Dr Karl Kruszelnicki

Shirtloads of Science

Science EN ↓ 467 episodes

Dr Karl's a curious optimist – a great combination for a science lover. Join him and his guests for weird facts, amazing conversation and remember, it's never too late for a happy childhood. Series Producer: Isabelle BentonTechnical Producer: Maya Cook

Author

Dr Karl Kruszelnicki

Category

Science

Latest episode

Jul 4, 2026

Where to listen?

Podcasts in the app Replaio Radio Coming soon

Podcasts are coming to the app soon. Install now and be the first to see a whole new take on podcasts

Get it on Google Play Install for free Android 5M+ downloads · 4.8 rating iOS soon

Episodes

New Covid Vaccines with Dr Steain (308) 25.09.2022

Could 2023 be the year we stopped the Covid ? Dr Karl meets a Sydney virologist working on this mission. Dr Megan Steain gives a viral history of the past three years and an outline of her project to develop better vaccines.   drkarl.com @m_steain

Space Comms with Dr. Badri Younes (307) 18.09.2022

Space exploration needs good communication.  Dr. Karl grills NASA veteran Dr. Younes. drkarl.com

Starbursts with Dr Adele Goodwin (306) 11.09.2022

Their guts are called Nuclear Pasta. You need X-Ray space telescopes to capture their burps. Observations take kiloseconds. What kind of stellar monsters are inhabiting our galaxy? Dr Adele Goodwin gives Dr Karl an insight. drkarl.com

Monopoles & Inflation with Prof Lewis (305) 04.09.2022

Monopoles and Inflation are Cosmic.  Professor Lewis shows Dr. Karl their theoretical universal origins.  Drkarl.com geraintflewis.com

Our biggest Space Telescope with Professor Lewis (304) 28.08.2022

There are more than a new set of lenses on the JWST. It has better eyes, a giant sun shield and a new brain. Professor Lewis helps Dr Karl interpret the astounding images coming from our Lagrange point. drkarl.com geraintflewis.com

Agreeing to Disagree with Professor Arvanitakis (303) 21.08.2022

 Antisocial behaviour is increasing. Why ? Professor Arvanitakis dissects the problem and gives Dr Karl some practical solutions. drkarl.com Prof Arvanitakis

Creatures with Professor Dieter Hochuli (302) 14.08.2022

Creatures surround us . All we have to do is look. Professor Dieter Hochuli shows us a living world right on our doorstep. https://www.urbanfieldnaturalist.org/book drkarl.com @dieterhochuli

Ice Cores with Dr Lenneke Jong (301) 07.08.2022

Near the South pole is a buried time machine. It can take us back to our Ice Ages . Dr Jong explains what it is and why science in Antarctica is crucial in understanding Climate Change.  

Hydrogen with Dr Fiona Simon (300) 31.07.2022

So many earthly problems can be addressed- at least theoretically - with Hydrogen. Most involve switching from carbon but many engineering issues arise. We have never done this at scale.  Is Hydrogen the answer?  Dr Karl discusses a H2 Future with Dr Fiona Simon from the Australia's Hydrogen Council. drkarl.com h2council.com.au

Is fasting a fad with Dr Nick Fuller (298) 17.07.2022

The good news for intermittent fasters is that cutting calories reduces your weight. The bad news? Shorter eating windows may have no effect on your long-term health.  intervalweightloss.com.au  

Medical Cannabis with Dr Bahceci (299) 10.07.2022

Medicinal use of cannabis is a big deal. How many cannabinoid chemicals are there? How receptive is the human body? Can you drive a car after CB pain relief? The answers vary. Dr Karl and Dr Bahceci have the Australian science. Always check with your local authorities on the law. EP299 @DilaraB_PhD drkarl.com  

Testing the BMI with Dr Nick Fuller (297) 10.07.2022

BMI (Body Mass Index) is a universal health tool. Dr Karl and Dr Nick delve into its past and why it still is an indicator of good health despite many shortcomings.   intervalweightloss.com.au  

Forensic Psychology with Associate Professor Helen Paterson (296) 03.07.2022

Forensic science explores physical evidence at a crime scene. So what does forensic psychology add? Can behavioural patterns be left at crime scenes? Associate Professor Paterson explains this new field to Dr Karl.  drkarl.com

Quantum Computing with Professor David Reilly (295) 26.06.2022

All our computers are obsolete - theoretically. On the horizon are superfast devices operating close to the speed of light at the extremity of the limits of physics. This is the world of Professor David Reilly. Dr Karl gets a glimpse of the Quantum PC. drkarl.com 

A Gambler's Mind with Dr Tobias-Webb (294) 19.06.2022

What keeps gamblers in the game?  How many wins? Not as many as you think. Sociologist Dr Tobias-Webb explains to Dr Karl why some imagine they are on a winning streak when they are not - and the technology exploiting these beliefs.  A journey through the risk and reward structures of the human mind. Drkarl.com

Jupiter with Professor Geraint Lewis (293) 12.06.2022

Jupiter is a huge planet. It is more than twice as massive as all the others combined. So what stops it from catching fire and becoming a star ? Professor Lewis describes the physics of gassy giants.

Sleep with Professor Siobhan Banks (292) 05.06.2022

There are many sleep myths.  Dr Karl clears up some with sleep researcher Professor Banks. So are there links between bad sleep and inflammatory disease? drkarl.com

Babylon spreadsheets with Dr Daniel Mansfield (291) 29.05.2022

Babylonian clay tablets are not always as they seem. What looked like a Pythagorean spreadsheet turned out to be much more. An Australian mathematician has applied his rural experience and research skills to reveal links to social changes 4,000 years ago . Dr Karl and Dr Mansfield discuss why and how this is. NB - Base 60 will be mentioned.   drkarl.com

Prof. Clare Collins with four ingredients for Health (290) 22.05.2022

Dietetics Professor Collins has found four ingredients to improve our health. They are inexpensive, easy to prepare and natural. She has even road tested recipes to try.  htttps:\\drkarl.com https://nomoneynotime.com.au/

Prof Holmes & the COVID-19 Origin (289) 15.05.2022

Virologists now agree on the area where the COVID-19 epidemic began in Wuhan, China. Dr Karl asks Professor Holmes how they arrived at this conclusion and the photos he took of the site before the outbreak began. https\\:drkarl.com   

The Matter of Everything with Dr Suzie Sheehy (288) 15.05.2022

Observe, Ask, Explain, Predict , Test. These are the steps scientists use to improve our knowledge. Dr. Suzie Sheehy is a particle physicist. She talks with Dr Karl about twelve significant experiments that changed the modern world. Ep288 [Repeat] https://drkarl.com https://suziesheehy.com    

Hunting Exoplanets with Prof. Glazebrook (287) 01.05.2022

Earth-like planets are rare but the hunt for more is on. Professor Glazebrook is Principal Investigator for the James Webb telescope and introduces Dr Karl to the world of infra-red observation. https:\\drkarl.com

Dr Adrian Brown : An Australian on Mars (286) 24.04.2022

Dr Karl talks with an Aussie who works full time on the surface of Mars. Meet Dr Adrian and his RC explorer "Percy". They are looking for water on the red planet and pushing the boundaries of science .  http:\\drkarl.com @DrAdrianJBrown1

Kilonovas with Professor Tara Murphy #3 (285) 17.04.2022

Heard of Kilonovas ? Prof Murphy works with them all the time. What about Supernovas ? In an expanding universe do things always get bigger ? Dr Karl investigates. https:\\drkarl.com  

Missing Gold with Prof. Tara Murphy #2 (284) 10.04.2022

Once you find gravity waves, what's next ? Gold ! The most stable and heavy element we know of lies central to our interpretation of our cosmos. Coincidence ? Dr Karl consults Prof Murphy. https:\\drkarl.com   

Listen to the Shirtloads of Science podcast in Replaio

Radio and podcasts in one app - free, with no sign-up. Install today and do not miss the launch

Get it on Google Play

Replaio is not a podcast publisher; show names, artwork and audio belong to their authors and are distributed through public RSS feeds.