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Science with Dr Karl
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Next up on the Radio

  • Wednesday 25th February 2026
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 25th February 2026
    10:30 am - 11:00 am

    Dr Karl joins Susan Graham-Ryan on ABC Townsville

  • Wednesday 25th February 2026
    7:00 pm - 7:30 pm

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

  • Thursday 26th February 2026
    9:30 am - 10:00 am

    Dr Karl joins Rory McClaren on ABC Adelaide


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Uncategorized

Coconut oil, inhaling smoke, tiredness

Coconut oil, inhaling smoke and why you might feel tired when you’re doing nothing?

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The perfect hot chocolate, body hair length, snorting

How do you make the perfect hot chocolate? Does snorting things destroy your sense of smell? What are the particles of atoms made of?


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Cannabis use and psychosis, with Dr Matthew Large

In a special triplej listener talkback, Zan Rowe and Dr Karl discuss the link between mental illness and marijuana use with psychiatrist Dr Matthew Large, from the University of New South Wales.

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 […]