By combining the language of groups with that of geometry and linear algebra, Marius Sophus Lie created one of math’s most ...

Physicists have long suspected that gravity might have a hidden quantum side, but for decades the idea has been more ...

Imagine standing on top of a mountain. From this vantage point, we can see picturesque valleys and majestic ridges below, and streams wind their way downhill. If a drop of rain falls somewhere on this ...