Pinger

Ping'er is an important character in the Chinese novel Dream of the Red Chamber. She is Wang Xifeng's chief maid and personal assistant/confidante, who follows her from the Wang family. Being the chief consultant of the household manager, Ping'er wields considerable power in the Jia household...

MDMA is an entactogenic drug of the phenethylamine and amphetamine class of drugs. In popular culture, MDMA has become widely known as "ecstasy" , usually referring to its street pill form, although this term may also include the presence of possible adulterants...

An underwater locator beacon or underwater acoustic beacon is a device fitted to aviation flight recorders such as the cockpit voice recorder and flight data recorder. ULBs are also sometimes required to be attached directly to an aircraft fuselage...