What makes things sharp?
Which is the tiniest dinosaur?
Why don't we have more than two sexes?
Why does sex exist? And why aren't we all the same sex?
Could we shoot a laser to the moon?
Are machines better than humans at identifying faces?
Can anything travel faster than the speed of light? Drs Rutherford and Fry investigate.
Why don't children like vegetables?
How do bats echolocate? And why don't they get confused by neighbouring signals?
Why do we dream? Drs Rutherford and Fry delve into the science of sleep.
Why do we get static shocks? Our science sleuths try to crack another case.
Why do tunes get stuck in our heads? And what makes some songs stickier than others?
What would happen if the Earth's magnetic poles flipped?
How to make the perfect sponge using the power of science.
Can sound kill? Inspired by a Kate Bush song, we ask whether sonic weapons could work.
Why do we itch and should we scratch?
What is fire? Is it a solid, liquid or a gas? Adam Rutherford and Hannah Fry investigate.
The science sleuths investigate the question 'What's inside a black hole?'.
How do cats find their way back to their old home when they move house?
Why do we have different blood types? Drs Rutherford and Fry investigate.