Ripples, like ones produced by raindrops falling in a puddle, are also called capillary waves. Studied since antiquity, they ...

When hills are healthy, vegetation anchors soil in place. But when that vegetation is burned off, hillsides become vulnerable ...

RARE freezing rain that’s “extremely hazardous” for planes and brings down trees is set to hit the UK in just days, the Met Office has warned. The dangerous downpours are ...