Dr Karl Podcast

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!

Episodes

October 15, 2025 40 mins

Do ants outweigh humans? Are we getting any more water on Earth? And why do dreams leave us on cliffhangers?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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What would happen to the universe if we could time travel? How fast does the earth move? And at what point does our brain switch from awake to asleep?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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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. 

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September 24, 2025 42 mins

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. 

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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. 

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September 10, 2025 39 mins

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. 

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It turns out, you have A LOT of science (and not-science) questions for Dr. Karl - and he's going to answer them!

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September 3, 2025 39 mins

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.

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It turns out, you have A LOT of science (and not-science) questions for Dr. Karl - and he's going to answer them!

Mark as Played

What would happen if we all jumped at once? Is there anything a black hole can't swallow? And what cooks faster, baked or boiled sweet potato?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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Whether you listen on the radio every Thursday, on YouTube or from your podcast feed, we've taken the show you know and love and brought it to the live stage!

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Why does saliva assist suction (get your head outta the gutter!)? Can our eyes really change colour? And which planet would host the best for gigs?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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Whether you listen on the radio every Thursday, on YouTube or from your podcast feed, we've taken the show you know and love and brought it to the live stage!

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What's on the other side of a black hole? How hot does 'hot' go? And seriously, what came first: the chicken or the egg?

Dr Karl and Krystal De Napoli answer these questions and more on triple j Mornings with Lucy Smith during National Science Week.

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August 8, 2025 1 min

Dr. Karl is jumping into your feeds with a very important message!

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Why is gossip so irresistible? Which is faster between heating and cooling? And do we need to prepare for aliens this November?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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How old is space? Why do we need sleep? And what determines our poop schedule?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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July 23, 2025 39 mins

Was there rain during the ice age? Why do back scratches feel so good? And how does Dr. Karl start his day?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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Is dirt as dirty as it seems? What's the purpose of a virus? And is Australia apocalypse-ready?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

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How do First Nations teachings inform modern-day science? Do animals love the same way humans do? And how do spiders find their way home?

Dr Karl, Corey Tutt and Tiahni Adamson answer these questions and more for this NAIDOC Week special of Science Hour on triple j Mornings with Lucy Smith. 

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