Archive for May 6th, 2008




cyclone

In meteorology, a cyclone is an area of low atmospheric pressure characterized by inward spiraling winds that rotate counter clockwise in the northern hemisphere and clockwise in the southern hemisphere of the Earth.  The generic term covers a wide variety of meteorological phenomena. These include tropical cyclones,and extratropical cyclones, so meteorologists rarely use “cyclone” without additional qualification.

Structure

There are a number of structural characteristics common to all cyclones. Their center is the area of lowest atmospheric pressure, often known in mature tropical and subtropical cyclones as the eye. Near the center, the pressure gradient force (from the pressure in the center of the cyclone compared to the pressure outside the cyclone) and the Coriolis force must be in an approximate balance, or the cyclone would collapse on itself as a result of the difference in pressure. The wind flow around a large cyclone is counterclockwise in the northern hemisphere and clockwise in the southern hemisphere as a result of the Coriolis effect (An anticyclone, on the other hand, rotates clockwise in the northern hemisphere, and counterclockwise in the southern hemisphere.)

 

Polar low over the Barents Sea on February 27, 1987

Polar low over the Barents Sea on February 27, 1987

A fictitious synoptic chart of an extratropical cyclone affecting the UK.  The blue arrows between isobars indicate the direction of the wind, while the

A fictitious synoptic chart of an extratropical cyclone affecting the UK. The blue arrows between isobars indicate the direction of the wind, while the “L” symbol denotes the centre of the “low”. Note the occluded, cold and warm frontal boundaries.

Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004

Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004

 

Cyclone on Mars, imaged by the Hubble Space Telescope

Cyclone on Mars, imaged by the Hubble Space Telescope

 

 

 

 

 

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How to Win Friends & Influence People

Building Personal Relationships

Never criticize, condemn or complain: People very rarely criticize themselves, no matter how wrong they may be. Your criticism will not be welcome. “I will speak ill of no man, and speak all the good I know of everybody.” – Ben Franklin Criticism puts others on the defensive, hurts self-esteem and builds resentment. Criticism is futile. Positive Reinforcement works better. Example: Reprimanding soldiers for not wearing their helmets is less effective than asking if the helmets are uncomfortable and reminding them that the hats were designed for their protection.Make the other person feel important.

People yearn to feel important and appreciated.

Continually recognizing someone’s expertise and capabilities will make them feel important. They will want to demonstrate their expertise by possibly helping you.“I am hearty in my approbation and lavish in my praise.” – Charles Schwab.

Give others clear authority over a part of a larger project and help them understand their tangible contributions. They’ll become more committed to the success of the project.

Be sincere and avoid flattery. However, obvious, over-the-top flattery can often win smiles and carry the same favor as if it were sincere.

Add a comment May 6, 2008

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