Mixing paint is easy – but bacteria and cells need to be agitated for hours. Happily, laboratory tube tumblers automate this for us. The swishing action is handled with rotation. The vials are ...

Recent success for Welsh food and drink as it targets international markets ...

Even among that group, however, there's a difference of opinion about what's considered "too light." GIA uses lab-graded comparison stones to determine if the green color is dark enough and saturated ...

Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading ...