We get to the point of cutting edge Naked Science this week, answering your science questions and exploring the science of sword swallowing. We find out how the Amazon rainforest could become a carbon criminal, learn how to predict the extent of an avalanche, and celebrate the passing of DD45 - an object that floated past the Earth within the orbit of the Moon. Plus, we find out if you can catch foot odour, if a bath full of vodka would get you drunk, and the delights of Liver A L'Orange! Meera Senthilingam takes a 'thinking walk' with Sir David Attenborough to learn about Charles Darwin,... Like this podcast? Please help us by supporting the Naked Scientists