WIND

WHY DOES WIND EXIST???
Wind is caused by differences in the atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds. On a rotating planet, air will also be deflected by the Coriolis effect, except exactly on the equator.

WHAT IS THE PHYSICS OF THE WIND???
When this air is heated up by the sun, it rises and is replaced by new cool air that rushes in. Usually, wind blows from areas of high pressure to areas of low pressure. The Coriolis Effect is the curve of the winds to the right or left due to the spin of the earth.


GOOD EFFECTS OF WIND???
Wind energy comes from the sun. As solar radiation heats the earth’s surface, hot air rises and cool air fills the voids. This air movement is defined as wind energy. Wind that is harnessed via mechanical means is also referred to as wind energy.


BAD EFFECTS OF WIND???
Most of us know how powerful wind is and how devastating it can be when unleashed in vulnerable areas. But wind is also a valuable source of kinetic energy. Humans have harnessed energy from the wind for centuries. We’ve all seen the picturesque windmills gently turning in colorful tulip fields in Holland. Windmills have historically been used to pump water or grind grain and are still used for those purposes. But the more modern windmills that use a wind turbine are able to generate electricity.

CYCLONE COOK




Cyclone Cook Was very destructive. Heavy rain, bringing possible flooding, and strong winds are forecast in eastern Marlborough, Kaikoura and Banks Peninsula, before easing in the afternoon, as Cyclone Cook continues south off the east coast of the South Island.