Dr Karl Podcast podcast

Dr Karl Podcast

Join Dr Karl Kruszelnicki, Lucy Smith and their scientific guests, with a bunch of curious triple j listeners for a weekly injection of science, myth-bashing and answers!

Join Dr Karl Kruszelnicki, Lucy Smith and their scientific guests, with a bunch of curious triple j listeners for a weekly injection of science, myth-bashing and answers!

 

#250

Tick bites, dirty diamonds and the bacteria takeover

Why does my voice wobble when I have vulnerable conversations? Why does food taste different at different temperatures? And how do you grow seedless mandarins if they have no seeds? Dr Karl answers these questions and more on triple j Mornings with Bec Charlwood. ... Read more

18 Apr 2024

33 MINS

33:17

18 Apr 2024


#249

Flushing etiquette, growing pains and heat vs temperature

What impact does trauma have on your memory? Why do chillies burn your tongue and lips but not your throat? And could octopuses take over the world?  Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

11 Apr 2024

39 MINS

39:01

11 Apr 2024


#248

Cloning dinosaurs, inbreeding implications and the soft cheese crisis

Why do some medications reduce your sex drive? Why do dogs bite their own tail? And if you were preparing for the end of the world, what is the one medication you would take with you? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

04 Apr 2024

36 MINS

36:29

04 Apr 2024


#247

Tea wees, volcanic extinction and muscle loss

What is it about beans that make us fart? Why do we lose muscle so quickly? How does a drink's temperature impact its fizz? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

28 Mar 2024

39 MINS

39:37

28 Mar 2024


#246

Violent burps, sneezing erections and breathing bums

Why do old people have such a distinctive smell? What would happen if gravity suddenly doubled? And why do my limbs always swell during a flight? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

21 Mar 2024

37 MINS

37:27

21 Mar 2024


#245

Shooting stars, astrology vs. astronomy and spaghettification

Is it possible to speed up or slow down the speed of sound? Will stars eventually become invisible to the naked eye? And what would happen if you took your space suit off in space? Dr Karl and special guest, Dr Laura Driessen, answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

14 Mar 2024

39 MINS

39:30

14 Mar 2024


#244

Space smells, flying headaches and nails

What does space smell like? Is the youngest sibling technically more elite? And do bushfires burn at a lesser intensity when at higher altitudes? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

07 Mar 2024

37 MINS

37:00

07 Mar 2024


#243

Leap years, dizziness and epoxy resin

Why does the sun feel hotter on certain days? What would happen if an astronaut sneezed inside his helmet while in space? And does drinking lots of water make you sweat more? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

29 Feb 2024

38 MINS

38:56

29 Feb 2024


#242

Throat tickles, arctic currents and sticky surfaces

How important are orgasms to our mental health? What would happen if the world stopped spinning? And would expired milk be safe to drink if you boiled it? Dr Karl answers these questions and more on triple j Mornings with Ash McGregor. ... Read more

22 Feb 2024

33 MINS

33:21

22 Feb 2024


#241

Bubble baths, sustainable populations and virtual reality

Does working out increase your sex drive? Should we be worried about seagulls eating too many chips? And how has a stingray who's had no contact with males for eight years become pregnant? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

15 Feb 2024

32 MINS

32:01

15 Feb 2024


#240

Synthetic meat, collagen and sperm races

Can drinking apple cider vinegar improve gut health? Is it okay to put chicken in the fridge while it’s still hot? And how does the carnivore diet affect the body? Dr Karl and special guest, Professor Clare Collins, answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

08 Feb 2024

38 MINS

38:22

08 Feb 2024


#239

Healing heat, barefoot skiing and dominant hands

Are we connected to all our muscles? Why do I get sleepy when I have passengers in my car? Does drinking alcohol through a straw get you drunk faster?Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

01 Feb 2024

39 MINS

39:19

01 Feb 2024


#238

Fizzy poop, cold orgasms and hand drying hacks

How does a shark smell blood in water? Does jet lag feel worse when travelling east to west? Should we be worried about the bacteria between our toes? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

25 Jan 2024

37 MINS

37:25

25 Jan 2024


#237

Lightening balls, parallel galaxies and soda water

Could you sunbathe on the moon? Does the atmosphere alter our vision? Does the earths magnetic field impact gravity? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

18 Jan 2024

40 MINS

40:04

18 Jan 2024


#236

Min Min lights, wet swimmers and antibiotics

Does sex impact sporting performance? What is antibiotic resistance? Should we give plastic trees the axe? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

11 Jan 2024

38 MINS

38:01

11 Jan 2024


#235

Fish gills, earwax and bio-luminescent algae

How do we remove earwax safely? Why is it cold at the peak of a mountain if hot air rises? Why don't scars tan? Bianca Nogrady answers these questions and more on triple j Mornings with Lucy Smith. ... Read more

14 Dec 2023

38 MINS

38:01

14 Dec 2023


#234

Sticky skin, thunderstorms and funnel-web spiders

Can thunder hurt you? Why is my skin sticky? Why do I have the exact same dream every night? Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith. ... Read more

07 Dec 2023

38 MINS

38:01

07 Dec 2023


#233

Synesthesia, goosebumps and music taste

Why do certain tracks make us cry? How can a song take you back to a specific moment in time? What influences your music taste? Dr Karl & Dr Solange Glasser, Senior Lecturer in Music Psychology at the Melbourne Conservatorium of Music, answer these questions and more on triple j Mornings with Lucy Smith. ... Read more

30 Nov 2023

41 MINS

41:46

30 Nov 2023


#232

Cortisol, histamine and toe nails

If I hold my nose when i sneeze, will my eyes pop out? Why can't we grow arms and legs back? Why do we cry? Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith & Dr Theresa Larkin, Associate Professor at the University of Wollongong. ... Read more

23 Nov 2023

43 MINS

43:01

23 Nov 2023


#231

Christmas Beetles, Venus and farts

Where are all the Christmas beetles? Why do some mammals sweat and others don't? If the cells in our body get replaced every 7 years - why do our tattoos stay? Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith. ... Read more

16 Nov 2023

39 MINS

39:52

16 Nov 2023


#230

Hibernation, fungus and foamy trees

Why do weeds grow faster than other plants? What happens when our body cramps? How do Bears hibernate? Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith. ... Read more

09 Nov 2023

39 MINS

39:52

09 Nov 2023


#229

Transmitting from the moon, plant fires and twin dreams

Do flies like humans more than poop? How is dark energy created? Will masks change the evolution of our face? Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith. ... Read more

02 Nov 2023

42 MINS

42:19

02 Nov 2023


#228

Stargazing, rovers and Mars

Could we adapt to the climate on Mars? What is system inertia? How scientifically accurate is the 2015 film 'The Martian'? Our special guest this week is Dr Adrian Brown from NASA's Jet Propulsion Laboratory. He and Dr Karl answer these questions and more, on triple j Mornings with Lucy Smith. ... Read more

26 Oct 2023

37 MINS

37:15

26 Oct 2023


#227

Wind farms, kelp forests and jellyfish

Why do insects bite me and not my partner? What impact do wind farms have on marine life? How do underwater noises effect dolphins? Our special guest this week is Dr David Wachenfeld from the Australian Institute of Marine Science. He and Dr Karl answer these questions and more, on triple j Mornings with Lucy Smith. ... Read more

19 Oct 2023

38 MINS

38:31

19 Oct 2023


#226

Itching, black holes and dogs

Why do we itch at random times? Will mining on the moon affect Earth? How do tracking dogs pick up people's scent? Dr Karl answers these questions and more, on triple j Mornings with guest host Ash McGregor. ... Read more

12 Oct 2023

42 MINS

42:37

12 Oct 2023


#225

Whale hearts, ear wax and eyeballs

What causes colours in sunsets? Why can some people spin their eyes really fast? How much pollution is being emitted when a car sits at traffic lights? Dr Karl answers these questions and more, on triple j Mornings with guest host Pip Rasmussen. ... Read more

05 Oct 2023

42 MINS

42:37

05 Oct 2023


#224

Radioactive ooze, dodging bullets and limitless brain

Dr Lucy and Dr Karl are joined by special guest astrophysicist Professor Geraint Lewis to answer all your science questions inspired by movies! What's the most accurate time travel movie? How fast do you need to move to dodge bullets? When will we get hoverboards? ... Read more

28 Sep 2023

40 MINS

40:34

28 Sep 2023


#223

Varrora mites, El Nino and ocean salt

Can Metalcore clear your throat? Can you make alcohol out of paper? Why is the ocean salty? Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith. ... Read more

21 Sep 2023

42 MINS

42:14

21 Sep 2023


#222

Evolution, knees and static electricity

What part of our nose do we use to smell? Will climate change effect evolution? Can you re-catch the sickness you gave to someone else? Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith. ... Read more

14 Sep 2023

39 MINS

39:22

14 Sep 2023


#221

Time travel, seahorses and climbing stairs

Where are we at with time travel? How come male seahorses give birth? Is it quicker to go up the stairs two steps at a time? Dr Karl answers these questions and more, on triple j Mornings with host Lucy Smith. ... Read more

07 Sep 2023

39 MINS

39:22

07 Sep 2023