
Dr Karl Podcast
Join Dr Karl Kruszelnicki, Lucy Smith and their scientific guests, with a bunch of curious triple j listeners for a weekly injection of science, myth-bashing and answers!
Latest episodes

Apr 17, 2025 • 38min
Alien planets, sea sickness 101 and the perfect chocolate
Is it possible to breathe through our ears? Why do we always queue in a snake form? And what's hiding in the rest of the ocean? Dr Karl answers these questions and more on triple j Mornings with Jaimee Taylor-Nielsen

Apr 10, 2025 • 40min
Jet lag, dire wolves and scented farts
What if the Moon was larger than Earth? Explore the intriguing impact of jet lag on our bodies and ways to ease its effects. Discover the fascinating relationship between bees and timber while diving into the science of scents and memories. Learn the secrets behind making sandpaper and the mysteries of glue drying in space. Plus, ponder the possibilities of resurrecting extinct species like dire wolves. Packed with humor and scientific insights, this discussion is a delightful blend of curiosity and knowledge.

Apr 3, 2025 • 43min
Crime scenes, sweat logic and fighting misinformation
Do cortisol detoxes work? Can our bodies predict rain with pain? And is this Halsey lyric - ‘the father's DNA stays inside the mother for 7 years’ - scientifically accurate?Bianca Nogrady and Dr Theresa Larkin answer these questions and more on triple j Mornings with Lucy Smith.

Mar 27, 2025 • 41min
Cloud seeding, endorphins and heartstrings
Do animals have different blood types? How was the earth's core created? And back to basics - why is the sky blue?Bianca Nogrady answers these questions and more on triple j Mornings with Lucy Smith.

Mar 20, 2025 • 41min
The ethics of genetics, teleporting earthworms and perfect naps
Why are we so helpless as babies? Are cats targeting people with allergies? And if we could bring back dinosaurs, would they survive?Zoe Kean answers these questions and more on triple j Mornings with Lucy Smith.

Mar 13, 2025 • 40min
Heterochromia, cold water therapy and time of death
Bianca Nogrady, a scientist and insightful communicator, fills in for Dr. Karl Kruszelnicki and tackles fascinating topics. She explores why trees are less prone to cancer than humans and discusses heterochromia, shedding light on its harmlessness and implications for evolution. The conversation heats up with a dive into how cold water therapy could influence health practices and ends with a thought-provoking debate about the ethical implications of artificial hearts on our definition of death. Plus, there's an alarming look at rising sea levels affecting Tasmania.

Mar 6, 2025 • 41min
Patternicity, lemon tree wees and static electricity
Where is wind going? Are ants able to predict rain? And why do sportspeople train at higher altitudes?Bianca Nogrady answers these questions and more on triple j Mornings with Lucy Smith.

Feb 27, 2025 • 40min
Taste vs. smell, doomscrolling and insulated drink bottles
Why does the contraceptive pill affect your dreams? Can your pet watch you weld? And is there a science behind the tension shifting in a room?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Feb 20, 2025 • 43min
Beached whales, earworms and the 'city killer' asteroid
What are the most effective ways to decrease exposure to microplastics? Is there a link between planet alignment and weather patterns? And what would happen if an asteroid hit the earth?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Feb 13, 2025 • 41min
Panic attacks, dark matter and melting ice creams
What could the next step in human evolution look like? Discover how bees choose their flowers and the quirky ways memory can affect us. Learn about the science behind ice cream melting quickly and the significance of storytelling. Dive into the mysteries of light from distant galaxies and the vital link between panic attacks and heart health. Plus, explore the surprising onset of bee allergies and the complexities of immune responses to allergens.
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