The liquid turns a greenish-blue color. This color change tells you that the detergent contains a type of chemical called a base. The indicator solution contains molecules called pigment molecules ...

Discover how a simple online test can reveal whether you perceive colors as blue or green and why monitor calibration is ...

Danish Blue should be white, with greenish blue veins, although these are less numerous than in other blue cheeses such as gorgonzola or roquefort. Small holes in the rind of the cheese itself are ...

Summer is here, and while water enthusiasts and pets enjoy swimming and boating when the weather is calm and sunny, these conditions are also perfect for growing blue-green algae, which can be ...