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Dr Karl Podcast

Latest episodes

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Dec 12, 2024 • 41min

Vitamin D, pesky flies and psychosis explained

Does your blood type impact your dietary requirements? Is blue green algae safe to swim in? And why are there so many cicadas around this year? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 
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Dec 5, 2024 • 42min

Doppler effect, the smell of rain and water intoxication

Discover the science behind hearing the ocean in a seashell and why your ears pop during car rides. Learn about the fascinating relationship between water consumption and hydration. Delve into the emotional impact of music and the phenomenon of goosebumps. Uncover the mysteries of sound dynamics and the Doppler effect. Explore the genetics of dingoes and their connection to dogs, along with the intriguing concept of 'food noise.' Prepare for insights on energy conservation and the role of music in evoking memories.
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Nov 28, 2024 • 39min

Ozempic, plant protein and food noise

Does intermittent fasting affect your metabolism? Why do you feel nerves in your gut? And could hay fever reignite food allergies?Dr Karl and special guest Dr Clare Collins answer these questions and more on triple j Mornings with Lucy Smith. 
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Nov 21, 2024 • 39min

Sperm competition, ring of fire and the late heavy bombardment 

Why do we have eyebrows? Is there a way to predict the future of evolution in humans? And what would our doctors ask Charles Darwin at a dinner party? Dr Karl and special guest Zoe Kean answer these questions and more on triple j Mornings with Lucy Smith. 
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Nov 14, 2024 • 41min

UV ratings, anxious sweats and morning people

Explore the quirky physics of how dogs shake off water and its links to skin sensitivity. Discover the unsolved mysteries behind anxiety-induced sweating and the surprising science of flatulence smells in the shower. Tune into the unique relationship between music and plant growth, including a plant serenaded by an orchestra. Delve into the challenges of UV radiation and personal sunburn tales, alongside the secrets of snakes staying clean in dirty environments. Engaging listener questions and humor make for a delightful scientific journey.
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Nov 7, 2024 • 36min

Terraforming Mars, intergalactic travel and the Perseverance Rover

What impact would living on Mars have on our bodies? Could we ever have 'Earth' on our identification? And how are the astronauts stuck on the International Space Station going?Dr Karl and special guest Dr Adrian Brown answer these questions and more on triple j Mornings with Lucy Smith. 
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8 snips
Oct 31, 2024 • 42min

String theory, Benford's Law and the discovery of Pi

Matt Parker, a mathematician and engaging YouTuber known for his bestselling book "Love Triangle," dives into captivating discussions on whether math is invented or discovered. He explores the intriguing Benford's Law and its role in spotting tax fraud. The chat also unpacks string theory with squid analogies and the impact of microplastics, highlighting innovative mathematical solutions. Finally, Parker delves into the significance of Pi and how time dilation reveals cosmic mysteries, blending humor and deep insights into the mathematical universe.
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Oct 24, 2024 • 41min

Breath work, species adaptations and peak solar energy

How realistic are shark attacks in movies? Why are there no monkeys in Australia? And how important are breathing exercises? Science communicators Zoe Kean and Ruben Meerman answer these questions and more on triple j Mornings with Lucy Smith. 
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Oct 17, 2024 • 42min

Shark repellants, going grey and the sixth sense

Zoe Kean, a Tasmanian science communicator and author, teams up with Ruben Meerman, the 'surfing scientist' known for his physics expertise, to explore fascinating scientific concepts. They discuss the effectiveness of shark repellents for surfers and whether humans might evolve cancer immunity. The duo also dives into the intriguing nature of shadows and the reasons for premature greying, incorporating engaging personal stories and insights on wildlife. A lively conversation that balances humor with thought-provoking science!
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Oct 10, 2024 • 40min

Hurricane Milton, the shadow biosphere and preventing CTE

Why do some people have a higher caffeine tolerance? How common is shingles in people under the age of 30? And why don’t any mammals have green fur? Dr Karl answers these questions and more on triple j Mornings with Jordan Barr. 

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