How do odour-killing insoles stamp on smelly feet? Do submariners' ears pop? How do Portuguese Man o'War jellyfish reproduce? We take on your science questions this week as well as hearing the highlights from the Cambridge Science Festival and making a tornado from flames. Plus, news of octopuses having high definition temper tantrums, why some people are genetically wired to feel more pain, eyeless scorpions that have evolved their way out of a blind alley and how scientists can see what's going in your mind's eye...!

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How is it that the first farms, cities and writing all originated in Mesopotamia, now Iraq? We explore the so-called 'fertile crescent' and fanatical record-keeping in the ancient Near East. We find out how DNA from the body of Tutankhamun hints at his numerous illnesses and we also look at who paddled across the Mediterranean first.

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Could the Earth cope without the Moon, how do safety matches work, what causes hiccups, why don't frosts form undercover, should NASA put people on an asteroid, why do nails grow faster on holiday, and what was here before the Big Bang? Join Dr Chris as he embarks ona brain-stretching scientific tour of the Cosmos for this week's Ask the Naked Scientists!

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We explore the science behind modern farming - we'll be looking at changing farming practices in a changing climate, the advantages of domesticating African fruit tress and how GM peas can improve yield and soil quality!

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