Would a baby exposed to 5 languages from birth learn all of them? Toilet bleach: what's best, thick or thin? Are new varieties of fruits equally good for you? What's the proof for absolute zero? How are radio and TV audiences measured? What causes high pitched sounds in the ear that appear to come from nowhere? Join Chris Smith and Kieno Kammies for the answers... Like this podcast? Please help us by supporting the Naked Scientists

How do different tasks recruit different parts of the brain? What's the story of potential life on Venus? How long to boil the perfect egg? What's homocysteine and how much is a safe level in the blood? How does alcohol in hand sanitiser work? What's the most intelligent animal? Are smartphones changing our brains? And does same sex attraction occur in wild animals as well as humans? Join Dr Chris Smith and Kieno Kammies for the answers... Like this podcast? Please help us by supporting the Naked Scientists

What causes new infections, like Covid-19, to emerge in the first place? Why does the same temperature seem to feel colder in the day than it does at night? Why have we locked down the world for Covid-19 when it seems less serious than we first thought? We also talk about the symptoms of long-Covid, and explain how the heart formed back in evolutionary history, with Dr Chris Smith and 567 CapeTalk's Kieno Kammies... Like this podcast? Please help us by supporting the Naked Scientists

Why does sugar get onion smells off my skin? Are aluminium cooking pots harmful to health? Why don't hail stones make holes in leaves? What causes heart palpitations? If we all went swimming at the same time, by how much would the sea level rise? Why are covid swabs so long? How are fibre optic data transmission rates so high? Why can I hear my own heart in my ears? Join Dr Chris Smith and 567 CapeTalks Koketso Sachane to find out... Like this podcast? Please help us by supporting the Naked Scientists

At what temperature does the new coronavirus survive the best? Is there a tension between science and religion? Are food additives harmful? Why is covid aysymptomatic in some people, and when are we infectious? Where does the Earth stop and space begin, and do we switch off our sensation when we go to sleep? Dr Chris and Talk Radio 702's Azania Mosaka have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Join Dr Chris and 567 CapeTalk's Kieno Kammies to hear why certain sounds make us shudder, whether you should sunbathe in winter, why Donald Trump is orange, what makes a crescent moon, why animals can eat venomous snakes and not be poisoned, the evidence that we really went to the moon, how is electricity made, and what is the best way to manage insomnia? Like this podcast? Please help us by supporting the Naked Scientists

This week climate records and snow in Australia. We also explain why reflections in a spoon are upside down? Would an astronaut adrift in space be fried, frozen, or both? How did the guy who invented a clock know the time? What links the ABCC11 gene and earwax? Why do only certain species look after their young? Is a vegan diet healthy for a growing child? And what are the bright silver sparkles when looking at a bright blue sky? Join Dr Chris Smith and Talk Radio 702's Azania Mosaka... Like this podcast? Please help us by supporting the Naked Scientists

How do induction loops in the road control traffic lights? Are there any health threats from 5G masts? Why do we yawn and why are yawns infectious? What guided ancient civilisations when they built landmark structures? What is tinnitus and can we treat it? Do birds fly in the rain? And what causes tennis elbow and how do I treat it? Join Dr Chris Smith on 567 CapeTalk for the answers! Like this podcast? Please help us by supporting the Naked Scientists

What's happening when your arm or leg goes to sleep? What is the odds that ET exists elsewhere in the Universe? Is there a "right" way to sleep? What makes eyelids twitch? What is the D614G strain of Covid-19, and is it a threat? Why do children sleepwalk? Is space mining a realistic prospect? And why might a man's resting pulse rate be lower than a woman's? Dr Chris Smith joins Azania Mosaka to answer your questions on Talk Radio 702... Like this podcast? Please help us by supporting the Naked Scientists

Why we love music, the reason that standing on one leg becomes a challenge with age, how bacteria and viruses become drug resistant, how plants swap chemicals underground, how old is ancient starlight, and why does Venus appear to rise so rapidly on the horizon? Join Dr Chris Smith on 567 CapeTalk to find out... Like this podcast? Please help us by supporting the Naked Scientists