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Next up on the Radio
Wednesday 12th August 2026
9:30 am - 10:00 amWednesday 12th August 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 12th August 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 13th August 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
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Electric shocks, bloody noses, sleep sneezing
Why does earwax taste bitter but snot doesn’t? Can Wi-Fi be harmful? If we were to replicate the big bang, how would we contain it?
National Geographic Kids I Can See A Rainbow!
Dr Karl explores the magic of a rainbow. We love a good rainbow. But did you know that not all look the same? Some can be brilliantly bright and colourful and some can appear faint or dull. So when can you see the best ones? The clearest appear when the sun is shining brightly behind […]
Uncategorized
Snake bites, popcorn and nuclear devices
Why do we get dizzy when we get up really quickly? Why does hot water sound different to cold water when it comes out of the tap? Why do cold and flu symptoms always feel worse in the morning and at night?
Uncategorized
calories, catchy songs, sweat
Why do we feel like vomiting after rigorous exercise? Does distance or speed burn more calories? Plus, the movement of air pollution.
