Reaction wheel

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(Mech.)

a water wheel driven by the reaction of water, usually one in which the water, entering it centrally, escapes at its periphery in a direction opposed to that of its motion by orifices at right angles, or inclined, to its radii.

See also: Reaction

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Barker's mill			The thrusters are used for making small corrections to the spacecraft's course, for some attitude control functions, and for making angular momentum adjustments in the reaction wheels, which also are used for attitude control. NASA's Cassini spacecraft successfully swaps thrusters by Asian News International Theory is supplemented by examples of actual spacecraft and description of spin, dual-spin, three axis active, reaction wheel, control movement gyro, gravity gradient, and magnetic control systems. Spacecraft attitude dynamics and control. (reprint, 1991) (CD-ROM ... by SciTech Book News During tests, engineers found that the satellite's reaction wheel, which is used to point the spacecraft in a specific direction, was emitting an unusually loud noise that was interfering with the Coast Guard's receiver signal The noise exceeded ORBCOMM's acceptable threshold and had to be fixed, Ingalsbe said. Technical glitches keep coast guard satellite grounded by National Defense			reach into reach one's nostrils reach out reach up reach-me-down reachable reachback Reacher reaches reaching Reachless reacquaint reacquire reacquired stock react reactance Reactance coil reactant reaction reaction chamber reaction engine reaction formation reaction propulsion reaction time reaction turbine Reaction wheel reaction-propulsion engine reactionary reactionism Reactionist reactivate reactivation reactive reactive depression reactive schizophrenia reactive thrust reactivity reactology reactor reactor core reactor vessel Read read back read between the lines read head read in read into Read method Read method of childbirth read off read on			Reaction Quake 3 Reaction rate Reaction rate Reaction rate Reaction Rate, Chemical Reaction rates reaction rim reaction series Reaction Smelting reaction specificity reaction specificity reaction specificity reaction specificity reaction specificity reaction time reaction time reaction time reaction time reaction time reaction time Reaction Time Human Reaction Time of Eye Movement Reaction to Diagnosis of Cancer Questionnaire Reaction to McCarthyism Reaction to McCarthyism reaction turbine reaction turbine Reaction Types Reaction Types Reaction Types Reaction wheel Reaction Wheel Assembly Reaction Wheel Assembly Module Reaction Wheel Electronics Reaction wheels Reaction wheels Reaction wood Reaction Yield Detected Magnetic Resonance reaction zone Reaction, Assistance, Intervention, Dissauder reaction, chemical reaction, chemical reaction, chemical reaction, heat Reaction, Stepwise Chemical reaction, stress Reaction-Bonded Aluminum Oxide Reaction-Bonded Silicon Carbide Reaction-Bonded Silicon Nitride Reaction-formation Reaction-formation Reaction-formation Reaction-Induced Difference Spectra Reaction-Induced Difference Spectroscopy Reaction-Limited Aggregation reaction-propulsion engine Reaction-Sintered Silicon Nitride reactionaries reactionaries reactionaries reactionary

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