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Next up on the Radio
Wednesday 23rd September 2026
9:30 am - 10:00 amWednesday 23rd September 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 23rd September 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 24th September 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
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Soft copper, blue tyres and compression pants
Can copper pipes be made hard again after they have been overheated then cooled? Why do new tyres sometimes leave a blue mark on the ground? Do sports compression shorts work?
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Clitoris, mosquitos, genetics
How much information can your brain hold? How do genetics work and does the clitoris have multiple purposes?
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Farmer's tales, shaved-head hair, and quantum physics and God
What happens when fruit and vegetables cross-pollinate? Why does my hair appear to grow quicker now I shave my head? Does quantum physics imply the existence of a God?
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Space special with NASA astronaut Dr Gregory Chamitoff
What’s it like to live in space for 183 days? NASA astronaut Dr Gregory Chamitoff joins Dr Karl to answer all your space questions.
