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Next up on the Radio
Wednesday 18th March 2026
9:30 am - 10:00 amWednesday 18th March 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 19th March 2026
11:00 am - 12:00 pmDr Karl joins Lucy Smith on ABC Triple J Science Mornings
Thursday 19th March 2026
2:00 pm - 2:30 pmDr Karl joins Joel Rheinberger on ABC Hobart
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Recent Articles & Stories
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Australian Geographic Could cows produce strawberry-flavoured milk?
WE KNOW THAT human breast milk can be flavoured by what the mother eats, and the same holds for cow’s milk. So can cows produce strawberry-flavoured milk? One study involved 18 nursing human mothers eating capsules of concentrated flavour. Within hours, the babies were enjoying flavoured milk from their mother’s breasts. The time varied for […]
National Geographic Kids How Much Does a Cloud Weigh?
A cloud is made up of many, many tiny ‘clumps’ of water, either liquid or frozen. The liquid droplets are about 0.002mm across – smaller than the thickness of a human hair. Some of these tiny droplets are so small that it would take a million of them to make a single raindrop! Different clouds […]
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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?
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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.
