Dr Karl
Dr Karl on TikTok!
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Triple J Science with Dr Karl

Triple J Science with Dr Karl
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Next up on the Radio

  • Wednesday 22nd July 2026
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 22nd July 2026
    7:00 pm - 7:30 pm

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

  • Thursday 23rd July 2026
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 23rd July 2026
    2:00 pm - 2:30 pm

    Dr Karl joins Joel Rheinberger on ABC Hobart


Latest Books

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Recent Articles & Stories

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Workout music and rumbling stomachs

Why do some people work harder at the gym when they listen to a favourite tune? Plus: why does your stomach rumble when you are hungry? And why do your hands tingle after an orgasm?

Australian Geographic

Australian breakthroughs: dark energy

Dr Karl outlines what we do and don’t know about the mysteriously named dark energy, which makes up around 70 per cent of the entire universe. THE LATEST AUSTRALIAN discovery that impresses the heck out of me is really, really weird. We can’t see it or touch it – and yet, it makes up about […]


Uncategorized

Apple burps, dogs on the phone, the munchies

Why do you get hungry when you smoke marijuana? Why cant my dog hear my voice over the phone? Why do I burp after I eat an apple.

Uncategorized

Red beard hairs, living underwater and movies on airplanes

Why do I sweat more on one side? Can smart watches cause cancer? Why is it easier to see when squinting? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.