When we see from the top, the circular rotation. This page was last updated June 28, 2015. counter clockwise the is rotation or movement of an object which is in the opposite direction of any clock. If this triangle is rotated 90° counterclockwise. (-y, x) Example 1 : Let F (-4, -2), G (-2, -2) and H (-3, 1) be the three vertices of a triangle. What this means, by the way, is that if mechanical clocks had originated in the southern hemisphere, the ones we use today would probably go around in the other direction! When we rotate a figure of 90 degrees counterclockwise, each point of the given figure has to be changed from (x, y) to (-y, x) and graph the rotated figure. With mechanical clocks, you could of course make them go around either way, but the earliest ones were presumably designed to turn the same way the shadows on a sundial do, simply because that's what people were used to. Therefore, if you build a sundial to tell time, the shadows will move across it in a clockwise direction. Howard St., Niles IL 60714 USA, retrieved 2017/07. In the northern hemisphere, the earth rotates counter-clockwise, which means that from our point of view the sun appears to move across the sky in a clockwise directon. Purple to yellow rotate counter-clockwise For an example of electric motor wiring that includes wiring to select electric motor speed options as well as direction of rotation see live link on the topic page I cited Dayton Electric Motor Wiring Diagram PDF, Dayton Electric Mfg. The reason that clocks turn clockwise has to do with sundials, which were the first clocks. Search: 180 Degree Counterclockwise Rotation. If you looked at them from the South Pole, they would appear to turn clockwise. Set goals and get predicted insights based on performance. See counter clockwise direction stock video clips.

Why do the Earth and Moon turn counter-clockwise and our clocks turn clockwise?įirst of all, the Earth and Moon only turn counter-clockwise when viewed from a certain perspective: above the North Pole. 384 counter clockwise direction stock photos, vectors, and illustrations are available royalty-free.

Counter clockwise direction