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Next up on the Radio
Wednesday 11th March 2026
9:30 am - 10:00 amWednesday 11th March 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 11th March 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 12th March 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
Latest Books
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Recent Articles & Stories
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Australian Geographic The fate of our first submarine
Dr Karl tells the story of Australia’s first submarine in World War One, the AE2. ON 31 DECEMBER, 1914, AE2 Australia’s only submarine (AE1 had been lost at sea off New Guinea two months earlier), sailed from Australia towards the Dardanelles. The plan was to trailblaze a path for the Allied fleet into the inland […]
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Farting, space messages and disappearing tastebuds
How much farting would kill someone? Has anyone replied to our space messages? Will my tastebuds disappear if i keep cutting off my tongue ulcers?
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Heart beats, sex withdrawals and itchy thighs
Is there a set amount of water on planet earth? Why do I get itchy thighs when I exercise? What goes on inside your body when your heart ‘beats out of your chest’? Can a loud noise impact the hearing of an unborn child? How long can you go without sex?
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 […]
