Why Is Ice Slippery?

Should we blow up objects on a collision course with Earth? Or will they do less damage left intact? More importantly, is there a gene for hating marmite? And what makes copper such a good conductor? How would a caveman cope in modern society? What's the secret to how balls spin in sport, and why does wrapping vaccines and antibiotics in silk make them last longer. Plus, why physics says Batman's cape won't work... Like this podcast? Please help us by supporting the Naked Scientists

14 Jul 201259min

Super bainite, a surprisingly-strong steel, is the subject of this week's Naked Scientists. We discover how it's made in the metallurgical equivalent of a pizza oven, why it makes the best bearings and how, even when it's full of holes, it also makes great armour. In the news, a nanotechnological tool to unblock blood vessels, a dust cloud that's disappeared around a nearby star and have we found the Higgs? Plus, can your cutlery affect the flavour of food? Like this podcast? Please help us by supporting the Naked Scientists

7 Jul 201259min

Later this month, the 2012 Olympics kicks off in London. With hundreds of thousands of people expected from overseas, is this the perfect trigger for a pandemic? This week we're looking at the public health implications of events like London 2012. We discover why an understanding of crowd psychology can avert disasters, and how mathematical models can predict and prevent jams in human traffic. Plus, a new technique to communicate with "locked in" patients, the evidence for warm blooded dinosaurs, and does ice really help to treat an injury? Like this podcast? Please help us by supporting the Naked Scientists

30 Jun 201259min

Science and technology can catch criminals and tackle terrorism. This week, we're exploring two ways to sniff out concealed explosives and a new technique to lift fingerprints from surfaces that have been cleaned or burned. In the news, a new way to halt Huntington's disease and how to identify the influential online. Plus, could gene therapy cheat a DNA test? Like this podcast? Please help us by supporting the Naked Scientists

23 Jun 201259min

Why does a head injury, or standing up too quickly, make us see stars? Are slug pellets painful? How do flies fly in an elevator? We take on your science questions this week, and find out why we should let food ferment, what makes batteries get hot and if the strings in string theory are real. Plus, a new drive to improve science education, new vistas for Voyager 1 and new veins from stem cells. Like this podcast? Please help us by supporting the Naked Scientists

16 Jun 201258min

How do we look for life beyond Earth? And how did it first get started down here? To help us take on these big questions, we explore the science of SETI and the chemistry of creating life. Plus, science gets cinematic as we meet the scientific adviser for Prometheus, and find out how his work could help us understand alien atmospheres. In the news, how to sequence a baby using just the mother's blood, and the simple intervention that could prevent millions of malaria cases. In Question of the Week, can we create life in the lab from just elements and heat? Like this podcast? Please help us by supporting the Naked Scientists

9 Jun 201259min

This week, we're introducing the new Naked Genetics podcast - This time, Kat Arney takes a look at the world of top models - not the kind that won't get out of bed for less than ten grand, but the model organisms used by researchers all over the world to answer some of the most challenging questions in biology. We'll also be hearing about the origins of polar bears, the extinction of Tasmanian tigers, fitter frogs with faster-changing genomes and promiscuous bees. And move over Beyonce, because our gene of the month is the curvaceous Callipyge - Greek for beautiful buttocks. Like this podcast? Please help us by supporting the Naked Scientists

2 Jun 201229min

This week we explore the role of microbes in drug development, food production and soil fertility. We investigate how bacteria such as Streptomyces are used and improved to make antibiotics, discover how gut microbes in cattle can be manipulated to increase growth and reduce environmental impact, and we visit the Chelsea flower show to learn how Rhizobia found in the roots of legumes could be used to improve crop growth and food availability. Also, in the news, how shift-work could affect your fertility, a new method of data storage using DNA, the key to growing the tastiest tomatoes and the... Like this podcast? Please help us by supporting the Naked Scientists

26 Mai 201259min