5 Live Science Podcast

How deep under the sea can you dive, and what shape should your submarine be? When you boil water for a second time, why does it seem to be hotter? Just two of the questions answered by Dr Karl this week. Plus do you know about the healing power of dog saliva? It's chic to be geek on the science phone in!

Are the “worm” graphs displayed during live televised political debates biasing voters? Is there a chemical cure for a fear of heights and why is the Pioneer Probe going slower than it should?

How serious to health are the leaks from the Fukishima nuclear plant? Dotun and Dr Karl are joined by Professor Dr Dale Bailey who's an expert in medical radiation science at the University of Sydney.

This week we hear about a breakthrough in the skin cancer melanoma, how scientists have managed for the first time to produce sperm in a culture dish and a possible future treatment for macular degeneration.

How do birds hear if they have a hole through their heads? Where does matter come from? Just some of the questions put to Dr Karl this week for the Up All Night science phone in.

Dr Karl discusses a breakthrough in how sperm get turned on: scientists have discovered how the female hormone progesterone activates sperm so they can fertilise an egg. The findings could also lead to new treatments for infertility and help to develop the next generation of contraceptives.

Japan's Fukushima Daiichi nuclear facility seems to be on everyone's mind tonight. Dr Karl endeavours to answer those atomic questions.

The Naked Scientist this week analyses how big the earthquake and tsunami in Japan have been, asks how diamonds can help treat cancer and slices through to the truth about the humble potato peeler.

Dr Karl joins Rhod to answer all the latest science questions.

On the latest edition of The Naked Scientist - a new technique that could hold the key to the next generation of computer chips based on a brand new material. What is the popular painkiller that's just celebrated its 112th birthday? As well as all the latest news from the world of science.

Jamie Oliver asks our very own Naked Scientist, Dr Chris why his yorkshire puddings are better than those made by his wife. Other matters up for discussion include diamonds, the four minute mile and mushroom clouds.

How ancient bones are about to help us to treat modern bad backs and breakthroughs in heart disease and melanoma detection. Dr Chris Smith and the Naked Scientists have the answers.

Dr Chris sits in for Dr Karl and the universe is the main topic of conversation. The origins of the first exoplanets, the creation of the moon and why a vacuum didn't cause the Big Bang. Plus, why living in colder climates makes you colder.

Dr Chris Smith with news from the annual American Association for the Advancement of Science meeting in Washington.

How could solar flares disrupt global communications? Have you ever heard of upside down rivers? Dr Karl and for a special bonus week, Dr Chris have the answers to another weeks of science conundrums.

Evidence that eating oily fish can reduce the risk of developing some common forms of blindness and a clever new way to see inside the body.

Dr Dotun sits in with Dr Karl as they discuss the shadows of the sun, why snow keeps you warm and the different uses for urine.

Dr Chris Smith and the team are here with all the latest science news.

Once again Dr Karl attempts to answer all your science related questions.

On this week's edition of Dr Chris Smith looks at Leprosy Day, which is intended to raise awareness of the 250,000 new cases of leprosy that are still occurring around the globe every year. Also Ben Valsler and Diana O'Carroll have been taking a look at some of this week's top science stories including some science that's straight from the horse's mouth or rather the cow's rumen - researchers have...

Dr Karl journeys across the spine of the Great Dividing Ridge in Australia plus other adventures in science.

The Naked Scientists take a look at how a mouse with a human immune system is helping treat HIV sufferers. Cancer that affects dogs and this weeks big question - why the journey home appears to be faster than the journey out?

Dr Chris, The Naked Scientist joins Rhod to answer all your science questions.

A new technique that makes the production of computer chips a piece of cake, the science of drumming and all of the week's other science news with Dr Chris.

Dr Chris keeps Dr Karl's chair warm and looks at why music affects us so much, why when you dunk biscuits in your tea the crumbs always stick to edge of the mug and why it gets windy whenever the sun goes behind the clouds.