Dr Karl Podcast

Latest Episodes:

Underwater volcanoes, dog yawns, immortality Jul 13, 2017

Show notes

Why don't your teeth grow, like nails or hair? What is the smallest particle and what is it made up of? How does natural instinct work?

Deep sea climate change, enviro bags, over-fishing Aug 20, 2015

Show notes

It's a Marine Science Special! Professor Emma Johnson joins Dr Karl and Zan Rowe to help answer your ocean-based science questions.

3D printed organs, muscle memory, that op shop smell Aug 13, 2015

Show notes

Why do op shops all smell the same? Why can't we use 3D printers to print organs? Is there any benefit to avoiding gluten?

Emotional chords, hungover libido, forced smiles Aug 06, 2015

Show notes

Does forcing a smile really make you happier? Why do certain notes or chords have emotional responses? Is urine good for helping lemon trees grow?

Big dinosaurs, sun flames, four seasons in one day Jul 30, 2015

Show notes

How does addiction work? Why were dinosaurs so big? Does stress shorten your life?

Runny noses after eating? Why is urine yellow? Could space be a sphere? Jul 23, 2015

Show notes

Why does my partner get a runny nose, after eating a hot dinner? Why is urine actually yellow? Could space possibly be a sphere?

The science of driving Mar 29, 2012

Show notes

Why do people get tired when driving? Is it possible to drive a fast car upside-down in a long, circular tunnel? Are your chances of surviving a car accident better if you are asleep and you're body is limp?

Rocking during sleep, morning sickness and coloured cat fur Mar 22, 2012

Show notes

Why do people rock from side-to-side when they sleep? Plus: are humans the only mammal that suffers morning sickness during pregnancy?; and why can cat fur have different colours along the length of each strand of hair?

Peeing on lemon trees, hereditary birth marks and yellow sunglasses Mar 08, 2012

Show notes

Why is it considered a good thing to urinate on lemon trees? Plus: can birth marks be hereditary?; and why do yellow sunglasses make daylight appear brighter?

Swallowing chewing gum, taste buds and drinking milk Mar 01, 2012

Show notes

What happens if you swallow chewing gum? Plus: can a woman's tastebuds change during and after pregnancy?; and can drinking milk cause osteoporosis?