Episodes

  • Why should you cook at different temperatures in fan ovens?

    Why should you cook at different temperatures in fan ovens?
    Dec 20 2024
    Dr Chris takes on the final batch of questions of 2024 on CapeTalk. Why does sound cause me pain? What's the difference between white and brown vinegar? Does radioactivity harm inorganic matter? Is there a cure for anosmia (inability to smell)?What's outside our universe? Do we pass out on rollercoasters? How can we recognise our own baby's cry so well? Like this podcast? Please help us by supporting the Naked Scientists
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    24 mins
  • What colour should I paint my garage roof?

    What colour should I paint my garage roof?
    Dec 6 2024
    Chris Smith answers CapeTalk listeners' questions. Including, do wind turbines affect the temperature of the ground? What is the cause of protein build up in my eye? Can we predict how much we might shrink as we age? And does microwaving food affect its nutritional content? Like this podcast? Please help us by supporting the Naked Scientists
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    18 mins
  • Why does toothpaste contain fluoride?

    Why does toothpaste contain fluoride?
    Nov 29 2024
    Dr Chris Smith takes on listener questions on South Africa's CapeTalk. Why is there a delay between live TV and radio? Do wind turbines warm the air at ground level? Do we need to decommission the ISS? What causes genital warts? Like this podcast? Please help us by supporting the Naked Scientists
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    21 mins
  • Why is sunlight so important for the body?

    Why is sunlight so important for the body?
    Nov 22 2024
    Why are we called The Naked Scientists? Why should you get sunlight in the morning? Why does bright light make you sneeze? Does luck have a pattern? Is there really such thing as bad luck? Do people who don't get sunlight have more health problems? Did our skin colour change because of agricultural reasons? Dr Chris Smith and Clarence Ford have all the answers... Like this podcast? Please help us by supporting the Naked Scientists
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    18 mins
  • Has it been a strange year for weather?

    Has it been a strange year for weather?
    Nov 15 2024
    Dr Chris Smith answers questions from the listeners of CapeTalk. Including, why are pregnant women told to take folic acid? What causes ears to itch? Why is vomit yellow? Is there a relationship between organs of the body and areas of the skin? How effective is carbon dating? Like this podcast? Please help us by supporting the Naked Scientists
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    19 mins
  • Why do athletes spit on the ground?

    Why do athletes spit on the ground?
    Nov 8 2024
    Dr Chris and Clarence take on another selection of topics from across the scientific spectrum: Who were the victims of the Mount Vesuvius eruption? How does one get rid of ringworm? What are the effects of a low heart rate? If our internal body temperature is 37 degrees, why do we feel warm when it's 35 degrees outside? What is an eating disorder? Can an element in the periodic table be changed into another? Like this podcast? Please help us by supporting the Naked Scientists
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    23 mins
  • What should you do if a lift cable snaps?

    What should you do if a lift cable snaps?
    Nov 1 2024
    Do animals lower their mating standards when drunk? Why do different farts make different noises? What should you do if your lift cable snaps? Were there two Earths at one point? Where do mosquitoes go during the day? Is tinnitus always a ringing sound? Is Teflon safe to use? Is there such thing as a universal frame of reference? Dr Chris Smith and Clarence Ford have all the answers... Like this podcast? Please help us by supporting the Naked Scientists
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    22 mins
  • Do other animals see colour?

    Do other animals see colour?
    Oct 25 2024
    In this episode of Ask! The Naked Scientist, Dr Chris explains how our eyesight changes as we age, what the difference is between a brown and white egg shell, and the growing threat of antimicrobial resistance... Like this podcast? Please help us by supporting the Naked Scientists
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    19 mins