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Squirrel Cage
Squirrel-cage may refer to: *a squirrel-cage rotor *a squirrel-cage fan, another name for a centrifugal fan *a hamster wheel A hamster wheel or running wheel is an exercise device used primarily by hamsters and other rodents, but also by other Cursorial, cursorial animals when given the opportunity. Most of these devices consist of a runged or ridged wheel held on a ... *"Squirrel Cage", a short story by Robert Sheckley *"The Squirrel Cage", a short story by Thomas M. Disch {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squirrel-cage Rotor
A squirrel-cage rotor is the rotating part of the common squirrel-cage induction motor. It consists of a cylinder of steel laminations, with aluminum or copper conductors cast in its surface. In operation, the non-rotating stator winding is connected to an alternating current power source; the alternating current in the stator produces a rotating magnetic field. The rotor winding has current induced in it by the stator field, as happens in a transformer, except that the current in the rotor is varying at the stator field rotation rate minus the physical rotation rate. The interaction of the magnetic fields in the stator and the currents in the rotor produce a torque on the rotor. By adjusting the shape of the bars in the rotor, the speed-torque characteristics of the motor can be changed, to minimize starting current or to maximize low-speed torque, for example. Squirrel-cage induction motors are very prevalent in industry, in sizes from below up to tens of megawatts (te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrifugal Fan
A centrifugal fan is a mechanical device for moving air or other gases in a direction perpendicular to the axis of rotation of the fan. Centrifugal fans often contain a ducted fan, ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel). Tiny ones used in computers are sometimes called biscuit blowers. These fans move air from the rotating inlet of the fan to an outlet. They are typically used in ducted applications to either draw air through ductwork/heat exchanger, or push air through similar impellers. Compared to standard axial fans, they can provide similar air movement from a smaller fan package, and overcome higher Fluid dynamics, resistance in air streams. Centrifugal fans use the kinetic energy of the impellers to move the air stream, which in turn moves against the resistance caused by ducts, dampers and other components. Centrifu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamster Wheel
A hamster wheel or running wheel is an exercise device used primarily by hamsters and other rodents, but also by other Cursorial, cursorial animals when given the opportunity. Most of these devices consist of a runged or ridged wheel held on a stand by a single or pair of stub axles. Hamster wheels allow rodents to run even when their space is confined. The earliest dated use of the term "hamster wheel", located by the Oxford English Dictionary, is in a 1949 newspaper advertisement. Squirrel cages featured in an 1885 catalog by Osborn Manufacturing Co''.'' came with running wheels for the squirrels, similar to hamster wheels. Preferences Preference test, Choice tests with Syrian hamsters (''Mesocricetus auratus'') have shown that they prefer larger wheels; the animals chose a wheel diameter of over , which itself was preferred over . Hamsters showed no preference between a relatively uniform running surface made of plastic mesh and a surface made of rungs spaced 9 mm apar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Sheckley Short Stories Bibliography
This article presents an incomplete list of short stories by Robert Sheckley, arranged alphabetically by title. Short stories * "A Strange but Familiar Country" (2002, BIGNews (also on Internet) 2002/9) * "A Supplicant in Space" (1973, '' The Robot Who Looked Like Me'') *A Thief in Time (1954, '' Citizen in Space'') *A Ticket to Tranai (1955, ''Citizen in Space'') * "A Trick Worth Two of That" (2001, '' Uncanny Tales'') *A Wind Is Rising (1957, '' Notions: Unlimited'') * "An Infinity of Angels" (2001, Official Angel Website (Internet)) * "Accept No Substitutes" (1958, Infinity SF 1958/3) * "Agamemnon's Run" (2002, ''Uncanny Tales'') * "Alien Starswarm" (1990?, Portland, OR: DimeNovels 1990) * "Aliens: Alien Harvest" (1995?, Bantam Spectra 1995) - see Aliens (novel series) *All the Things You Are (1956, '' Pilgrimage to Earth'') * "Alone at Last" (1957, '' Shards of Space'') * "Amsterdam Diary" (1989?, Semiotext(e) #14 1989) * "Ask a Foolish Question" (1953, ''Citizen in Space'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
