The new Christmas must have gadget – a kitchen that teaches you to cook and carve correctly... and in French. And a question answered about microgravity.

Dr Karl answers listeners' weird and wonderful questions about the world of science, which include - why woodsmoke can cause asthma? What causes upside down rainbows? And more on the mysteries of black holes.

Dr Karl and 'Dr' Rhod once again answer all your science questions

This week's edition of the Naked Scientist - how Earth came by its water - scientists think they've found the place in outer space where it all came from. Why people always tend to look on the bright side, often in spite of the odds - and scientists line up for the research equivalent of an Oscar

Dr Karl joins Dr Rhod to answer all your science related questions.

Find out more about the amazing powers of plastics, china's increasing space programme and how bacteria could be used for the latest type of encryption. Dr Chris Smith and his team have the answers.

Dr Karl joins Rhod to answer all this weeks science questions.

The slipperiest substance ever made, and the workings of DEET – the world’s best insect repellent

Can viruses be used as medical cures? Why birds are modern day dinosaurs?And how good is a fish's memory? just some of the weird and wonderful questions asks in the latest edition of the Dr Karl Phone-in

This week, scientists with superhero x-ray vision... well almost, the CT scanning system capable of handling some very large specimens and why playing computer games has led to a breakthrough in understanding HIV.