Coriolis effect is caused by an apparent force brought about by the rotation of the earth.This is further explained below.
Consider the hot air which rises in the tropics and spreads north and south towards the poles.Because of the earth's rotation,the air does not travel in a straight line but is deflected to the right in the northern hemisphere and to the left in the southern hemisphere.This is called the coriolis effect.This coriolis force varies with latitude and wind speed.It is maximum at the poles and zero at the equator.
This force can be illustrated as follows.
Start rotating a turn table(like that of a gramaphone).With a ruler and chalk piece,quickly draw a straight line from centre to the circumference.Stop the turn table.It is seen that the chalk line is not a straight line but a curve.This means that an apparent force causes the deflection in a sense opposite to that of the rotation .This apparent force is called the coriolis force and the effect is called the coriolis effect.
2007-12-23 04:03:11
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answer #1
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answered by Arasan 7
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The Coriolis effect is the apparent deflection of moving objects from a straight path when they are viewed from a rotating frame of reference. The effect is named after Gaspard-Gustave Coriolis, a French scientist who described it in 1835, though the mathematics appeared in the tidal equations of Pierre-Simon Laplace in 1778. One of the most notable examples is the deflection of winds moving along the surface of the Earth to the right of the direction of travel in the Northern hemisphere and to the left of the direction of travel in the Southern hemisphere. This effect is caused by the rotation of the Earth and is responsible for the direction of the rotation of large cyclones: winds around the center of a cyclone rotate counterclockwise on the northern hemisphere and clockwise on the southern hemisphere.
The Coriolis effect is caused by the Coriolis force, which appears in the equation of motion in a rotating frame of reference. Sometimes this force is called a fictitious force (or pseudo force), because it does not appear when the motion is expressed in an inertial frame of reference. In such a frame, the motion is explained by the real impressed forces, together with inertia. In a rotating frame, the Coriolis and centrifugal forces are needed in the equation to correctly describe the motion.
Contrary to popular belief, the Coriolis effect is not the determining factor in the rotation of water in toilets or bathtubs
2007-12-22 23:58:26
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answer #2
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answered by Anonymous
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Coriolis effect is an inertial force described by the 19th-century French engineer-mathematician Gustave-Gaspard Coriolis in 1835. Coriolis showed that, if the ordinary Newtonian laws of motion of bodies are to be used in a rotating frame of reference, an inertial force--acting to the right of the direction of body motion for counterclockwise rotation of the reference frame or to the left for clockwise rotation--must be included in the equations of motion.
The effect of the Coriolis force is an apparent deflection of the path of an object that moves within a rotating coordinate system. The object does not actually deviate from its path, but it appears to do so because of the motion of the coordinate system.
In simple terms, as air begins flowing from high to low pressure, the Earth rotates under it, making the wind follow a curved path. In the Northern Hemisphere, the wind turns to the right of its direction of motion. In the Southern Hemisphere, it turns to the left. The Coriolis force is zero at the equator.
You might be wondering: If the Coriolis force turns winds to the right in the Northern Hemisphere, why do winds go counterclockwise around large systems, such as hurricanes, north of the equator?
This happens because Coriolis is only one of the forces acting on air to cause winds. In simple terms, in the Northern Hemisphere, while the Coriolis force is pushing the wind toward the right, the pressure-gradient force, caused by air pressure differences, is pushing the air toward the center of the area of low pressure, and for various reasons is stronger then the Coriolis force.
2007-12-22 23:29:03
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answer #3
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answered by nan.sweety 3
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This Site Might Help You.
RE:
what is the Coriolis Effect?
can someone explain in a simple way and detailed way
2015-08-20 13:44:23
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answer #4
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answered by ? 1
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What Is The Coriolis Effect
2016-06-25 13:02:28
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answer #5
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answered by haley 4
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http://abyss.uoregon.edu/~js/glossary/coriolis_effect.html
look at the diagrams,
the path of the object remains the same at all times, but since the earth has rotated in the second diagram, it appears as if the object has begun going a bit more to the left, although it always goes in the same direction
2007-12-22 23:30:53
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answer #6
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answered by Anonymous
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I like turtles
2016-05-12 13:26:04
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answer #7
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answered by martha 1
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what is it! tele in a simple way please
2015-10-02 14:23:11
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answer #8
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answered by Rod B 1
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