When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Sean Anthony Eddy via Getty Images A microscope’s job is to magnify the minuscule world ...

YEAST CELLS — Brewing yeast cells are seen under a microscope as part of a study on nonalcoholic beer. Credit must be given to the creator. Only noncommercial uses of the work are permitted.

Look at blood smeared across a slide under a microscope, and you see a mystery revealed. The ruby-colored, vital, fluid of life we call blood is made of lots of stuff. There is the liquid plasma that ...