We’ve all had to shake jars of nail polish, model paint, or cell cultures. Mixing paint is easy – but bacteria and cells need to be agitated for hours. Happily, laboratory tube tumblers automate this ...
Of all the skin-care and cosmetics products I recently bought online that turned out to be counterfeit, expired, used, or otherwise problematic, the one that still makes me squirm ...
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 ...
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