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For example, if the right-hand rotor R is rotated n positions, the transformation becomes , where ρ is the cyclic permutation mapping A to B, B to C, and so forth. Similarly, the middle and left-hand rotors can be represented as j and k rotations of M and L. The encryption transformation can then be described as
When used in traffic, hand signals are often used to convey driver's intention of their next movement. In some countries, hand signals can apply to any vehicle whose signal lights are missing or damaged. Hand signals are commonly used and applies to cyclists and motorists. Hand signals are commonly used to signal a left turn, right turn ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. Directionality of traffic flow by jurisdiction Countries by direction of road traffic, c. 2020 Left-hand traffic Right-hand traffic No data Left-hand traffic (LHT) and right-hand traffic (RHT) are the practices, in bidirectional traffic, of keeping to the left side or to the right side ...
#3 moves section out to give space for #2 to cross over to #1's left wing; #3 moves section back to lead's right wing once #2 is done Fingertip right Echelon left Flight leader's right arm bent 90°, fist clenched, two arm pumps #3 moves section to #2's left wing, #4 crosses under #3 as the element is crossing under #2 Echelon left Fingertip ...
In this code it is coded as "234" which is a motion from the ready position to the left ("2"), followed by a motion from the left to the right ("3"), followed by a motion from the right to the left ("4"). Together these make the motions "left-right-left", the same as the General Service Code.
The effect is that the couples trade sides of the set. The older tradition, still prominent in some regions, begins the figure with a right-handed pull by rather than the dancers walking past one another (followed by the left-in-left of the courtesy turn, hence the term "right & left through"). Right Hand High, Left Hand Low
In minor movement, all signals are to be obeyed, both those of the left hand track and the right hand; signals controlling only minor movements are placed on the left. In counter-flow operation, some signals (light or otherwise) are specifically dedicated to minor movements and therefore are ignored by the trains travelling in major movement.
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