- The Naked Scientists ENHANCED PODCAST - Stripping Down Science

What happens if you urinate on an electric fence? We find out the answer to this and some of your other science questions on this week's Naked Scientists, including why chilli peppers are red, how does squinting help you see further and what's the best way to align your laundry with the wind? Plus, why blue food colouring could reduce the damage of spinal injury, how shrimps could catalyse biodiesel production and the physics behind the regularity of raindrops...

We dig deep into the science of rubbish, refuse, waste and recycling...

The latest in the science of fertility, IVF and pregnancy... We find out how pre-implantation tests could improve the success of IVF and how stress during pregnancy affects foetal development. Plus, why knowledge is its own reward, how a jockey's posture makes horses run faster and how science publishing on the web is about to change. In Kitchen Science, Dave finds out how a bag of liquid cushions a developing baby inside it's mother!

Award winning Canadian hip hop artist Baba Brinkman brings us his Rap Guide to Evolution, an hour of clever, witty and scientifically accurate rhymes that will have you seeing Darwin from a whole new perspective. Baba explores the history and current understanding of Darwin's theory, combining hilarious remixes of popular rap songs with clever lyrical storytelling that covers Natural Selection, Artificial Selection, Sexual Selection, Group Selection, Unity of Common Descent, and Evolutionary Psychology.

We seek the Science of Sight on this week's Naked Scientists, discovering how deep sea fish use clever bioluminescence and biological mirrors to cope with the darkness of the deep. We hear how our brains choose what sights to pay attention to, and what a bees brain can teach us about how we see optical illusions. Plus, salt-tolerant GM crops, statins stalled by sluggish blood and how the turtle got it's shell. In Kitchen Science, we fool our eyes into seeing confusing colours...

This week, we're taking on your science brainteasers! We find out why toothpaste ruins other flavours, whether humans have a mating season and why food goes in multicoloured, but comes out brown... Plus, fighting Fido's fleas with fungus, stressed men take more risks, and predicting if hepatitis B will lead to liver cancer. In Kitchen Science, we make a fruity fireball with orange peel.

This week, we look into new ways of putting a tiger in your tank! We find out how pond life could help make eco-friendly biodiesel and how new types of batteries can power electric cars for further than ever before without running out of juice. Plus, how Margaret Thatcher's face can tell us how monkeys recognize each other, what sharks have in common with serial killers and why dolphins are a bit like jet fighters. And in Kitchen Science, we see how batteries work in Arctic conditions.

This week we dig into into the science of farming and food production. We find out how transgenic plants can help us dispense with the need for chemical pesticides and how giant greenhouses at the shoreline can be home to super-efficient farms of their own. We explore the problems faced by our sweet honey bee and in Kitchen Science we do some plant modification of our own - no transgenics knowledge needed, just food colouring...

On this Naked Scientists Question and Answer show, we discover how storms create slow earthquakes and how a local star, betelgeuse, could explode very soon. We also hear of an accurate way to date pottery and explore the physics of helicopter seeds. Plus, why hurricanes rotate in opposite directions either side of the equator, the ultimate fate of stars and how to boil your fishtank without harming the fish. All this and in Kitchen Science we snap some spaghetti to seek the physics of pasta!

This week, we seek the science of Architecture. We find out how rapid prototyping technology could help us print out entire houses, and how natural light and ventilation could cut our energy bills. Plus, giggling gorillas tell us how laughter evolved and birds that learn from their neighbours. In Kitchen Science, Dave challenges you to build the best bridge, using only a single sheet of A4 paper!

How does nature inspire technology and engineering? We find out how bamboo may make effective wind turbines, and how the material that makes up locust tendons could soon be in your shoes and electronics!

Science gets under your skin on this week's Naked Scientists, where we find out how human skin colour evolved to make the best of our sunlight. We explain why albino people have no skin pigment at all and how to heal wounds without leaving scars. Also, the nano-scale media storage that will last a billion years, the toxic bite of the komodo dragon and the biological link between cancer and depression. Plus, we shine a light on jaundice phototherapy, with the help of a urinating glass baby!

We're open to your questions on the Naked Scientists this week, finding out how photosynthesis works underwater, exploring the sex lives of barnacles and discussing if rockets punch holes in the ozone layer. Plus, a viral cause of hypertension, how bees stick to petals like velcro, and a new, super-dense deuterium - 130,000 times denser than water! We hear about the new generation of eBook readers, and in Kitchen Science Dave vacuums his bathroom scales to weigh the air!

This week, we're diving into the science of clean water, finding out why rivers and ponds are essential for wildlife, and how alien invaders are colonising our waterways. Plus, how a diet of glycerol makes yeast live longer, how microbes in mosquitoes can block malaria and how planting trees could reduce your electricity bills. We hear about the European Space Agency's Planck and Herschel missions to study the formation of galaxies and the fate of the universe, and in Kitchen Science, we explore the carbonated chemistry of fizzy water!

On this week's Naked Scientists, we explore the engineering and materials science that will give rise to the future of transport! We find out how jet engine parts grown as a single crystal of superalloy will make flights more efficient, and how clever computer control make it easier for trucks to turn. Plus, pain-free injections for the needle-phobic, Boogie with birds and the synthesised sound of Swine Flu proteins. In Kitchen Science, Ben and Dave look back over 7000 years to seek the science of the wheel...