Discover the surprising design differences between the engines of the Boeing 747-8 and 787 Dreamliner, and how they impact performance.

The next soldier will not bleed, will not tire, and will not hesitate. It is already being built, and the race to send it to war is underway.

Vibrations in the ground are found everywhere. They occur when cars pass by, when machines are operating, or when the earth’s crust moves. For most of us, these are invisible forces. For researchers, ...