A 15-hour journey of both physical and emotional highs and lows, it promises exhilarating waves, a rocking boat, and an unforgettable experience for anyone willing to endure the ride. The ship ...

Called Kelvin Helmholtz, they resemble rolling ocean waves and similar patterns have ... BBC Weather said a layer of faster moving air at the top of the cloud causes the cloud tops to topple ...

Seismic waves are shock waves that propagate through Earth's layers after an earthquake or explosive event, traveling at different speeds depending on the density and state of the material.