Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs, In this week's episode……as the UK re-joins the EU horizon research programme we hear from the Secretary of State for Science, Innovation and Technology on what she sees as the main benefit from this new deal. Also, scientists discover a way to get lithium batteries charging faster and performing better in the cold, and how and why did we humans lose our tails back in history? Plus we’re looking into potholes, what’s causing them and the research drive to try and fix them permanently. Get the podcast from the BBC Sounds app.