What's actually happening when you get the wind knocked out of you? Why does swallowing combat yawning? And could we ever visualise someone else's pain?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

If the whole population stood in one spot and ran would the earth spin like a treadmill? What would happen if gravity didn’t exist? And are farts powerful enough to propel you in space?

Dave from Glass Animals asks these questions and more on this bonus episode of Science with Dr Karl.

Why is it so dangerous to look directly at a solar eclipse? How do we know that all foods taste the same to every person? And the big question - do aliens exist? 

Dr Karl and special guest, Kirsten Banks, answer these questions and more on triple j Mornings with Lucy Smith. 

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.

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.

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.

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.

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.

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.

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.