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gravity assist

   Also found in: Acronyms, Wikipedia 0.01 sec.
gravity assist
n.
The use of the energy obtained from a gravitational field to change the speed or shape of a spacecraft's orbit.
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The swingpast could also shed light on a curiosity first spotted in 1990: spacecraft get a tiny, unexpected acceleration, of just a few millimetres (fractions of an inch) per second, in a gravity assist.
Europe's comet chaser makes last call home by AFP / AFP Global Edition
This will be the third Earth swing by, the last of Rosetta's four planetary gravity assists.
Comet chaser Rosetta to make final swing by Earth on November 13 by Asian News International
Additionally, the confounding effect gravity has on isokinetic torque measurements has traditionally been dealt with by adding the torque due to gravity of a system when the motion requires movement against gravity and the subtraction of torque due to gravity on a system when gravity assists a motion (Nelson and Duncan, 1983).
The effects of kinetic energy on concentric and eccentric isokinetic ... by Boggess, Brian; Moffit, Jeff; Morales, Jacobo; Anderson, Tim / Journal of Sports Science and Medicine
 
 
 
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