Physics World Quiz: Device Used to Print Structural Colours

Physics World has published its weekly quiz, challenging readers to test their knowledge of recent developments in the field of physics. The specific question for this week focuses on a technological breakthrough involving the creation of 'structural colours.' Readers are asked to identify the specific device that physicists have successfully utilized to print these colours. Structural colouration is a phenomenon where color is produced by microscopically structured surfaces fine enough to interfere with visible light, rather than by pigments. This quiz serves as an engaging method for the publication's audience to stay updated with the latest scientific news and innovations. The article itself does not provide the answer directly but directs users to participate in the quiz to verify their understanding of current physics trends. It highlights the intersection of advanced physical research and practical applications in printing technology, inviting enthusiasts and professionals alike to reflect on recent experimental achievements in manipulating light and matter for visual effects.