orbital motion


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orbital motion

[′ȯr·bəd·əl ′mō·shən]
(physics)
Continuous motion of a body in a closed path, such as a circle or an ellipse, about some point.
References in periodicals archive ?
Nevertheless, during this phase, orbital motion would result in more heating than linear motion, and therefore it will also result in more squeeze flow than linear motion.
However for a thrust bearing in which the top plate undergoes orbital motion couette velocity components in both the radial and tangential direction are present.
The observed contrast between the drag force histogram and the angular pulse position data indicates that the drag force is synchronized with the orbital motion of the thrust plate.
Copernicus showed that all that was required to explain the phenomena in the heavens was to put the sun in the center instead of the earth, attribute motion to the earth, that is, daily rotation on its axis and orbital motion around the sun.
Note that the coordinates given here relate to the radiants' positions at maximum: thanks to Earth's orbital motion around the Sun, the radiants appear to move eastwards by about a degree per day, and this should be taken into account if observing in, say, mid-November.
Orbital motion also allows the tool diameter to be smaller than the hole, which makes for efficient chip and heat extraction.
Also orbital vibration welding, a friction process that uses constant-velocity orbital motion to weld materials with as little as 30-mil part-to-part clearance; hot-plate welding, a direct thermal welding technique suitable for complex, irregular shapes (joint can be curved in all planes); spin welding suitable for circular parts with final orientation within 1[degrees], and thermal welding.
The latest addition to the Grant-bio product range, the PSU-20 platform shaker combines three mixing functions - orbital motion, reciprocation and vibration - into one easy to use benchtop unit.
The TTV technique is sensitive to planets in multiple systems down to the mass of the Earth, and can therefore be used to unveil the existence of non-transiting planets, that cause perturbations in the orbital motion of transiting planets.
Therefore, most of the system angular momentum is in the orbital motion of the S-stars.
In his exposition of Newton's method, Harper traces the steps by which Newton argued from the phenomenon of orbital motion to centripetal forces and then to universal gravity.
We are now in a new era of precision measurements of the size and orbital motion of giant planets around other stars, and our discoveries continue to defy expectations.