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Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.

In this week's episode…. we discuss self test kits to help doctors bear down on cervical cancer - We find out how successful they are. The jelly batteries that could be used in wearable tech devices, including implanted in your own brain and why seagulls keep trying to steal your chips and how to stop them.

Plus Titans of Science continues this week with Susan Solomon who is one of the first people to respond to reports that the ozone layer had an Australia sized hole in it.

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