Strip the electrons off a stream of xenon gas atoms so that they become charged (ions).

BBC: Satellites have an electric future

At least 100 fish found dead in a stream off the River Usk in Powys died following the draining of a private fishing lake, say investigators.

BBC: Dead fish

But while Ruth seemed congenitally dour, Daphne had a quick smile and a sunny disposition, and most of the time she simply laughed off the steady stream of jibes about her pregnancy, accepted them as just a bit of fun being poked within the bounds of friendship and family.

NPR: One Boy's Heroism in the Face of AIDS