China’s “zero-Covid” policy relies heavily on mobile phone apps that display a health code in one of three “traffic light” colors: red, yellow, or green. Users install the apps via WeChat or Alipay, ...

The science behind colors is fascinating, and it is the unique way they interact with our eyes and the environment that decides how to best apply them. Take, for example, the traffic lights, or danger ...

Smoke from Canadian wildfires has impacted the air quality throughout United States, including in the northern High Plains, Midwest, Great Lakes, southern Mid-Atlantic and into the Northeast. This has ...

Hospitals often use code names to alert staff to an emergency. Code blue means a medical emergency. Code red means fire or smoke. Code black typically means there is a bomb threat. Hospitals are the ...

Homeroom's staff has three code words: yellow, orange and red. Chrissel Orcino had a "code red" at one of her tables. When Orcino, a server at the Oakland, California, restaurant Homeroom, went to ...

It occurred to me that when someone reads my articles or those of another contributor, we often times use terminology that may not be understood fully and thus the thrust of the point gets lost.

Hospitals use color codes to communicate emergencies quickly and discreetly. Each color code represents a different type of ...

The 2022 Chevrolet Spark sees very few changes and updates, including three new exterior colors: Crimson, Blue Glow, and Nitro Yellow. Here's our first look at the new yellow hue. Assigned color code ...