran for 18 years during the 70's and 80's. Many of the segments have been uploaded to the show's official Youtube channel .

http://www.youtube.com/CuriosityShow

http://www.curiosityshow.com.au/

We also discuss many other topics and have a good old chinwag about all sorts of stuff..
A very reasonably priced DVD set of "The Curiosity Show" is available... Check the links for details.

http://en.wikipedia.org/wiki/The_Curiosity_Show

https://www.facebook.com/CuriosityShow

The name of the black and white card that produces faint colours when spun is the "Benham Disc",... named after its inventor. You should be able to find variations on line -

http://en.wikipedia.org/wiki/Benham's_top

http://www.youtube.com/watch?v=9_0Z4Bi3JQo

http://gethighnow.com/benhams-disk/