The sling psychrometer & hair hygrometer are used to determine the relative amount of this
In a Grimm tale, a group of aging animals set out for this town to become musicians
The Earth is surrounded by the magnetosphere, which is shaped by this particle stream
While recovering from an illness, P.L. Travers wrote her first stories about this magical British nursemaid
Your AC, air conditioning, probably runs on AC, this
Device that stealth aircraft technology is designed to trick
At the 1939 New York World's Fair, the robot Elektro was accompanied by Sparko, a robot one of these
The smallest units of information stored in a computer, they form bytes
In 1981 the Solar Challenger was a solar-powered plane & in 1977 the Gossamer Condor was powered by this
In 1949 this city became the capital of the Nationalist Chinese government