Galen of Pergamos was a physician with a practice in second-century Rome. Among his clientele was the Roman Emperor Marcus Aurelius. Galen was also a prolific scribbler, so we know a lot about his ...

To create more efficient catalysts, scientists would like to start with porous materials with controlled atomic-scale structures as random defects can hamper performance. Now a team has created a ...

Experiments with a new three-dimensional model of liver tissue find that the toxic effects of nanoparticles are reduced when compared with tests that use two-dimensional models. Cells reside in a ...

There are many dimensions to nature, and I have become partial to one in particular. I call it the “third dimension.” “What is that,” you might ask? It’s that special time when imagination takes over ...