Eight-year-old S. Hariraj is a Foldscope devotee. He's used it to look at the milk from the cows his parents raise. Though the milk looks creamy, the Foldscope reveals a world of microorganisms. "It ...

(Nanowerk Spotlight) The electron microscope has been humanity’s most important magnifying glass, since the first electron lens was invented in 1926 by Hans Busch. Just five years later, the first ...

Researchers have shown that consumer-grade 3D printers and low-cost materials can be used to produce multi-element optical ...