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Dr Karl Podcast

triplej
Climate Change
Evolution
Alcohol
Science With Dr Karl Live
Consciousness
Black Holes
Artificial Intelligence
Global Warming
Ants
Mathematics
Rainbows
Nutrition
Human Body
Hormones
Bees
Hay Fever
Sustainability
NASA
Misinformation
Wind

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!

PublishesWeeklyEpisodes681Founded21 years ago
Number of ListenersCategory
Science

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Artwork for Dr Karl Podcast

Latest Episodes

Why is red light more environmentally friendly? Which science fiction is the most realistic about our present and future? And what triggers thirst versus hunger?

Dr Karl and Sci_Burst’s Ella and Isabel answer these questions and more on triple j Mor... more

What is the best kind of shade? Why are some rocks older than others? And is winter the dustiest season?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here ab.co/askKarl... more

Can we be profiled by the video games we play? Why does time fly when you're having fun? And what can gaming teach us about real-world science?

Dr Karl and Professor Marcus Carter answer these questions and more on triple j Mornings with Lucy Smith.... more

Should you depart from your favourite dish? How soon can we become superhumans? And where is the universe going?

Dr Karl answers these questions and more on triple j Mornings with Sam Lane. Got a question for Dr Karl - submit it here ab.co/a... more

Key Facts

Accepts Guests
Contact Information
Podcast Host
Number of Listeners
Find out how many people listen to this podcast per episode and each month.

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Recent Guests

Isabel Richards
Host of Cyburst Podcast
Cyburst Podcast
Episode: Pokémon, off-grid festivals and cannabinoids
Ella McCarthy
Host of Cyburst Podcast
Cyburst Podcast
Episode: Pokémon, off-grid festivals and cannabinoids
Marcus Carter
Professor of Human-Computer Interaction, University of Sydney
University of Sydney
Episode: Gamer brain, VR immersion and gacha gambling
Dr Xander
Guest expert introduced as Dr Xander
Science guest
Episode: Magic mushrooms, hiccup rhythms and meteorites
Dr Beans
Guest expert introduced as Dr Beans
Medical/ science communicator
Episode: Magic mushrooms, hiccup rhythms and meteorites
Dr Matt
Guest expert
3D technology/infrared imaging
Episode: Magic mushrooms, hiccup rhythms and meteorites
Dr Nate
Guest expert
Pain and neurology
Episode: Magic mushrooms, hiccup rhythms and meteorites
Dr Jacinta
Guest expert
OB/GYN (pregnancy)
Episode: Magic mushrooms, hiccup rhythms and meteorites
Dr Alec
Guest on the brain/nerve and physics discussion
unidentified
Episode: Peptide tans, brain charge and seeing in the dark

Hosts

Dr Karl Kruszelnicki
Host of science-focused shows with a long-running presence in Australian science communication.
Lucy Smith
Co-host introducing segments, guiding show flow, and presenting scientific explanations.

Reviews

4.7 out of 5 stars from 5k ratings
  • This show is kinda gross

    I hate this show pls whack yourself on the head thanks just kidding this this show is awesome so glad for your old existence.

    Apple Podcasts
    1
    brilliancthggnff
    Australiaa month ago
  • ❤️ u dr carl

    So grateful for your existence

    Apple Podcasts
    5
    Gyvgfeeeaqqaddzsedggjpo
    Australia2 months ago
  • Leo

    Love you Dr Karl

    Apple Podcasts
    5
    Fgsgsgb13(434
    Australia2 months ago
  • I love this show

    Hi my name is Lachie and I’m 14 years old and live in NSW, Australia. I discovered this show when I was about eleven or twelve and I could not get enough of it. Thank you so much for teaching me all those weird and wonderful things. To be honest you’ve probably taught me more than my teachers have. I’d recommend this show to anyone out there who’s curious and likes knowing random things. Thank you soooo much.

    Apple Podcasts
    5
    Lachie_Maxwell😝
    Australia2 months ago
  • Podcast

    Listen to your podcast every time I go on bike rods so much fun•

    Apple Podcasts
    5
    Tony and make
    Australia2 months ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Guests are described as credible and the science is made approachable.
Listeners praise accessible explanations and engaging energy from the hosts.
Audience values curious, family-friendly science content and practical demos.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts
#74
United Kingdom/Science
Spotify
#3
Australia/Science
Apple Podcasts
#211
Australia/Top Podcasts
Apple Podcasts
#5
Australia/Science
Apple Podcasts
#75
Indonesia/Science
Apple Podcasts
#78
South Africa/Science

Talking Points

Recent interactions between the hosts and their guests.

Gamer brain, VR immersion and gacha gambling
Q: What kind of questions can you answer for us today, Marcus?
Marcus explains he can discuss topics around video games, VR, and their applications in education, health, and social behavior, though not every answer will be perfect.
Shower farts, regenerative bodies and bass face
Q: What is consciousness, and can we ever fully understand it?
Consciousness remains a profoundly challenging topic; theories like the Girdle Escher Bach framework suggest there are fundamental limits to proving all aspects of knowledge, with consciousness being one of the trickier areas to fully grasp.
Shower farts, regenerative bodies and bass face
Q: Are there limits to how much the brain can store, like a hard drive?
The brain stores information through neural connections and patterns, not digital bits; estimates suggest a capacity in the range of several thousand terabytes for information storage when considering encoding and retrieval dynamics.
Shower farts, regenerative bodies and bass face
Q: Why do farts smell more in the shower?
Because the shower confines the space, clothing is not filtering the odor, air currents recirculate the scent back toward you, humidity makes smells stronger, and warmth enhances olfactory perception.
Dog breath, ugly cry face and sleeping pelicans
Q: Why do we make that resting facial expression when crying?
Tears, eyelid adjustments, and facial muscle tensions combine to create the resting facial expression and furrows seen during crying, tied to strong emotions.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
Gender Skew
Location
Interests
Professions
Age Range
Household Income
Social Media Reach

Frequently Asked Questions About Dr Karl Podcast

What is Dr Karl Podcast about and what kind of topics does it cover?

This science-focused show features a legendary Australian science communicator and a poised co-host guiding conversations with a rotating roster of experts. Episodes span everything from death studies and bioethics to AI safety, space exploration, and everyday physics, all explained with curiosity, humor, and accessible demos. Guests range from university researchers and industry engineers to science writers, while listener questions drive practical explanations of health, technology, and the cosmos. A notable strength is the strong emphasis on clear, relatable science communication and real-world applications, often tying complex topics to daily life or current events. The format—live Q&A, deep-dive interviews, and audience-driven tangents... more

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How many listeners does Dr Karl Podcast get?

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How many subscribers and views does Dr Karl Podcast have?

To see how many followers or subscribers Dr Karl Podcast has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.

Which podcasts are similar to Dr Karl Podcast?

These podcasts share a similar audience with Dr Karl Podcast:

1. Shirtloads of Science
2. What's That Rash?
3. The Science Show
4. Hack
5. What The Duck?!

How many episodes of Dr Karl Podcast are there?

Dr Karl Podcast launched 21 years ago and published 681 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact Dr Karl Podcast?

Our systems regularly scour the web to find email addresses and social media links for this podcast. We scanned the web and collated all of the contact information that we could find in our podcast database. But in the unlikely event that you can't find what you're looking for, our concierge service lets you request our research team to source better contacts for you.

Where can I see ratings and reviews for Dr Karl Podcast?

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What guests have appeared on Dr Karl Podcast?

Recent guests on Dr Karl Podcast include:

1. Isabel Richards
2. Ella McCarthy
3. Marcus Carter
4. Dr Xander
5. Dr Beans
6. Dr Matt
7. Dr Nate
8. Dr Jacinta

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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