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Typically, a new logfile is created periodically, and the old logfile is renamed by appending a "1" to the name. Each time a new log file is started, the numbers in the file names of old logfiles are increased by one, so the files "rotate" through the numbers (thus the name "log rotation").
Cycloramic is an iOS and Windows Phone application that makes the Apple iPhone and Compatible Windows Phones rotate 360 degrees without user intervention. It switches the phone's vibrator at a specific (undisclosed) frequency to make the phone spin around its vertical axis and track the rotation angle using the gyroscope, compass and accelerometer while taking panoramic images.
Video of the propeller of a Bombardier Q400 taken with a digital camera showing the wagon-wheel effect Video of a spinning, patterned paper disc. At a certain speed the sets of spokes appear to slow and rotate in opposite directions.
[240] [241] [242] In November 2010, a video of the Turkish politician Deniz Baykal caused the site to be blocked again briefly, and the site was threatened with a new shutdown if it did not remove the video. [243] During the two and a half-year block of YouTube, the video-sharing website remained the eighth-most-accessed site in Turkey.
The rotation is acting to rotate an object counterclockwise through an angle θ about the origin; see below for details. Composition of rotations sums their angles modulo 1 turn, which implies that all two-dimensional rotations about the same point commute. Rotations about different points, in general, do not commute.
Rotation formalisms are focused on proper (orientation-preserving) motions of the Euclidean space with one fixed point, that a rotation refers to.Although physical motions with a fixed point are an important case (such as ones described in the center-of-mass frame, or motions of a joint), this approach creates a knowledge about all motions.
Rotation around a fixed axis or axial rotation is a special case of rotational motion around an axis of rotation fixed, stationary, or static in three-dimensional space.This type of motion excludes the possibility of the instantaneous axis of rotation changing its orientation and cannot describe such phenomena as wobbling or precession.
However, not all n-tuples have n distinct circular shifts. For instance, the 4-tuple ( a , b , a , b ) only has 2 distinct circular shifts. The number of distinct circular shifts of an n -tuple is n k {\displaystyle {\frac {n}{k}}} , where k is a divisor of n , indicating the maximal number of repeats over all subpatterns.