2:30 pm - 3:00 pm
View all
Next up on the Radio
Thursday 22nd October 2026
2:30 pm - 3:00 pmThursday 22nd October 2026
2:30 pm - 3:00 pmDr Karl joins Jess Ong on ABC Darwin
Thursday 22nd October 2026
3:30 pm - 4:00 pmDr Karl joins Prue Bentley on ABC Regional Victoria
Wednesday 28th October 2026
9:30 am - 10:00 amDr Karl joins Sarah Cumming on ABC Gold Coast
Wednesday 28th October 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Latest Books
View all
Recent Articles & Stories
View all
Uncategorized
Itchy ankles, swelling cheeks and bellybutton fluff
Why do some people get itchy legs when they exercise? Plus: what causes some people’s cheeks to swell and tingle while eating cheese? And why is bellybutton fluff always blue?
Uncategorized
Vaccines, receipts, 5G
Can you be immune to COVID-19? Can it live on receipt paper? How do you test a vaccine? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Olivia Willis from ABC News.
Uncategorized
Hungry sneezing, remarkable redheads and the Tay Tay debate
What would happen if the whole world farted at once? Why do we hear our own voice differently to how others hear us? Can you scare someone better?
Uncategorized
Rollercoasters, plasma & wormholes
Dr. Karl answers all your science questions, including; what do flies want? How do bullets kill people? Why does dog poo turn white?
