- The Naked Scientists ENHANCED PODCAST - Stripping Down Science

Is standing or reclining best for the perfect suntan? Can we see atoms? Why add pennies to Big Ben's pendulum? It's a question and answer show so we shoulder your scientific conundra! We'll find out how web companies keep up with growing data demands, what causes white ridges on fingernails, and why a clean glass keeps cola fizzier. Plus, in Kitchen Science, we find out how to balance a broom whilst blindfolded!

Computers that can lip-read, a robot that follows your brain waves, prosthetic arms controlled by thinking about fingers that have been amputated, the future of nuclear fusion, Bandaids for batteries, why oral cancer rates are up 200% on 20 years ago and a brain stimulator for obsessive compulsive disorder. While the team take a well-earned Easter break, join Dr Chris for a look at the latest science from the AAAS in Washington DC.

For Easter this week, we explore how synchrotron radiation can be used to probe and find answers to a variety of scientific questions as we bring you a special programme of highlights from the Diamond Light Source podcast. We hear how changes to key proteins can cause hypertension and pre-eclampsia, how green rust could provide a greener future and discover a new type of magnetic material which could make data storage faster, cheaper and more compact. Plus, we explore a new form of solar cell which could make solar energy more affordable in the future.

Two pioneers in the field of gene therapy join us to discuss how they're developing modified viruses to deliver healthy copies of genes to save patients afflicted by lethal genetic diseases. We also hear how energy can be harvested from footsteps and heartbeats to power nanodevices, and how a new SWARM of satellites is about to be deployed to study the Earth's magnetic field from space. Plus, in the news, how "ums" and "ahs" can boost a baby's learning power, how mankind talked his way out of Africa and how scientists are recreating schizophrenia in a Petri dish...

Do dogs get ticklish? What wakes up mosquitoes at meal times? Do animals use weapons? In this fast-paced Question and Answer show we also focus on the nuclear threat from Fukushima and hear how gut bugs raise the risk of heart disease, why flaps for wind turbines have got engineers in a spin, and why tidiness stops stereotyping. Plus, how to make a balloon fireproof and what causes dark circles under the eyes when we get tired...

This week, we go wireless to explore the science of mobile phones. We hear how new error-correction techniques are promising to put an end to poor quality communications, we meet a new system that lets you borrow the antennae of other nearby phones to boost your data download rates, and a major study that's examining the potential health impacts associated with mobile phone use. Plus, in the news, the now not-so-anomalous Pioneer probe anomaly, the chemical cure that can flatten phobias and how a biased worm could overturn an election victory...

Life in inaccessible places - including in caves sealed off from the Sun and around deep-sea vents - is the subject of this week's Naked Scientists. In these intriguing environments, bacteria replace plants as the primary producers, extracting energy from the minerals around them to sustain a whole ecosystem. We also hear about the bone-eating worms that make a meal of whale carcasses that fall to the seafloor, an engineering trick for separating mined-metals from mud and, in the news, why the world's waves are getting bigger, how sperm can be grown in a dish and a gene that drives melanoma. Plus, the answer to the question where on Earth would you weigh the most...?

This week, we find out what lies beyond the limits of our Universe as we discuss multiverses, higher dimensions, string theory and supersymmetry. We find out how these ideas develop from basic principles and how the LHC can help to confirm, or refute, their existence. In the news, how quartz creates mountain ranges, progesterone excites sperm, and why birds can't help but fly into things. Plus, Meera and Dave find out how to engineer electrons to travel close to the speed of light, and Simon Singh explains how to discover the distance to a far away star.

Can you electrocute weeds? Why do teeth go wobbly? And which cells last a lifetime? In this bumper edition of the Naked Scientists, we tackle your pressing science questions and find out how the shuttle manoeuvres in space, what makes wounds itch, whether reverse osmosis can make moonshine and if static can stick a cat to a wall. Plus, how diamonds deal death to tumours, cooperation in the elephant world and an update on the Japanese earthquake situation. We also hear how a hairy leg can help you bend water to your will, and Diana discovers why potato peelers never need sharpening!

From anti-ague to anti-Alzheimer's agent: over the 112 years since it was first trademarked, Aspirin has evolved from popular painkiller to powerful preventative against heart attacks, strokes and even cancer. In this week's show we trace its history from the extraction of aspirin-like chemicals from willow bark to the creation of the drug itself. Plus, in the news, how the chemistry of life could have come to Earth in a meteorite and why we need to be careful with stem cells: a new study finds they have an above-average mutation rate. Also, a new technique to etch graphene sheets with single-atom precision, an insight into how our drugs are made and how painkillers hit pain where it hurts...

Just the bare bones this week as we find out how exercise strengthens the skeleton and how new scanning techniques can help to pick up osteoporosis earlier and inform its management. We also try out a new gadget for measuring the force muscles can apply and, in the news, discover what a self-healing tumour can tell us about common cancers, evidence that mammalian hearts can repair themselves and a new laser-based tool for diagnosing melanoma. Plus, how the bones of people who died up to a hundred years ago are helping scientists to combat chronic back pain by building a computer model of the backbone...

We look to the skies in this week's Naked Scientists show, to uncover ways to monitor and change the chemistry of the atmosphere. We join researchers on board an air-sampling aeroplane to discover how atmospheric chemistry changes once the sun sets, and we discuss options for engineering the climate if things get too hot. In the news, the Ecuadorian population that may hold the genetic key to a disease-free life, and the rocks that move themselves around in Death Valley. Plus, a targeted muscle re-innervation strategy to afford amputees more powerful prosthetic control.

How do magnets multiply? What keeps an aeroplane in the air? How do wild animals avoid incest? It's open season on science questions in this week's Naked Scientists. We'll find out if oil extraction leaves a cavity, can cranberry juice cut urine infection rates and what happens when two lightning bolts collide? In the news, evidence of bipedalism in an early human ancestor, how oily fish helps avoid common causes of blindness and how smartphones are taking the pain out of cardiac rehabilitation. Plus, in Kitchen Science, the unexpected physics of a flying balloon.

This week we're getting inside the workings of the next generation of chips that are set to pack a bigger computing-punch but at a fraction of the energy-expenditure of todays' models: CTO Mike Muller joins us to explain the revolutionary technology that leading microprocessor-maker ARM is developing. Also, energy-efficient world-wide computing - we find out how distributing data-processing demands around the planet can turn waste energy into useful computations, simultaneously saving CO2 emissions, and in the news this week, a new malarial mosquito threat, rejection-free artificial blood vessels and the electric cap that helps users solve maths puzzle they previously found impossible.

Leprosy goes under the microscope this week as we uncover the origins of one of the oldest known human diseases, recognised this week on World Leprosy Day. A quarter of a million new cases are diagnosed every year, but how is the illness spreading, what damage does it do to the body and can it be stopped? We also hear what archaeologists are unearthing about the history of leprosy and where it came from in the first place. Plus, why it's time to rethink the workings of the circadian clock, brain scans for bilingualism, cow-stomach bacterial genes for biofuels, and the engineering that lies behind the cat's eye...