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Next up on the Radio
Wednesday 15th July 2026
9:30 am - 10:00 amWednesday 15th July 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 15th July 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 16th July 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
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Tongue flaps, pressure points and seal knees
Why do we need to pee when we get into water? How long would humans last on earth if the sun disappeared? Where do false memories come from?
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Allergies, time machines, and the meaning of 0
Dr. Karl answers all your science questions, including; is gravity stronger underground? Is raspberry cordial good for your gut? Which way do toilets flush on the equator?
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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 – kind of, and sometimes. As a cyclone moves away from the equator, it spins clockwise in the […]
