Shirtloads of Science

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. https://drkarl.com/

Dr Driessen decodes (383) 05/12/2024

Dr Driessen decodes (383) 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. /episode/index/show/shirtloadsofscience/id/29999138

Fart Busting with Prof Collins (382) 05/05/2024

Fart Busting with Prof Collins (382) 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? /episode/index/show/shirtloadsofscience/id/29883823

The Nymphageddon with Dr. Trebicki (381) 04/28/2024

The Nymphageddon with Dr. Trebicki (381) Crops under attack, falling nutrition, viruses spread by Insects. Dr.Trebicki researches agriculture on a warming planet and the news is not great. Dr Karl addresses the myth that Carbon Dioxide is good for all plants. /episode/index/show/shirtloadsofscience/id/29838623

Solid State Logic with Dr Lang (380) 04/21/2024

Solid State Logic with Dr Lang (380) Silicon chips are everywhere. Will they continue to multiply ? Does meeting carbon reduction targets rely on Solid State efficiency ? Dr Karl talks benefits and costs with Dr Lang. /episode/index/show/shirtloadsofscience/id/29671198

Ballooning for Dark Matter with Dr Sirks (379) 04/14/2024

Ballooning for Dark Matter with Dr Sirks (379) 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. /episode/index/show/shirtloadsofscience/id/29625078

Neonicotinoids with Dr Sanchez-Bayo (378) 04/07/2024

Neonicotinoids with Dr Sanchez-Bayo (378) There is a perception that the worst pesticides were banned years ago. So why are Insects (including bees) in decline? Dr Sanchez-Bayo says a family of water soluble pesticides are to blame. He names them and wants to know why they are still being sprayed in Australia. /episode/index/show/shirtloadsofscience/id/29609018

iFasting with prof Varady (377) 03/31/2024

iFasting with prof Varady (377) One of the most popular diets today was studied by professor Varady over 20 years ago. She now teaches in Chicago. Dr Karl finds out why intermittent fasting is so successful. /episode/index/show/shirtloadsofscience/id/29608223

Viral History with A/Prof Morgan (376) 03/24/2024

Viral History with A/Prof Morgan (376) Cat ladies, Australians and Chickens have all helped to advance our knowledge of Viruses and their link with Cancer. Dr Gregory has investigated the history and written a book about how we got where we are. X: @DrGMorgan Threads: @dr.gregory.morgan Blue Sky Social: @drgregorymorgan.bsky.social /episode/index/show/shirtloadsofscience/id/29475078

Safe Design with Dr Sonya Brown (375) 03/17/2024

Safe Design with Dr Sonya Brown (375) When Aircraft accidents happen we investigate how and why. Dr Sonya Brown tells Dr Karl about the process of improving safety and the importance of learning from incidents. /episode/index/show/shirtloadsofscience/id/29401303

Decoding Chaos #2 with Professor James (374) 03/10/2024

Decoding Chaos #2 with Professor James (374) The observed Universe is very binary and occasionally poly. Professor James takes Dr Karl inside a collapsing star and suggests how the last ray of starlight will shine. /episode/index/show/shirtloadsofscience/id/28777998

Decoding Chaos #1 with Professor James (373) 03/03/2024

Decoding Chaos #1 with Professor James (373) How should we explain bumps in the observations of Stars? Cosmology is full of intangible forces. Professor Renee James explains "Helium Flash", why it is mostly invisible to us and when density matters. /episode/index/show/shirtloadsofscience/id/28777458

Cleaner Air with Dr King (372) 02/25/2024

Cleaner Air with Dr King (372) Lung Disease is killing more of us each day. As temperatures rise, why is our air more contaminated ? Dr King explains how it's happening and what to do about it. /episode/index/show/shirtloadsofscience/id/29267913

The Standard pt 2 with Professor Lewis (371) 02/18/2024

The Standard pt 2 with Professor Lewis (371) In part 2, Prof Lewis introduces Dr Karl to Quarks, Leptons and Bosons. It's a messy subatomic zoo and still our Standard Model of everything.Avoid brain pain and listen to part 1 first . /episode/index/show/shirtloadsofscience/id/29139203

The Standard pt 1 with Professor Lewis (370) 02/11/2024

The Standard pt 1 with Professor Lewis (370) The Standard Model for everything ... is full of weird names and strange numbers. In part 1, Prof Lewis explains to Dr Karl how we got into this mess and why this mess still holds true. /episode/index/show/shirtloadsofscience/id/29139183

Vaper Trails pt 2 Prof. Chapman (369) 02/04/2024

Vaper Trails pt 2 Prof. Chapman (369) Vapes are 21st century inventions but the science of smoking and its dangers are well known. Prof. Chapman tells Dr Karl how Vapes are likely to be worse than tobacco, why "Puff Parameters" lead to such conclusions, and how lung cancer became a top killer. /episode/index/show/shirtloadsofscience/id/29291438

Vaper Trails pt 1 with Prof. Chapman (368) 01/28/2024

Vaper Trails pt 1 with Prof. Chapman (368) On Jan 1st , Australians have new buying restrictions for vapes. Prof Chapman guides Dr Karl through the Science of Nicotine addiction, how to battle Big Tobacco and why access rules must change. /episode/index/show/shirtloadsofscience/id/29289798

Sleep with Professor Siobhan Banks (292)RPT 01/21/2024

Sleep with Professor Siobhan Banks (292)RPT 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? /episode/index/show/shirtloadsofscience/id/22736771

Creatures with Professor Dieter Hochuli (302)RPT 01/14/2024

Creatures with Professor Dieter Hochuli (302)RPT 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 /episode/index/show/shirtloadsofscience/id/23966550

Medical Cannabis with Dr Bahceci (299)RPT 01/07/2024

Medical Cannabis with Dr Bahceci (299)RPT 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. /episode/index/show/shirtloadsofscience/id/23515901

Arthritis supplements with Professor Collins (316)RPT 12/31/2023

Arthritis supplements with Professor Collins (316)RPT Someone you know is being treated for Arthritis. Fifteen per cent of Australians suffer pain daily and there are few safe drugs. This has led to shelf loads of "supplements" and "alternatives". Does any of it work? Professor Collins compiles the best research to date. Most do nothing (so don't waste your health, time or money). /episode/index/show/shirtloadsofscience/id/24850473

Sunscreen Science with Geoff Mutton (342) RPT 12/24/2023

Sunscreen Science with Geoff Mutton (342) RPT What is the best way to protect your skin? Dr Karl seeks ground truths from an industrial chemist. Is it all in the science of drying paint ? /episode/index/show/shirtloadsofscience/id/27023532

Bee Genes #2 with Dr Remnant (367) 12/17/2023

Bee Genes #2 with Dr Remnant (367) Epigenetic jellies did not help. Feral bees made it worse. When a species-jumping parasite landed in Australia, our biosecurity controls ultimately failed. Bee geneticist Dr Remnant explains to Dr Karl how we lost round one against Varroa and the battles now being planned. /episode/index/show/shirtloadsofscience/id/28698633

Bee Genes #1 with Dr Remnant (366) 12/10/2023

Bee Genes #1 with Dr Remnant (366) Human prosperity has risen on the wings of bees - until recently. A species-jumping parasite has landed in Australia. Bee geneticist Dr Remnant explains to Dr Karl how and why this is so risky. /episode/index/show/shirtloadsofscience/id/28698618

Repair & Recovery with Dr Adrian Brown from NASA (365) 12/03/2023

Repair & Recovery with Dr Adrian Brown from NASA (365) Space hardware needs to be reliable, affordable and repairable. Recycling rockets and reprogramming helicopters are all part of a day's work for support staff. /episode/index/show/shirtloadsofscience/id/28428581

Martian Bath Rings with Dr Adrian Brown from NASA (364) 11/26/2023

Martian Bath Rings with Dr Adrian Brown from NASA (364) Salts prove Mars once had water. The rings tell us more about how and when this happened. Also the story of the lost chopper and how they found it. Dr Karl with first-hand accounts from Percy's driver. /episode/index/show/shirtloadsofscience/id/28428566

Billion-LY Bubble with Prof Lewis (363) 11/19/2023

Billion-LY Bubble with Prof Lewis (363) Dr Karl gets a detailed briefing on a giant starry bubble just announced. Professor Lewis includes CMB, BAOs and traces of Dark Matter in his explanation. /episode/index/show/shirtloadsofscience/id/28372133

G-Bombs with Prof Lewis (362) 11/12/2023

G-Bombs with Prof Lewis (362) There are F Bombs in the Oppenheimer movie but no mention of G Bombs. Dr Karl probes Prof Lewis for the original source of atomic energy . The answer is surprising. /episode/index/show/shirtloadsofscience/id/28353749

Knot Maths with Assistant Professor Lisa Piccirillo (361) 11/05/2023

Knot Maths with Assistant Professor Lisa Piccirillo (361) Dr Karl meets Assistant Professor Lisa Piccirillo who unravelled an age-old knotty problem with four dimensional topology. Professor Piccirillo will deliver the Simon Marais Memorial Lecture at The University of Sydney on 7 November, register /episode/index/show/shirtloadsofscience/id/28401800

Cosmic Ticks #2 with Prof Lewis (360) 10/29/2023

Cosmic Ticks #2 with Prof Lewis (360) How far can we "see" through Space-Time? Professor Lewis takes Dr Karl to a place where everything is in slo-mo (relatively). The discussion naturally concludes with Time Machines. /episode/index/show/shirtloadsofscience/id/28184798

Cosmic Ticks #1 with Prof Lewis (359) 10/22/2023

Cosmic Ticks #1 with Prof Lewis (359) How do Cosmologists measure Space-Time? Professor Lewis explains Einstein's clocks and the new cosmic ticks. /episode/index/show/shirtloadsofscience/id/28184792

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