9:30 am - 10:00 am
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Next up on the Radio
Wednesday 28th October 2026
9:30 am - 10:00 amWednesday 28th October 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 29th October 2026
11:00 am - 12:00 pmDr Karl joins Lucy Smith on ABC Triple J Science Mornings
Thursday 29th October 2026
2:00 pm - 2:30 pmDr Karl joins Joel Rheinberger on ABC Hobart
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Uncategorized
Floating tips, sound in space & aburpia
Why do we float horizontally in water? Why do some adults develop anaphylaxis? Is soda water good for you?
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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?
National Geographic Kids What is a Sinkhole?
Dr Karl digs deep into sinkhole science A sinkhole is a void in the ground caused by a collapse of the Earth’s surface layer. This usually occurs when the ‘stuff’ underground – limestone and gypsum – dissolves or shifts as a result of lots of moving water in one area. Heavy localised rainfall or large […]
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Upset apples, brain capacity and caffeine sickness
Why does a bruised apple taste differently to an unbruised one? Plus: is it possible to evaluate the capacity of the brain in gigabytes? And why does caffeine make you feel sick in the stomach?
