The action of rotating about an axis or center.
R otation is when a planet or moon turns all the way around or spins on its axis one time. The axis of rotation is an imaginary line going from the north pole to the south pole. When a planet or moon travels once around an object this is considered a revolution. On Earth, a rotation is pretty short-it happens once a day! It is the rotation that makes the sun appear to come up in the morning and set at night. On Earth, a revolution is quite a bit longer-one year! A sphere rotating about an axis. A rotation is a circular movement of an object around a center (or point) of rotation. A three-dimensional object always rotates around an imaginary line called a rotation axis. If the axis passes through the body's center of mass, the body is said to rotate upon itself, or spin. Rotation around any axis can be performed by taking a rotation around the x axis, followed by a rotation around the y axis, and followed by a rotation around the z axis. That is to say, any spatial rotation can be decomposed into a combination of principal rotations. A rotation is when the earth spins.It takes 24 hours to rotate fully one time. The side facing the sun is in daylight, the side facing away is in night. An interesting fact is that in order for us to experience 365 days in a year, the Earth has to rotate 366 times as it revolves around the sun in that year. The most common use of the term rotation in math is in geometry. It is a form of translation, which is motion. Rotation refers to spinning about an axis point and is m … easured in degrees, up to 360. It is often coupled with reflection to describe the motion of the object. Rotation is how an object spins on its axis, like a planet, or a baseball or tennis ball with spin on it. Revolution is how an object revolves around another object, like the … Earth around the Sun or a tether ball around the pole. 18 people found this useful. The most common use of the term rotation in math is in geometry. It is a form of translation, which is motion. Rotation refers to spinning about an axis point and is m … easured in degrees, up to 360. It is often coupled with reflection to describe the motion of the object. A rotation about an external point, e.g. the Earth about the Sun, is called a revolution or orbital revolution, typically when it is produced by gravity. Rotation around any axis can be performed by taking a rotation around the x axis, followed by a rotation around the y axis, and followed by a rotation around the z axis. That is to say, any spatial rotation can be decomposed into a combination of principal rotations. Full Definition of ROTATION. 1. a (1) : the action or process of rotating on or as if on an axis or center (2) : the act or an instance of rotating something b: one complete turn: the angular displacement required to return a rotating body or figure to its original orientation. 2. b: crop rotation. 3.  Rotation notation is usually denoted R(center, degrees).  1  Center  is the 'center of rotation.' This is the point around which you are performing your mathematical rotation.  2  Degrees  stands for how many degrees you should rotate. 3  A positive number usually by convention means counter clockwise. In math, a rotation lives up to its name! To rotate an object you need a center of rotation and how much you want to rotate it. By convention, positive rotations go counter clockwise, and negative rotations go Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise. The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past.
http://utahscience.oremjr.alpine.k12.ut.us/Sciber06/6th/moon/html/rotate.htm https://en.wikipedia.org/wiki/Rotation http://www.answers.com/Q/What_is_rotation http://www.answers.com/Q/What_is_rotation https://en.wikipedia.org/wiki/Rotation http://www.merriam-webster.com/dictionary/rotation http://www.mathwarehouse.com/transformations/rotations-in-math.php https://en.wikipedia.org/wiki/Earth%27s_rotation
what is rotation