[Robert Murray-Smith] wanted to recreate how some ancient microscopes worked: with a drop of water as a lens. The idea is that the meniscus of a drop of water will work as a lens. This works because ...

Researchers have built a new microscopic imaging instrument that reveals a never-before-seen view of some of the smallest organisms in the world's oceans. WSJ's Monika Auger reports. Photo: Jaffe ...