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Triple J Science Questions

Science with Dr Karl
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Next up on the Radio

  • Thursday 12th February 2026
    9:30 am - 10:00 am

    Dr Karl joins Rory McClaren on ABC Adelaide

  • Thursday 12th February 2026
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 12th February 2026
    2:30 pm - 3:00 pm

    Dr Karl joins Alice Matthews on ABC Canberra

  • Thursday 12th February 2026
    2:30 pm - 3:00 pm

    Dr Karl joins Jess Ong on ABC Darwin


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Uncategorized

Peeing on lemon trees, hereditary birth marks and yellow sunglasses

Why is it considered a good thing to urinate on lemon trees? Plus: can birth marks be hereditary?; and why do yellow sunglasses make daylight appear brighter?

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Snake bites, popcorn and nuclear devices

Why do we get dizzy when we get up really quickly? Why does hot water sound different to cold water when it comes out of the tap? Why do cold and flu symptoms always feel worse in the morning and at night?


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Protein powder, brain-freeze, carnivore diets

Is protein powder a waste of money? Do men poo more then women? Why does my fried keep getting brain-freeze? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith & special guest dietician Professor Clare Collins!

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Exploding stars, dark matter and meteor's

Can cats land on their feet in space? Why are planets round? What would happen to the earth if the sun moved closer?