I'm Dr Adam Rutherford. And I'm Dr Hannah Fry. And you are going to send us your everyday

mysteries. And we are going to investigate them using the power of science. Science. I like it.

And that's all for today's curious cases. Join us next week.

Hello.

Hang on. We appear to have traveled into the future here, Adam.

You need to come back to the beginning of the programme.

Hold on. This can only mean that we have succeeded in today's quest to travel faster than the speed of light.

And to warn you this week, we are going to be grappling with Einstein's special theory of

relativity and Jim Ackley's box of shorts. Enjoy!

Hi.

Are rather enlightening cases for us to investigate today?

Yes, Ali Arshary, who lives in Ketif in Saudi Arabia, sent in this question to curious

cases at BBC.co.uk.

We often read that the fastest thing in the universe is the speed of light. Now, why do we have this

limitation and can anything possibly be faster? Have you ever stopped to think about what life would

be like if suddenly all of the lights went out? Yeah, well, we wouldn't last very long,

because plants wouldn't grow, so we'd starve. Oxygen wouldn't be replenished, so we would suffocate.

And eventually, one of our energy supplies would dry up.

And we'd be deffened by the incescent hooting of owls. Indeed we would.

But let's start by going back, because it's a curious tale of how we came to illuminate the secrets of light.

Greek mega mathematician Euclid in 300 BCE believed that our eyes fire infinitely fast

particles that light up everything in their path, and that is how we see.

...