Did the Big Bang make a noise? Can we measure the acoustics of a star? Neutrons or Protons - which lasts longest ? A 20-year experiment has answers to questions we never thought of asking. Professor Geraint Lewis reveals to Dr Karl the power of the baryon. http://www.drkarl.com http://www.geraintflewis.com
Aug 29, 2021•28 min•Season 4Ep. 35
On Wednesdays Dr Karl meets with school students around Australia (and sometimes overseas). He loves hearing what the curious young minds are thinking about. Their questions often set off new ways of thinking. Occasionaly the simplest questions are the hardest. This episode of Shirtloads is a Q&A session with the students from Aspendale Primary School, Victoria in May 2021. Enjoy! https://drkarl.com
Aug 22, 2021•41 min•Season 4Ep. 34
Dr Karl investigates Australia's latest CubeSat mission. It's called "CUAVA-1" and aims to measure blue carbon from space. Geosciences Associate Professor Eleanor Bruce is coordinating the team of researchers mapping coastlines for aquatic vegetation. Space Physics Professor Iver Cairns is squashing the technology into a package the size of a fat packet of biscuits. Dr Karl uncovers a truly Australian "Apollo 13" story . It includes a fishing line, amateur radio enthusiasts and a clever ground c...
Aug 15, 2021•27 min•Season 4Ep. 33
Dr Karl uncovers a truly Australian "Apollo 13" story . It includes a fishing line, amateur radio enthusiasts and a clever ground crew who "worked the problem". The mission was INSPIRE-2. Professor Eleanor Bruce and Professor Iver Cairns tell this extraordinary story. drkarl.com Inspire2 Cubesat @arc_cuava...
Aug 08, 2021•26 min•Season 4Ep. 32
In 2015 our observable universe unofficially added a new dimension. Dr Karl talks with ANU Professor Susan Scott about why she had to keep the discovery of gravitational waves a secret. Also how gravitational waves are helping us understand black holes so much better. @ozgravityguru drkarl.com
Aug 01, 2021•28 min•Season 4Ep. 31
In 2016 our observable universe officially added a new dimension : Gravitational waves. On that international LIGO team was an Australian theoretical physicist. Dr Karl talks with ANU distinguished professor Susan Scott about those observations and what Neutron stars may be revealing about their insides. @ozgravityguru drkarl.com
Jul 25, 2021•20 min•Season 4Ep. 30
The fastest circumnavigation route by sea is via the Southern Ocean around Antarctica. It is also the most dangerous. Australian solo sailer, Lisa Blair, has been there once already. She now is trying again . Dr Karl finds out why. lisablairsailstheworld.com drkarl.com
Jul 18, 2021•22 min•Season 4Ep. 29
At best, Earth is 1/3 soil. In recent years much has turned to dirt. This too-little-reported extinction crisis threatens us all. Chef and Farmer Matthew Evans gives Dr Karl his insight on the inch-thick survival strategy that could save us. We need to reinhabit the surface of our earth with a natural biome. drkarl.com Matt Evans
Jul 11, 2021•29 min•Season 4Ep. 28
Budgets are economic planning documents. Spending will feed growth. Cuts cause shrinkages. So what do Australian budgets say about the future ? Dr Karl asks economist Dr Richard Denniss' for his insights into the choices for 2022 and beyond. (Ute=Utility=Pickup (USA) & Uni=University) @RDNS_TAI Drkarl.com
Jul 04, 2021•19 min•Season 4Ep. 27
Dr Karl meets a PhD student studying frogs on Australia's East Coast. Many species are on the edge of extinction. Frogs living on the fringe of human habitations are most at risk. So how best can we best care for biodiversity ? IUCN Redlist Frog ID App ebird
Jun 27, 2021•21 min•Season 4Ep. 26
Celebrities often support pills, potions and creams that purport to make you look younger. What about dietary supplements for your skin ? Jennifer Aniston became the face of one brand’s collagen campaign recently. Is there any science in it ? Professor Clare Collins tells Dr Karl. the conversation nomoneynotime...
Jun 20, 2021•20 min•Season 4Ep. 25
Dietician Professor Clare Collins gives this celebrity diet expert analysis. UK singer Adele claimed it transformed her (along with Pilates and a personal trainer). The diet is based on a group of proteins called "Sirtuins". Adele sang its praises but is Sirtfood a fad, a fact or something in-between? the conversation
Jun 13, 2021•22 min•Season 4Ep. 24
What is inside the heart of an atom ? Why does it stay together ? The relative dimensions of atoms are huge - Imagine a fly in a cathedral (the fly is a nucleus). Professor Lewis takes Dr Karl on a journey to the center of matter as we know it. drkarl.com www.geraintflewis.com
Jun 06, 2021•27 min•Season 4Ep. 23
Dr Karl visits Dr Nick to compare two currently popular diets - the Low carbohydrate and the Ketogenic diet. . Dr Fuller talks through the basics of both and and what you can do to make lasting healthy changes. @drnickfuller intervalweightloss.com.au
May 30, 2021•27 min•Season 4Ep. 22
Taxonomy is how science classifies life. Sage Fitzgerald is a coral taxonomist and in this episode she schools Dr Karl on how it works. They discuss the phoenix project and the chase for new coral species and news from the Great Barrier Reef. Sage is also involved in the ‘Pint O Science’ Festival running until 28 May 2021. @seasciencesage coralprojectphoenix.org...
May 23, 2021•23 min•Season 4Ep. 21
Dr Karl visits Dr Nick for an analysis of the latest diets. In Covid times it is harder to stay in shape. Dr Fuller talks through the basics and what we can do to make healthy changes that last. @drnickfuller intervalweightloss.com.au
May 16, 2021•28 min•Season 4Ep. 20
An interview with one of the pilots of a 10.9 km dive into the Mariana Trench. It is deeper than Everest is high . The two-seat submersible is capable of withstanding huge forces and Dr Karl discusses the extreme physics and engineering needed to build and test the craft. drkarl.com
May 09, 2021•27 min•Season 4Ep. 19
When subatomic particles make news, Dr Karl and Professor Lewis are ready to help. The "chubby electron" has been neglected for decades, so why the fuss ? By popular request here is a special episode dedicated to why muons matter. www.geraintflewis.com http://drkarl.com
May 02, 2021•29 min•Season 4Ep. 18
What happens when the temperature seriously drops? Will "Dead Star" be more than a David Bowie album? Are protons the new Time lords? How Cool is a cool Universe ? Proessor Lewis updates Dr Karl on what the end of time miht look like. www.geraintflewis.com http://drkarl.com
Apr 25, 2021•22 min•Season 4Ep. 17
"Falling towards Virgo" is a big something . Our galactic future is wrapped up in it (according to current physics). Prof Lewis leads Dr Karl through our projected future. Also tips on how to spot Geraint's personal Quasar. www.geraintflewis.com http://drkarl.com
Apr 18, 2021•24 min•Season 4Ep. 16
The Kruszelnicki-Lewis sagas continue. The Future History part 3 is Unashamedly from an Earthling perspective it is based on accepted current theories. Professor Lewis confesses he's a Silurian. www.geraintflewis.com http://drkarl.com For completists "Future Universe History' parts 1 & 2 were eps 215 & 216.
Apr 11, 2021•25 min•Season 4Ep. 15
Imagine you have a trillion dollars to solve some really big problems. Things like climate change, disease and poverty. Dr Karl meets Rowan Hooper from the New Scientist, who has written about the economics of giant projects. They are more affordable, some pay for themselves and some become more expensive the longer we do nothing. @rowhoop drkarl.com
Apr 04, 2021•29 min•Season 4Ep. 14
Covid19 is revealing stark truths. The preservation of human life is both economic and cultural. Is there a better path ? Dr Karl discusses the value of a human life with Australian economist Dr. Richard Denniss. Both sides of the balance sheet have merit. Summers Link
Mar 28, 2021•25 min•Season 6Ep. 2
When atoms were smashed, particle physics went nuts. The subatomic domain should describe everything but so many pieces are missing. Dr. Karl and Professor Lewis look inside the atom in this podcast. So what the flip is subatomic particle physics ? drkarl.com
Mar 21, 2021•22 min•Season 4Ep. 12
Our lives are governed by physics. It is the science of matter and energy and without both we wouldn't be here. This past century we have discovered more about physics than ever before. Dr. Karl and Professor Lewis are going atomic in this podcast. So what the flip is particle physics ? Drkarl.com
Mar 14, 2021•21 min•Season 4Ep. 11
A disease has infected our civilisation. It is not a virus but we created it. Dr Richard Denniss calls it "Affluenza" and it may ruin everything if we don't fix it soon. @RDennisTwitter Curing Affluenza Drkarl.com
Mar 07, 2021•25 min•Season 4Ep. 10
Australia is sunny and flat. It should be the perfect place for Electric Vehicles. So why are Australians so slow to buy them ? Dr Karl asks lead journalist, Bridie Schmidt, from thedriven.io newsletter about the sluggish takeup downunder.
Feb 28, 2021•22 min•Season 4Ep. 9
Boundless. Limitless. The concept of Infinity has been with us for millennia. Dr Jessica leads Dr Karl on some mind experiments to see how our finite minds comprehend the universal.
Feb 14, 2021•29 min•Season 4Ep. 7
Four popular diets. Professor Collins gives two a conditional tick. It's Fast vs Mono vs Noom vs Charcoal. Can you pick the best ? Years of expertise sorts the dangerous from the reliable - rpt drkarl.com the conversation
Feb 07, 2021•31 min•Season 4Ep. 6
Specialist jobs are being created right now. Annie Handmer is ahead of the game as a "Space Diplomat". If junk from the sky kills your satellite or pollutes your land then space law applies. You need representatio. Who to call ? Discover how innovation and passion fuel a fresh generation of innovators.
Jan 24, 2021•13 min•Season 1Ep. 115