Smoke rings are being seen in a new light. Doughnut-shaped structures called vortex rings are sometimes seen swirling through fluids. Smokers can form them with their mouths, volcanoes can spit them ...

The security company is partnering with Kidde to bring smart smoke and CO monitoring to its app. The security company is partnering with Kidde to bring smart smoke and CO monitoring to its app. Ring ...

Better understanding the formation of swirling, ring-shaped disturbances -- known as vortex rings -- could help nuclear fusion researchers compress fuel more efficiently, bringing it closer to ...