Answers to Physics Questions

It was over to planetary geologist David Rothery

Aye up, duck!

How do they work?

And how to plasma balls work?

Chris Smith put this to physicist Jess Wade

Why does wearing wellies result in feeling pressure in a puddle, when going barefoot doesn't?

The whole panel joined in to tackle this listener question...

And how do they form?

Why is there so much distance between them?

...and how do we know?

Why does the sea feel warmer at night?

Is it possible to weigh things in space?

Dark matter exists all throughout the universe...right?

The quantum world is strange, so what are entangled particles?

Does light have a mass?

They're the stuff of sci-fi, but how do lasers actually work?

Things get very strange indeed inside a black hole, but what would Earth look like?

Sunsets on the red planet aren't what you'd expect...

It's like the reverse of asking a parent to select their favourite child...

Is there a better number to count in?

Is that even possible?!

And if so, how much light do we need?

Mathematician Bobby Seagull stuns us with stats.

It's not *that* bad, Cambridge University's Bobby Seagull explained why.