
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

Sep 5, 2024 • 37min
Wind farms, hair growth and inherited fears
In this engaging discussion, Dr. Karl, a renowned scientific expert, teams up with Bec Charlwood, a host from triple j Mornings. They tackle fascinating questions like why Bluetooth speakers glitch when microwaves are in use and whether fears can be genetically inherited. The duo explores how human evolution might lead to another major transitional period and dives into the mysteries of leg hair growth. They also shed light on the connection between storms and bird behavior, debunking myths while intertwining science with humor.

Aug 29, 2024 • 40min
Spider silk, super human strength and wild winds
How small does an animal need to be to survive a great fall? Is it safe to reheat tea or coffee in the microwave? And how are magnets made? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Aug 22, 2024 • 38min
Fire ants, bees knees and metamorphic mush
Are we really eating spiders in our sleep? Do bees have knees? Why are cockroaches so resilient?Dr Karl, Dr. Robert Puckett and Jess Ward-Jones answer these questions and more on triple j Mornings with Lucy Smith.

Aug 15, 2024 • 39min
AI consciousness, hugging trees and deep fakes
Can AI rewrite its own software? How much water would we need to take to the moon to make it inhabitable? And are robots going to take our jobs?Dr Karl and special guest Dr Matt Agnew answer these questions and more on triple j Mornings with Lucy Smith.

Aug 8, 2024 • 40min
Olympic emotions, sourdough starters and dominant hands
Why are we seeing Olympic records in some sports but not others? Does cracking your fingers actually give you arthritis? And if someone ate a diet of only lavender, would their farts smell nice?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

Aug 1, 2024 • 40min
Exoplanets, slingshotting spacecrafts and the moon landing
Are there more planets than grains of sand on earth? Does food go mouldy in space? And have we started training astronauts to visit Mars? Dr Karl and special guest Katherine Bennell-Pegg answer these questions and more on triple j Mornings with Lucy Smith.

Jul 25, 2024 • 40min
Birth control, stem cell modification and the orgasm gap
Is urine sterile enough to clean a wound? Why do our noses run so much in the cold? And can you change your sex drive?Dr Karl and Dr Naomi Koh Belic answer these questions and more on triple j Mornings with Lucy Smith.

Jul 18, 2024 • 40min
Cremations vs. burials, walking sharks and consciousness
Special guest Zoe Kean discusses topics like water cremation, book cover art designs inspired by nature, environmentally friendly burial options, evolution of thumbs in animals, disappearing tarns, and eye color changes in adults with Dr. Karl.

Jul 11, 2024 • 41min
Cool burning, phantom vibrations and the other side
Dr Karl and Tiahni Adamson discuss surviving bushfires, AI beginnings, and climate change issues. They explore holistic healing approaches, chemical fire consequences, beanie rotations, phantom vibrations, Aboriginal connections with Thylacine, and coral reef restoration.

Jul 4, 2024 • 40min
Ageing brains, poo colour and conspiracy theories
Why does it become harder to learn things as we get older? If you injured yourself in space, would it hurt as much as it would on earth? And why does cheese taste better melted? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.