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The Magic Cafe Forum Index » » Not very magical, still... » » What causes the Wind? (0 Likes) Printer Friendly Version

BroDavid
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America’s North Coast, Ohio
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I know that many will immediately toss out a quip of some sort or another, but bear with me on this one.

After many years of observation, and at my age, finding that trees are one of the few living things that are older than I am, I have noticed something very interesting about trees:

I also have oftened wondered where the wind comes from. But have you ever noticed that whenever there is wind, the trees are moving back and forth. And with a lot of wind, they move a lot!

AHA! Therefore; the only logical conclusion is that the wind is caused by the tress moving back and forth (sort of like hte wind produced as you wave a fan).

It might be that changes in temperature cause the trunks to expand and contract, theby creating the back and forth motion, and producing the wind.

But clearly, wind is the result of trees moving back and forth.

I just thought I would share my observation and attendant logic with all of you.

Another mystery of life, solved by simply by practical observation and personal life experience!!
Smile

BroDavid
If you stand for nothing, you will fall for anything.
Dan Farmer
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Northern Nevada
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Hrm...reminds me of Zeno's paradox. It's a mathamatical riddle of sorts that states that motion is impossible. "One person says the flag is moving, one person says the wind is moving; a sage wanders by and says 'Not wind, not flag, the mind is moving'" I could talk about Zeno's proofs that motion is impossible but it's quite mind bending.

As far as the wind goes, I'm not sure if you can argue it or not but it is widely held that at it's most basic level the wind is caused by heat from the sun heating the earth unevenly. Thus, hot air rising and cold air lowering which are called Adiabatic processes if I remember correctly. So uneven heating causes air currents (The shifting masses you hear about on the news). Then to put one final spin on it (pun intended) the coriolis effect is caused by the rotation of the earth and puts an opposite spin on wind direction for the northern and southern halves of the planet.

-Dan
Bernard Sim
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Singapore
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I vaguely remember someone telling me a few years ago that wind is caused by air moving from a high pressure place to a low pressure place. Smile
Bernard Sim
Dan Farmer
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Quote:
I vaguely remember someone telling me a few years ago that wind is caused by air moving from a high pressure place to a low pressure place

That's part of the adiabatic processes, I should point out that I could go into a lot of gory detail I was just trying to be brief (maybe I failed).

-Dan
P T Flea
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Engelfield Green, nr Staines - innit
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Quote:
As far as the wind goes, I'm not sure if you can argue it or not but it is widely held that at it's most basic level the wind is caused by heat from the sun heating the earth unevenly. Thus, hot air rising and cold air lowering which are called Adiabatic processes if I remember correctly. So uneven heating causes air currents (The shifting masses you hear about on the news). Then to put one final spin on it (pun intended) the coriolis effect is caused by the rotation of the earth and puts an opposite spin on wind direction for the northern and southern halves of the planet.



The processes of rising and sinking are not strictly known as Adiabatic processes but are Adiabatic processes in themselves. That is to say Adiabatic processes is not another name for the rising and sinking of warm and cold air. I am not sure whether that's what you meant. An Adiabatic processes is simply one where no heat energy is exchanged with the surroundings. For example an adiabatic flow of exhaust gases down a rocket nozzle (a purely theoretical process) would mean none of the thermal energy of the gases was exchanged with the surrounding material.
This probably doesn't help with the orginal question. But here's a thought if you are experiecing a cyclonic weather condition (or depression) and stand with your face to the wind, hold out your left arm and that will always point to low pressure.
One final point, I am not sure that the Coriolis effect has a direct effect on local wind directions. I believe it's effects are on a more of a macroscopic scale.

Cheers

PT
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Good judgement comes from bad experience, and a lot of that comes from
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Dan Farmer
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I should have been more clear, I figured I was already getting into too much detail Smile As for the coriolis effect I'm not entirely sure on it either Smile So either way. Thanks for clarifying some of my foggier points.

-Dan
Greg Arce
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What causes the wind? In my case, Taco Bell. Smile Smile Smile
Greg
One of my favorite quotes: "A critic is a legless man who teaches running."
McCritical
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Quote:
On 2002-07-10 12:03, BroDavid wrote:
But clearly, wind is the result of trees moving back and forth.
BroDavid


Hurricanes, on the other hand, are caused by butterfly wings.
P T Flea
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Engelfield Green, nr Staines - innit
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You talking about Chaos theory?
Good judgement comes from bad experience, and a lot of that comes from
bad judgement.
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Ray Haddad
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Mansfield Center, Connecticut
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There are several other mysteries of life to ponder. For example, light bulbs are not light generators. They are suckers of darkness. When it is dark, an activated light bulb will suck in over 2000 times is weight in darkness.

A door can trap darkness in a room or even a refrigerator. When you open the door, darkness spills out and the room or refrigerator becomes filled with light. Darkness moves as fast as light does but in the opposite direction.

Someone once hooked up my car battery backwards. My horn sucked, my radio listened and my lights cast a shadow. This, to me, proves that entropy can be reversed and the universe can be saved.

Best,
Ray
Illusionist
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Earth
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"Someone once hooked up my car battery backwards. My horn sucked, my radio listened and my lights cast a shadow."

That would be a cool magic trick!!


Mmm...beer Smile
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