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Why Wind Blows

Wind isn't always so friendly.
Wind isn't always so friendly.
This instrument measures wind speed.
Anemometer

A long time ago the Greeks thought wind was the breath of gods. They were happy with this explanation until the philosopher Anaximander realized there was a scientific explanation. I'm sure your teacher would agree with him. Here are a few facts you need to know about wind.

Breathe of Fresh Air

Without wind, we wouldn't have any change in the weather. That means no snowmen, no tans and no singing in the rain. Wind is air moving horizontally. It's the result of air movement over the Earth. Air moves because of pressure systems - it travels from areas of high pressure to areas of low pressure. The two reasons these pressures change around the earth are:
1. Earth Moves: As Earth moves, it drags the atmosphere around with it, which causes the air to mix with the higher level atmosphere. This creates turbulence and pressure systems.
2. The Sun's Heat: The air around Earth changes temperature all over, depending on the time of day. As the air warms up, it rises. In polar regions where the sunlight spreads over a greater area, the result is less warm air. This means the air over the poles is denser than the air over the equator.

As air rises, low pressure areas are created below. Air in high pressure areas then rushes to fill in the gap. If there's a big difference between the pressure, the flow of air between the two points will be stronger.

Measurements

Wind speed is measured by an instrument called an anemometer. It has three cups that catch the wind and causes the instrument to rotate. To make the wind speed official, the anemometer has to be 30 feet above ground. Downtown areas can be just as windy as the tops of mountains. Tall buildings on either side of the street can channel the wind, forcing it to blow much faster. The world record for the highest wind speed is 231 miles per hour. This was at the summit of Mt. Washington in New Hampshire.

Name that Wind

Some reoccurring winds have been named by meteorologists (scientists who study weather.) Here are a few wind names and a brief description of that wind.
Blue Norther: An arctic cold front moving into Texas.
Knik: A fast moving wind from the southeast to Palmer, Alaska.
Northeaster (also called Nor'easter): A strong wind linked with major storms and winter weather along the mid-Atlantic and New England areas. Squall:Most of the time, it's a sudden and violent wind caused by many continuous thunderstorms - usually over water. It can be over 100 miles long and bring rain and hail.
Chinook Wind: A warm dry wind that blows from the sea in some regions of the Pacific Northwest that causes a rapid rise in temperature.
Trade Wind: A wind blowing constantly in one direction. These winds mostly happen in the tropics.
Gale Warning: When winds reach between 32 and 53 miles per hour, the National Weather Services gives this warning.
Storm/Hurricane Warning: When winds reach between 54 and 74 miles per hour the National Weather Services also issue this warning.

Do you have any windy day stories? about it.

Related Stories:
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Comments

JennyD

JennyD wrote:

the wind..
commented: Thu Aug 22, 2013

afiacutie123

afiacutie123 wrote:

i read it and it was boring sorry
commented: Thu Aug 22, 2013

there are 2 more comments

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american_brit
american_brit posted in Debating:
"Crisanna" wrote:AlphaT: it's not even living yet, it doesn't have a heart beat! If you take a pregnancy test, it shows positive, and then you go to a feminine doctor to make sure, do you get an ultrasound? No because you won't find a heartbeat. You get a blood test, or maybe even a pee sample. A child heart's start beating after 22 days of conception. A women does not have an abortion before 22 days (or even right after). It's extremely dangerous. 
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Crisanna
Crisanna posted in Debating:
"Teh_Skittlez" wrote: "Crisanna" wrote: AlphaT: it's not even living yet, it doesn't have a heart beat! If you take a pregnancy test, it shows positive, and then you go to a feminine doctor to make sure, do you get an ultrasound? No because you won't find a heartbeat. You get a blood test, or maybe even a ##### sample. Heartbeat is not the measure of living or not living. Many organisms don't even have hearts. It is 'alive', but not conscious. I think that's the more important distinction.  Yes this is true. But let me put it this way. Let's say a 13 year old girl got pregnant against her will. She, and her baby, may not make it through the birth. And with the possibilty of her death and the baby's, you'll still say that she can not get an abortion? That is just not right.
reply 1 minute
Teh_Skittlez
Teh_Skittlez posted in Debating:
"AlphaT" wrote: "Teh_Skittlez" wrote: Which is why I made the ant comparison. All living things have some value, and killing any of them is morally wrong. However, we do not treat all death or all killing the same way, and I do not believe that locking people in prison for abortion is going to resolve the fact that sometimes women will try to get rid of their pregnancies.   With all crime, making it illegal will not resolve it. But it will slim down immensely. Okay but now we're imprisoning otherwise productive members of society, for the goal of 'sending a message' that society doesn't approve of abortion. I think that's rather totalitarian. 
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-Karpov-
-Karpov- posted in Debating:
"AlphaT" wrote: "Teh_Skittlez" wrote: Which is why I made the ant comparison. All living things have some value, and killing any of them is morally wrong. However, we do not treat all death or all killing the same way, and I do not believe that locking people in prison for abortion is going to resolve the fact that sometimes women will try to get rid of their pregnancies.   With all crime, making it illegal will not resolve it. But it will slim down immensely. That's definitely NOT how crime works. When you make something illegal that people want you just create an unsafe market for it. Prohibition is the best example of this 
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Teh_Skittlez
Teh_Skittlez posted in Debating:
"american_brit" wrote:   Teh_Skittlez,  I don't believe the argument is whether or not women should be punished.   If abortion is illegal, is that not presumably what would be happening? 
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