9:30 am - 10:00 am
View all
Next up on the Radio
Wednesday 18th February 2026
9:30 am - 10:00 amWednesday 18th February 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 19th February 2026
11:00 am - 12:00 pmDr Karl joins Lucy Smith on ABC Triple J Science Mornings
Thursday 19th February 2026
2:00 pm - 2:30 pmDr Karl joins Joel Rheinberger on ABC Hobart
Latest Books
View all
Recent Articles & Stories
View all
Australian Geographic The fate of our first submarine
Dr Karl tells the story of Australia’s first submarine in World War One, the AE2. ON 31 DECEMBER, 1914, AE2 Australia’s only submarine (AE1 had been lost at sea off New Guinea two months earlier), sailed from Australia towards the Dardanelles. The plan was to trailblaze a path for the Allied fleet into the inland […]
Uncategorized
Hand washing, active cases, hot chooks
How long does an asymptomatic person stay asymptomatic? Should we be worried about the fumes from hand sanitizer? How long can I eat my hot chicken leftovers for? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Science reporter Olivia Willis from ABC News.
Uncategorized
Cement nails, beached whales and red hair changing colour
Does cement make your nails grow? Are the hiccups hereditary? Why is the sound of a plane flying so loud when you’re outside it, but quiet when you’re inside it? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.
Uncategorized
Farting, space messages and disappearing tastebuds
How much farting would kill someone? Has anyone replied to our space messages? Will my tastebuds disappear if i keep cutting off my tongue ulcers?
