In this episode of The Naked Scientists: As the UK rejoins the EU Horizon research programme, we hear from the Secretary of State for Science, Innovation and Technology on what she sees as the benefits 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?Michelle - Horizon isn't a EU exclusive scheme. What Horizon is, is it's the world's largest research collaboration program. So for the UK to reassociate is a big deal, not just for the scientific... Like this podcast? Please help us by supporting the Naked Scientists