Coriolis Effects
In physics, the Coriolis effect is a deflection of moving objects when the motion is described relative to a rotating reference frame. In a reference frame with clockwise rotation, the deflection is to the left of the motion of the object; in one with counter-clockwise rotation, the deflection is to the right.
Due to the relatively large size of planet, its motion is not directly felt by humans. However, the Earth’s clockwise rotation causes objects travelling in the Northern hemisphere to be deflected in a gentle clockwise direction in what is known as the Coriolis Force. As the Earth’s surface moves at a different rate relative to the atmosphere, a discrepancy between the rotation of the Earth’s and the movement of the atmosphere causes an object heading towards the north to pick up the energy of the Earth’s rotation, and begin to curve to the east. The opposite occurs in the southern hemisphere. As a result, navigation systems must compensate for the Coriolis Force to avoid deviation to the right or left of the target.
In the inertial frame of reference (upper part of the picture), the black ball moves in a straight line. However, the observer (red dot) who is standing in the rotating/non-inertial frame of reference (lower part of the picture) sees the object as following a curved path due to the Coriolis and centrifugal forces present in this frame.
Object moving frictionlessly over the surface of a very shallow parabolic dish. The object has been released in such a way that it follows an elliptical trajectory.
Left: The inertial point of view.
Right: The co-rotating point of view.
Source:- Wikipedia
In physics, the Coriolis effect is a deflection of moving objects when the motion is described relative to a rotating reference frame. In a reference frame with clockwise rotation, the deflection is to the left of the motion of the object; in one with counter-clockwise rotation, the deflection is to the right.
Due to the relatively large size of planet, its motion is not directly felt by humans. However, the Earth’s clockwise rotation causes objects travelling in the Northern hemisphere to be deflected in a gentle clockwise direction in what is known as the Coriolis Force. As the Earth’s surface moves at a different rate relative to the atmosphere, a discrepancy between the rotation of the Earth’s and the movement of the atmosphere causes an object heading towards the north to pick up the energy of the Earth’s rotation, and begin to curve to the east. The opposite occurs in the southern hemisphere. As a result, navigation systems must compensate for the Coriolis Force to avoid deviation to the right or left of the target.
In the inertial frame of reference (upper part of the picture), the black ball moves in a straight line. However, the observer (red dot) who is standing in the rotating/non-inertial frame of reference (lower part of the picture) sees the object as following a curved path due to the Coriolis and centrifugal forces present in this frame.
Left: The inertial point of view.
Right: The co-rotating point of view.
Source:- Wikipedia
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