Manu Prakash, Co-founder of Foldscope and Associate Professor at Stanford, shows how to couple your phone to a Foldscope. Photo credit: Stanford Bioengineering Department Young student assembling a ...

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 ...