If you've ever dreamed of having a technicolour dreamcoat, a new colour-changing material could make it possible.

Developed by David Snoswell at Cambridge University and his team, the polymer changes colour with viewing angle or when stretched. In this video, you can see it take on various metallic hues or watch embedded patterns appear in contrasting colours. When light is shined through a superthin sample, bending the material causes it to change hue.