Dr Karl
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Science with Dr Karl
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Next up on the Radio

  • Wednesday 11th March 2026
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 11th March 2026
    10:30 am - 11:00 am

    Dr Karl joins Susan Graham-Ryan on ABC Townsville

  • Wednesday 11th March 2026
    7:00 pm - 7:30 pm

    Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland

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

    Dr Karl joins Rory McClaren on ABC Adelaide


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Australian Geographic

Which way does water go down a drain?

Dr Karl investigates if water really drains anti-clockwise in the Northern Hemisphere and clockwise Down Under. DOES WATER EMPTY down a drain hole anti-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere? The answer is โ€“ kind of, and sometimes. As a cyclone moves away from the equator, it spins clockwise in the […]

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Farmer's tales, shaved-head hair, and quantum physics and God

What happens when fruit and vegetables cross-pollinate? Why does my hair appear to grow quicker now I shave my head? Does quantum physics imply the existence of a God?


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Sand, facial hair & neuroplasticity

Dr. Karl answers all your science questions, including; do stressful dreams affect sleep quality? Are there really morning and night people? Why do periods synch?

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Sympathy spews, chubby rain and full-moon craziness

Could you make off milk drinkable by boiling it? Are you heavier after taking a shower? Can computer viruses become real life viruses?