What's the science behind itching and scratching?
Are there technologies to remove smoke taint in wine affected by recent wildfires? What's the science behind itching? Can a tortoise survive...
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Science & Medicine
Ask the Naked Scientists
How many organs could you donate and remain alive? How many planet Earths could fit inside the Sun? How high is a giraffe's blood pressure? Why is the sea blue? To find out, Ask The Naked Sc...
Ask the Naked Scientists Podcast Guide
Listen to Ask the Naked Scientists, a Science & Medicine podcast by Dr Chris Smith. Stream 799 episodes in English, follow new audio stories, and play episodes online on Radio and Podcast.
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Episodes
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Why a helium balloon flies backwards when you hit the brakes
How can algae microbots deliver drugs for bladder cancer? Why does a helium balloon fly backwards when you hit the brakes in a car? Does the...
Why do wombats have cube-shaped poo?
Dr Chris Smith and Clarence Ford return to answer your questions. Why do wombats produce cube-shaped droppings? Does sleeping position affec...
What happens before we have a thought?
What is the impact of being a child in a home where a sibling has a chronic medical condition? What happens before we have a thought? How ba...
Is it safe to eat dropped food?
Do our digital lives leave us cognitively exhausted? Should we see a doctor when we are overly tired? How bad are processed foods for us? Is...
Why did the Lincoln Memorial Reflecting Pool turn green?
Why is Europe experiencing a heatwave? What happens if a being from a different dimension enters our dimension? Why are wombats able to prod...
How do cats sustain a purr-fect purr?
Why does our hair stand up when we are scared? Does the animal kingdom experience colour differently? How do cats purr without running out o...
Are there sounds around us that we can't hear?
What's the impact of sodium on our heart health? Are there sounds around us that we can't hear? Why do teeth have nerves and a blood supply?...
Why does a slice of toast land butter side down?
Do dolphins and whales yawn? Is yawning contagious in animals? What progress has been made on brain chip implants? What is the difference be...
How does a headache tablet know where it hurts?
Does water boiled in a microwave oven taste different from kettle-heated water? How long does it take the body to absorb a drink of water? D...
Why does running water make us want to use the toilet?
Why does running water make us want to go to the bathroom? What is IQ, and can you improve it? What is a Pica craving? Why isn't sperm damag...
Should we pay attention to the UFO files?
Do the newly released UFO files matter? Why do people tend to live longer in the 21st century? Why do women live longer than men on average?...
Can we travel forward and backwards in time?
Is time a physical thing? How do trees know what season it is? What causes different-sized tides? Can cannibalism cause brain disease? Do al...
How do vultures find their prey?
Why are humans so sensitive to the smell of rain? Do statins cause dementia? What is the storage capacity of the human brain? How can I reme...
Why don't melting ice cubes make my drink overflow?
How does polio cause disease? Why does ice added to a drink not make the glass overflow when the ice melts? What's the point of the appendix...
Do dogs dream?
Do dogs dream? Can someone who was born blind dream? Do animals have souls? Do certain eye colours have more advantages than others in terms...
What caused the craters on the Moon?
How does the heat shield protect the Artemis II astronauts on their return to Earth? What caused the craters on the Moon? Can the materials...
What colour is a mirror?
Why some people can't say their Rs; why is perception of time so context dependent; what's the nutritional value of long life milk; what det...
Do we all see colours the same way?
On this week's show, why dogs don't live as long as humans. Also, why do we feel cold when our skin is warm to the touch? Do we all see colo...
Can white skin transplanted to a black person change colour?
This week Clarence Ford and Dr Chris discuss NASA's DART mission to defect an asteroid, why we can't tickle ourselves, whether lung capacity...