

Dr Karl Podcast
triple j
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!
Episodes
Mentioned books

Oct 2, 2025 • 43min
The science of cringe, meat juice & psychedelic shrimp
Will trees adapt to climate change? What causes migraine auras? And what happens in your body when you quit vaping?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Sep 25, 2025 • 42min
Fibre, the carnivore diet & drunk hamsters
How does boiling water affect tea? What is the instant smell from a packet of salt and vinegar chips? And how do carbohydrates and protein interact in our digestive system?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Sep 18, 2025 • 39min
Smelly sneezes, stress seizures & sound proofing
What's the correlation between black holes and time travel? Do batteries weigh less when they are empty? Why do some people develop indigestion later in life?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Sep 11, 2025 • 39min
Wee-Lemons, Life On Mars & Moon Balloons
Should you really be weeing on your lemon tree? How close are we to finding proof of life on Mars? And what would happen to a helium balloon in zero gravity?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Sep 10, 2025 • 19min
BONUS: Parmigianas, shopaholics and small talk
It turns out, you have A LOT of science (and not-science) questions for Dr. Karl - and he's going to answer them!

Sep 4, 2025 • 39min
Hypnotism, Sunscreen and Simulation Theory
What is the science behind Deja-Vu? Do we all see the same colours? Does cotton cause indigestion?Dr Karl answers these questions and more on triple j Mornings with Jaimee Taylor-Nielsen.

Sep 3, 2025 • 27min
BONUS: Life on Mars, bum cracks and the power of optimism
It turns out, you have A LOT of science (and not-science) questions for Dr. Karl - and he's going to answer them!

Aug 28, 2025 • 42min
Changing seasons, vape smoke and heat cream vs. hand lotion
What would happen if everyone jumped at once? Dr. Karl addresses this along with black holes and the mysteries of peeling boiled eggs. Discover how changing seasons affect our biology, including skin pigmentation and freckles. The podcast dives into ants and their attraction to electricity, linking their behavior to electromagnetic sensitivity. Culinary debates heat up as cooking methods for sweet potatoes are compared. And stay tuned for insights on why dogs love that wind-blown feeling while riding in cars!

Aug 23, 2025 • 39min
Science with Dr. Karl LIVE - Hosted by Lucy Smith: Part Two!
Join the lively discussion as humor and science collide! Explore the romantic science behind fogging car windows and the playful physics of movement and sound. Delve into the mysterious 'brown note' and ponder the possibilities of teleportation. Discover the explosive reactivity of sodium and the quirks of fiber shedding in clothing. Enjoy personal anecdotes sprinkled with humor while reflecting on urban myths and the triumphs of live science events. This is a delightful blend of knowledge and laughter!

Aug 21, 2025 • 41min
Manifestation, earthquakes and sun sneezes
Discover the science behind why saliva enhances suction. Learn how different planets might impact live music performances. Dive into the peculiar phenomenon where sunlight makes some people sneeze, and explore the genetics behind it. Hear fascinating insights on the extreme rainfall linked to climate change in Australia. Plus, find out why Tasmanian food is often deemed superior, tying in personal anecdotes with scientific reasoning. This lively discussion mixes quirky facts with serious scientific exploration, guaranteed to entertain and inform!