Dr Karl asks a fellow physicist for the telltale signs when powerful people spread untruths. They are easy to spot and nasty. DrKarl

The graph points skywards. A thousand of years of data says "stop burning carbon". Prof Mann tells Dr Karl of how the USA responded to his articles in the early 1990s. DrKarl

Dr Karl interviews Dr Bloom in NYC on the ethics of Artificial Intelligence. If AI delivers misinformation, how could we tell? Dr. Karl

At the moment there are two G's in AI. Dr Karl gets the 360 tour of both with Dr Jessica Bloom in New York City. DrKarl

Edwin Hubble is world famous. What about Henrietta Swan Leavitt? She found a way to measure and classify the universe. In Dava's book "The Glass Universe" she references the half million glass slides Henrietta and other women used to document both the northern and southern skies.

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. https://drkarl.com https://suziesheehy.com

Data is omnipresent and society is very connected Thirty years ago futurists said tech "convergence" would deliver us seamless digital lives So are we there yet?. Dr Karl gets a fact check from "Converge" author Associate Professor Catherine Ball. drkarl.com

Bird Brains are different. Professor Irene Pepperberg has been probing their psychology for decades. She is the author of the NY Times bestseller 'Alex and Me', the story of her 30-year experiment with a grey parrot. Alex the parrot

Auroras, fireballs and space junk. They are all visible. Prof Lisa and Dr Karl discuss how and where you might spot them. Also, how you can get your name into space. drKarl.com lisaharveysmith.com

There is a family of chemicals that has drug companies popping corks. Obesity researcher Dr Nick Fuller explains to Dr Karl how they work and why they sometimes fail. Healthy Parents Healthy Kids with Dr Nick Fuller DrKarl

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. Healthy Parents Healthy Kids by Nick Fuller DrKarl

Dr Tom Crawford explains to Dr Karl how using fluid density might improve your sporting performance. Listen out for duelling and marathon running references. TomRocksMaths drKarl.com

Playing sport on a rotating planet has advantages. Dr Tom Crawford gives Dr Karl tips on using Maths to score more goals and break records. TomRocksMaths Drkarl.com

When degenerate electrons meet 0.47 of a solar mass what happens? This is the start of Dr Kirsten Banks' PhD thesis. Dr Karl investigates the secret behaviour of Red Giants in the Milky Way and their Helium flashes. Kirsten Banks (astrokirsten.com.au) DrKarl.com

The bird family tree may need pruning. Geneticists have made new connections that take us back to the great extinction event. Professor Ho explains to Dr Karl how this is changing our views on dinosaurs and chickens. Prof Simon Ho DrKarl.com

Dr Karl learns a new German word 'dunkelflaute'. Rare in Australia yet it plays havoc in colder countries. Yet another reason why atomic reactors are a poor choice for Australia as Dr Barnes explains. Dr Barnes drkarl.com

Under current net zero plans, local renewables should directly supply 75% of our energy needs. What about the remainder? Dr Karl consults an engineer on why atomic reactors are a very poor choice for Australian conditions. Dr Barnes drkarl.com

Which planetary moons are the best? Space fanatic Kate Howells puts Dr Karl in orbit around some of our most interesting lumps of stuff. How will Earth's moon rate ? @SpaceKateH Drkarl.com

A shadow of Covid-19 lingers for many. Dr Karl continues his discussion with front-line clinician Professor Steven Faux. Good diagnosis and management offer some a healthy future. drKarl.com Long Covid

Poor health lingers after some Covid-19 infections. Dr Karl discusses the symptoms and solutions with a front-line Australian clinician as they delve into his book 'Long Covid’. drKarl.com Long Covid

Physics experiments, two centuries old, can still be used to probe matter and energy. Caitlin Thurn takes Dr Karl through the simple yet extraordinary results.

Dr Karl fact checks with Professor Lewis. What is the current understood state of the Universe and how close is the end ? Geraint F Lewis Dr Karl.com

Professor Clare Collins explains her ongoing research into one of the world's big killers - blood pressure. Prof Clare Collins Dr Karl

Dr Karl visits a list of stellar phenomena with interpretive help from radio astronomer Dr Laura Driessen. Topics include brown dwarfs, proper motion, Jumbos and Universal wobbles. https://astrolaura.com/ drkarl.com

Dr Karl investigates the science of rear emissions with a dietetics Professor Clare Collins. How much per day? What makes them smell? What makes them feel hot? Prof Clare Collins Dr Karl