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Next up on the Radio
Wednesday 11th February 2026
9:30 am - 10:00 amWednesday 11th February 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 11th February 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 12th February 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
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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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Sand, facial hair & neuroplasticity
Dr. Karl answers all your science questions, including; do stressful dreams affect sleep quality? Are there really morning and night people? Why do periods synch?
National Geographic Kids Running on Time
Time with Dr Karl Time to think… If you look at nature, you will find a few naturally occurring timekeepers. For example, the sun dictates the length of one day – approximately 24 hours from sunrise to sunrise. But if you want to measure shorter periods of time, you need to use a clock. Water […]
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Exploding crockery, furry male allergies and female ejaculation test results
Why does crockery seem to randomly explode? Plus: Is it possible to be allergic to only male furry animals?; and a caller reports the results of his and his partner’s female ejaculation tests.
