battery-driven oscillator
31Nebulizer — In medicine, a nebulizer[1] (spelled nebuliser in British English)[2] is a device used to administer medication in the form of a mist inhaled into the lungs. A Jet nebulizer attached to a compressor. Nebuli …
32Digital clock — Basic digital alarm clock without a radio. The mark in the top left of the display indicates that the time is 4:00pm, not 4:00am …
33Optacon — The Optacon (OPtical to TActile CONverter)[1] is an electromechanical device that enables blind people to read printed material that has not been transcribed into Braille. Contents 1 Description 2 History …
34particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …
35Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
36Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
37Apple IIGS — Mac specs Introduced=September 1986 MSRP=999 CPU=65C816 CPUspeed=2.8 MHz OS=Apple ProDOS, Apple GS/OS RAM=256 KB or 1 MB (expandable up to 8 MB) RAMtype= Discontinued=December 1992The Apple sc|IIgs, the fifth model inception of the Apple II, was… …
38Mars Global Surveyor — Artist s conception of Mars Global Surveyor Operator NASA Major contractors Orbiter Satellite of …
39Motor-generator — Radio station motor generator set, converting from low to the high voltage power supply. This device is called an umformer in German. Dübendorf Museum of Military Aviation A motor generator (an M G set or a dynamotor for dynamo motor) is a device …
40watch — /woch/, v.i. 1. to be alertly on the lookout, look attentively, or observe, as to see what comes, is done, or happens: to watch while an experiment is performed. 2. to look or wait attentively and expectantly (usually fol. by for): to watch for a …
