Smart Materials

30 January 2009
Presented by Kat Arney, Meera Senthilingam.

This week we're finding out about smart material which have the ability to monitor and repair themselves as well as materials that can keep themselves clean. We'll also be finding out how a cave in South Africa has changed views on our ancestry as well as how bees could be helping the fish farming industry. Plus, in Question of the Week we find out when our brains begin to count!

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