what is meant by corriolis principle?

Answer 1

Christina is wrong. When you drop something, it is already rotating along with the earth, and continues to do so as it falls, for there is nothing to stop it.

In fact, the real Coriolis effect DEPENDS on the fact that an object dropped, or thrown, or shot out of a gun, is rotating along with the earth. Consider this. A spot on the equator is rotating eastward at about 1,000 miles per hour. Places north of that are rotating eastward slower than that. Places near the north pole are rotating eastward very slowly. A circle around the north pole having a circumfrence of 24 miles is rotating eastward at 1 mile per hour.

If you position a gun on the equator, the bullet contained therein is travelling eastward at 1,000 miles per hour, along with the gun. If you shoot the gun northward, the bullet wlil travel over land that is travelling eastward slower than 1,000 miles per hour. The bullet, however, will continue to travel eastward at 1,000 miles per hour because there is nothing to stop it. The bullet will appear to have an eastward force applied, but there is no such force.

Answer 2

The Coriolis effect is an apparent deflection of a moving object in a rotating frame of reference.
This effect is sometimes attributed to the fictitious Coriolis force.

The effect deflects objects moving along the surface of the Earth to the right in the Northern hemisphere and to the left in the Southern hemisphere. . Thats why winds around the center of a cyclone rotate counterclockwise on the northern hemisphere and clockwise on the southern hemisphere.

Answer 3

It is due to the fact that the Earth is spinning around its axis;
so, when you drop something, (you can only see that on things dropping long distances), it will not fall exactly in the spot below the dropping point, but a bit to the right (in the Northern hemisphere) or to the left (in the Southern hemisphere). This happens because between the moment of dropping and that of landing, the earth has spun a few degrees.

Answer 4

Try www.isa.org

Go to Technical Articles or reprints information section and write "coriolis mass flow measurement" in the seacrh window.

It will show you a list of articles and you can explore and pick the one you like best.

I found one : Coriolis; Twist and shout - that was pretty good.

Answer 5

Gaspard-Gustave Coriolis
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Gaspard-Gustave de Coriolis
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Gaspard-Gustave de Coriolis

Gaspard-Gustave de Coriolis or Gustave Coriolis (May 21, 1792–September 19, 1843), mathematician, mechanical engineer and scientist born in Paris, France. He is best known for his work on the Coriolis Effect.

In 1816 Coriolis became a tutor at the École Polytechnique. Here he carried out experiments on friction and hydraulics.

In 1829 Coriolis published a textbook, Calcul de l'Effet des Machines (Calculation of the Effect of Machines), which presented mechanics in a way that could be readily be applied by industry. In this period the correct expression for kinetic energy, \frac{1}{2}mv^2, and its relation to mechanical work became established.

During the following years Coriolis worked to extend the notion of kinetic energy and work to rotating systems. The first of his papers, Sur le principe des forces vives dans les mouvements relatifs des machines (On the principle of kinetic energy in the relative motion in machines), was read to the Académie des Sciences (Coriolis 1832). Three years later came the paper that would make his name famous, Sur les équations du mouvement relatif des systèmes de corps (On the equations of relative motion of a system of bodies (Coriolis 1835). Coriolis's papers do not deal with the atmosphere or even the rotation of the earth, but with the transfer of energy in rotating systems like waterwheels.

Coriolis's name began to appear in the meteorological literature at the end of the nineteenth century, although the term "Coriolis force" was not used until the beginning of the twentieth century. Today, the name Coriolis has become strongly associated with meteorology, but all major discoveries about the general circulation and the relation between the pressure and wind fields were made without knowledge about Gaspard Gustave Coriolis.

Coriolis died at the age of 51 in Paris.

[edit] Reference

* Persson, A., 1998 How do we Understand the Coriolis Force? Bull. Amer. Meteor. Soc. 79, 1373-1385.

http://en.wikipedia.org/wiki/Gaspard-Gustave_Coriolis

in classical mechanics, 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…

Coriolis force... (75 of 532 words)
http://www.britannica.com/eb/article-9026305/Coriolis-force

In 1829 Coriolis published a textbook, Calcul de l'Effet des Machines (Calculation of the Effect of Machines), which presented mechanics in a way that could be readily be applied by industry. In this period the correct expression for kinetic energy, \frac{1}{2}mv^2, and its relation to mechanical work became established.

During the following years Coriolis worked to extend the notion of kinetic energy and work to rotating systems. The first of his papers, Sur le principe des forces vives dans les mouvements relatifs des machines (On the principle of kinetic energy in the relative motion in machines), was read to the Académie des Sciences (Coriolis 1832). Three years later came the paper that would make his name famous, Sur les équations du mouvement relatif des systèmes de corps (On the equations of relative motion of a system of bodies (Coriolis 1835). Coriolis's papers do not deal with the atmosphere or even the rotation of the earth, but with the transfer of energy in rotating systems like waterwheels.

Coriolis's name began to appear in the meteorological literature at the end of the nineteenth century, although the term "Coriolis force" was not used until the beginning of the twentieth century.
http://www.answers.com/topic/gaspard-gustave-coriolis

The Coriolis effect is an apparent deflection of a moving object in a rotating frame of reference. This effect is sometimes attributed to the fictitious Coriolis force.

The Coriolis effect caused by the rotation of the Earth is responsible for the precession of a Foucault pendulum and for the direction of rotation of cyclones. In general, the effect deflects objects moving along the surface of the Earth to the right in the Northern hemisphere and to the left in the Southern hemisphere. As a consequence, winds around the center of a cyclone rotate counterclockwise on the northern hemisphere and clockwise on the southern hemisphere. However, contrary to popular belief, the Coriolis effect is not a determining factor in the rotation of water in toilets or bathtubs (see the Draining bathtubs/toilets section below).

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 Laplace in 1778.
http://en.wikipedia.org/wiki/Coriolis_effect