Almost all of the regional and remote communities in Queensland do not have fluoridated drinking water, so why is this a problem? Dentist Dr Michael Foley debunks the infamous NTP report which suggested that fluoridated drinking water lowered IQ and breaks down how fluoride actually works and why it's so important for our dental health.…

Dr Karl uncovers a lifelong Australian quest to restore comfort and hearing with custom made eardrum transplants. Called Cleardrums, Professor Marcus Atlas is close to passing regulatory hurdles for human trials. Ep407 [Repeat] drkarl.com

Dr Karl (former father of the year) talks with Dr Nick Fuller (recent dad) about teaching children how to eat. The good habits learned early lead to healthy lives. Ep396 [Repeat] Healthy Parents Healthy Kids by Nick Fuller DrKarl

Why use a balloon to hunt the most elusive suff in the Universe? Dr Sirks takes Dr Karl through the history of Dark Matter and why astronomy is only part of the solution. Ep379 [Repeat] Dr Karl Dr Sirks

Atmospheric Carbon is burning us up. CO₂ is the big culprit but what about methane? Industry calls it "natural gas" but sheep and cattle belch millions of tons. Australian scientists have a very cool answer with seaweed. drkarl.com seaforest.com.au

Weight loss medicines are never easy. What happens when your brain says you're full? Dr Karl and Professor Clare Collins explore the promises and pitfalls plus the ones that occasionally kill. drkarl.com

Our warming world means more humidity. You can't see it but you can feel it. Professor Ollie Jay introduces Dr Karl to wet bulb thermometers, how sweating works and why humidity gets you down. DrKarl.com Prof Ollie Jay

Summer heat waves are increasing - so AC or fan, what is best? The answer becomes unclear when air temperatures are in the high 30s. Professor Jay takes Dr Karl inside your sweat glands to discover the physics of keeping cool. DrKarl.com Prof Ollie Jay

Author and astrophysicist Marcus Chown is a great explainer. A British stargazer, he studied under Richard Feynman in California. Dr Karl puts him to the test talking about Marcus' latest book on black holes "A Crack in Everything". DrKarl.com @marcuschown

Physics on both galactic and personal scales are explored and answered with Dr Jessica Bloom and Dr Karl. drkarl.com .

We are so lucky to be alive. Dr Sara Webb's 'The Little book of Cosmic Catastrophes' looks at dangerous galactic neighbours. So what are the chances of finding Earth 2.0 ? drkarl.com dr sara webb

Dr Karl consults with circular economy expert, experienced waste manager, change maker and garbologist Belinda Chellingworth. Waste is expensive so well-designed product cycles makes it better for us all. drkarl.com BC Consulting

A shameless piece of cross promotion for ABC podcast 'What the Duck' with Dr Ann Jones about plant and animal reproduction. Contains names of body parts, fluids, graphic descriptions and one swear word. drkarl.com What the duck podcasts

Global Warming is caused by burning fossil fuels. "Slick: Australia's Toxic Relationship With Big Oil " is journalist Royce Kurmelovs' account of our role. Dr Karl and Royce and explore how the science was silenced Down Under. drkarl.com

Dr Karl talks with the Australian working on the surface of Mars, Dr Adrian Brown from NASA. Hear how AI saved "Percy" the Rover, what those leopard-spotted rocks could mean and Dust devil strategies. drkarl.com Dr Adrian J Brown

Dr Frederic Bertley is a leading educator, President and CEO of the Center for Science and Industry (COSI), one of America’s top-ranked science museums. Dr Karl explores tactics in the war on Pseudo and Anti-science. drkarl.com Cosi.org

Feelings live in our brain. Some are painful like anxiety and addiction and can ruin lives. So why aren't hypnotherapy treatments more widely used? Dr Karl asks Stanford University psychiatrist and leading researcher on hypnosis Dr David Spiegel with 50 year's experience. drkarl.com Dr Spiegel

What will our human space colonies look like? Dr Karl checks with research spanning more than 10,000 years. Meet University of Sydney's Professor Roland Fletcher. drkarl.com Prof Fletcher

Stand-up comedian, ex-maths teacher and author Matt Parker chats about his bestselling book on three-sided figures called Love Triangle. Dr Karl explores what fascinates us about trigonometry. drkarl.com matt parker

When Artificial Intelligence is everywhere what should be the rules? Dr Karl and Natasha Blycha test Isaac Asimov's Laws of Robotics and find they need updating. drkarl.com

Author and astrophysicist Marcus Chown tells of the forgotten Australian female astronomer who helped discover the first black hole. Dr Karl digs deeper into Marcus' latest book on black holes "A Crack in Everything". DrKarl.com @marcuschown

In this repeat episode, Dr Karl uncovers a lifelong Australian quest to restore comfort and hearing with custom made eardrum transplants. Called Cleardrums, Professor Marcus Atlas is close to passing regulatory hurdles for human trials. drkarl.com

Prof Puckett from the US explains how America lost its fire ant war and Jess Ward-Jones on the struggle to learn what is killing our Alpine Eucalypts (Snow Gums). drkarl.com

Professor Richard Scolyer is the 2024 joint Australian of the Year. Dr Karl probes skin cancer therapies and immunotherapies with a researcher who has put his life on the line. drkarl.com https://twitter.com/ProfRScolyerMIA https://www.facebook.com/ProfRScolyer https://www.instagram.com/profrscolyer/?hl=en…

Phones made today are super smart. Fast and versatile they can be so powerful to be spooky. Dr Matt joins Dr Karl to peel back the AI layers for a set of rules for the future.