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Next up on the Radio
Wednesday 25th February 2026
9:30 am - 10:00 amWednesday 25th February 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 25th February 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 26th February 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
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Bubbles, bushfires and back burning
Why do fires burn faster uphill rather than down? Can you cook a chicken by slapping it? What are the affects of bushfires on trees?
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Cement nails, beached whales and red hair changing colour
Does cement make your nails grow? Are the hiccups hereditary? Why is the sound of a plane flying so loud when you’re outside it, but quiet when you’re inside it? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
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Deep sea climate change, enviro bags, over-fishing
It’s a Marine Science Special! Professor Emma Johnson joins Dr Karl and Zan Rowe to help answer your ocean-based science questions.
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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?
