Maybe it expressed a sergeant’s snark toward the officer corps. Or a budding scientist’s thrill at a big find. Either way, the hand-lettered label that future Bates professor William H. Sawyer Jr.

The researchers dubbed the individual cells "microscopic tornadoes" for their rapid rotation, which both forms the crystals by drawing in other cells and then powers the crystals' own motion. Insects ...

Holographic microscope coupled with machine-learning software, which could be an inexpensive, point-of-care solution for hospitals and contamination screening of food industries worldwide, will be ...