Do ants outweigh humans? Are we getting any more water on Earth? And why do dreams leave us on cliffhangers?

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

What would happen to the universe if we could time travel? How fast does the earth move? And at what point does our brain switch from awake to asleep?

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

Will trees adapt to climate change? What causes migraine auras? And what happens in your body when you quit vaping?

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

How does boiling water affect tea? What is the instant smell from a packet of salt and vinegar chips? And how do carbohydrates and protein interact in our digestive system?

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

What's the correlation between black holes and time travel? Do batteries weigh less when they are empty? Why do some people develop indigestion later in life?

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

Should you really be weeing on your lemon tree? How close are we to finding proof of life on Mars? And what would happen to a helium balloon in zero gravity?

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

It turns out, you have A LOT of science (and not-science) questions for Dr. Karl - and he's going to answer them!

What is the science behind Deja-Vu? Do we all see the same colours? Does cotton cause indigestion?

Dr Karl answers these questions and more on triple j Mornings with Jaimee Taylor-Nielsen.

It turns out, you have A LOT of science (and not-science) questions for Dr. Karl - and he's going to answer them!

What would happen if we all jumped at once? Is there anything a black hole can't swallow? And what cooks faster, baked or boiled sweet potato?

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