Scientists observed and reported how vortex rings, swirling donut-shaped masses, move through water and reach air without ...

This prototype uses water cooling, PTFE rings, and 3D‑printed mounts to turn 200‑year‑old heat‑engine tech into a ...

This close cousin of the Optimus S is mostly similar. This CDMA smartphone is notable for including a mobile hotspot feature that lets nearby Wi-Fi devices share the phone's Internet ...