| 31. | Unlike eigenaxis fixed axis and maneuver rate rotations, ZPM rotations vary the rotation axis and maneuver rate during the maneuver.
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| 32. | Sarabauite is of the 2 / m crystal class; it has a 2 fold rotation axis perpendicular to a mirror plane.
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| 33. | Thus we can extract from any 3? rotation matrix a rotation axis and an angle, and these completely determine the rotation.
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| 34. | Any motion in / on the Earth causes a slowdown or speedup of the rotation, or a change of rotation axis.
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| 35. | The front face should lie precisely in the plane of the elevation rotation axis to minimize the required flat mirror aperture.
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| 36. | Monoclinic minerals contain a twofold rotation axis where they can be rotated 360?and have the crystal face repeat every 180?
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| 37. | "Spin " is a non classical property of elementary particles, since angular momenta of the object's constituents about the rotation axis.
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| 38. | As gyroscopes keep their rotation axis constant, angles measured in a gyro frame are equivalent to angles measured in the lab frame.
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| 39. | Where is the position vector of the particle ( radial from the rotation axis ) and the tangential velocity of the particle.
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| 40. | This can be done if the rotation axis can be unambiguously obtained from the combination of symmetry elements presented in the symbol.
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