Light

12 June 2018

Does light have a mass?

12 June 2018

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

27 March 2018

And if so, how much light do we need?

05 December 2017

How big can star systems get?

08 August 2017

Can exposure to light change our body clock?

14 March 2017

When should you replace your bulbs: as they break or as soon as possible?

07 March 2017

What's the minimum number of photons our eye can detect?

10 January 2017

Soaps come in a variety of colours yet the bubbles are always white. Why?

24 October 2016

Why don't you get thrown backwards when you switch on your torch? Kerstin Göpfrich found out from Dr Anna Lombardi.

03 February 2015

We find out why petrol creates a rainbow effect when in contact with water, and how the behaviour of light can create...