Colorchanging

Some foods and medicines, such as many COVID-19 vaccines, must be kept cold. As a step toward a robust, stable technique that could indicate when these products exceed safe limits, researchers in ACS Nano report a class of brilliantly…

The LG Gram line has been around for years, but the LG Gram Style adds a brand-new look. It’s ultralight, it’s ultrathin, and it’s covered in an iridescent, color-changing finish. It’s also available for purchase today, in 14-inch and…

Vivo’s first premium phone, the Y series, has been released. The Vivo Y100 is the newest model in the company’s low-cost Y series. Among other things, the smartphone sports a color-changing panel at the back, which Vivo has attempted before…

Imagine stretching a piece of film to reveal a hidden message. Or checking an arm band's color to gauge muscle mass. Or sporting a swimsuit that changes hue as you do laps. Such chameleon-like, color-shifting materials could be on the…

Realme has announced the Realme 9 Pro and Pro Plus, two new phones that now sit at the top of its extremely popular mid-range numbered series. We reviewed the 8 Pro last year and found it to be one of the best value phones available…

Vivo has announced the V23 and V23 Pro, the latest phones in the company’s mainstream V series that sells a ton in India and other Asian countries. The most unusual feature is the Sunshine Gold model’s ‘color-changing’ exterior that…

Detecting light beyond the visible red range of our eyes is hard to do, because infrared light carries so little energy compared to ambient heat at room temperature. This obscures infrared light unless specialised detectors are chilled to…