Butterfly wings under the microscope show how different angles of incidence of light produce different colours.

This is what gives the wings their ethereal iridescence.

The image is by artist Linden Gledhill, who explores the physical world at different image scales and fragments of time.

He uses advanced microscopy and high-speed equipment to create unexpected imagery.

This image is part of Visual SG, which celebrates the splendour of science through spectacular visuals.

Running from July 22 to 31 at the Science Centre Singapore, Visual SG will feature workshops, forums, public lectures and artworks.

Highlights include the Inside Explorer, where people can virtually unwrap Neswaui - a wealthy Egyptian third-century priest - and use simulation technology to send a virtual kiss.