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PinkFloyd
10-25-2006, 01:35 PM
You have a nice level stream or creek... We're not including a good sized river here... Even if the stream or creek has 6 inches of water, why does it just run one way???

Living here in the country, there are streams and creeks everywhere... Some have maybe 5 feet of water and some have only afew inches, but they still flow in one direction...


What scientific reason makes a small stream or creek move ??? Since it's level, why doesn't it stand still ??? Is it gravity or what???


:shrug: :shrug: :shrug: :shrug: :shrug: :shrug: :shrug: :shrug:

FAX
10-25-2006, 01:38 PM
This is just a wild guess, Mr. Pinkfloyd, but I think maybe the water is trying to get as far away from Denver as possible.

FAX

NewChief
10-25-2006, 01:39 PM
It's magic!

Baby Lee
10-25-2006, 01:41 PM
You have a nice level stream or creek... We're not including a good sized river here... Even if the stream or creek has 6 inches of water, why does it just run one way???

Living here in the country, there are streams and creeks everywhere... Some have maybe 5 feet of water and some have only afew inches, but they still flow in one direction...


What scientific reason makes a small stream or creek move ??? Since it's level, why doesn't it stand still ??? Is it gravity or what???


:shrug: :shrug: :shrug: :shrug: :shrug: :shrug: :shrug: :shrug:
1. It's not perfectly level.
2. It's not level over the entire course of the stream.

So the stream is supplied with water from disparate sources, and the stream constitutes a fluid body from it's inception to it's termination. The termination is at a point lower than the rest of the route, overall, and the forces of gravity send the water to that low point, and all water upstream of that low/termination point, moves in a unified manner and direction to replace the displaced volume.

milkman
10-25-2006, 01:42 PM
It's because Denver blows and Oakland sucks.

Warrior5
10-25-2006, 01:43 PM
You have a nice level stream or creek... We're not including a good sized river here... Even if the stream or creek has 6 inches of water, why does it just run one way???

Living here in the country, there are streams and creeks everywhere... Some have maybe 5 feet of water and some have only afew inches, but they still flow in one direction...


What scientific reason makes a small stream or creek move ??? Since it's level, why doesn't it stand still ??? Is it gravity or what???


:shrug: :shrug: :shrug: :shrug: :shrug: :shrug: :shrug: :shrug:

Higher pressure upstream and lower pressure downstream.

PinkFloyd
10-25-2006, 01:46 PM
1. It's not perfectly level.
2. It's not level over the entire course of the stream.

So the stream is supplied with water from disparate sources, and the stream constitutes a fluid body from it's inception to it's termination. The termination is at a point lower than the rest of the route, overall, and the forces of gravity send the water to that low point, and all water upstream of that low/termination point, moves in a unified manner and direction to replace the displaced volume.






:hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm:

Your saying one end of the stream is higher than the other... Even if it's 500 miles long ??? Sounds good to me...


I also like the Denver - Oakland ideas... ROFL

Fire Me Boy!
10-25-2006, 01:47 PM
Water seeks its own level till equibrium is atained.

Rain Man
10-25-2006, 01:49 PM
I'll go with Baby Lee's explanation, but to be really thorough I would also want to add the following forces:

1. Lunar gravity
2. Disruptions caused by swimming fish
3. Thermodynamic forces caused by tectonics and solar radiation
4. Wind
5. Gators
6. Possibility of large water mills upstream or downstream
7. Possibility of large dams upstream or downstream
8. Motion required to maintain leveling when an animal urinates in the stream or a person pours their Starbucks into the stream
9. The water is all moving toward a giant maelstrom
10. Something to do with squid

Rain Man
10-25-2006, 01:50 PM
:hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm:

Your saying one end of the stream is higher than the other... Even if it's 500 miles long ??? Sounds good to me...


Water is pretty good at detecting small changes in elevation.

Fire Me Boy!
10-25-2006, 01:51 PM
I'll go with Baby Lee's explanation, but to be really thorough I would also want to add the following forces:

1. Lunar gravity
2. Disruptions caused by swimming fish
3. Thermodynamic forces caused by tectonics and solar radiation
4. Wind
5. Gators
6. Possibility of large water mills upstream or downstream
7. Possibility of large dams upstream or downstream
8. Motion required to maintain leveling when an animal urinates in the stream or a person pours their Starbucks into the stream
9. The water is all moving toward a giant maelstrom
10. Something to do with squid
This also affects women's menstrual cycles. All of it. Especially the squid.

Sully
10-25-2006, 01:52 PM
I'm not a science buff, but when i want to learn more science-type stuff, I always watch this show.
I hope it helps.

http://thetravisty.com/Saturday_Night_Live/wmv/Space_the_Infinite_Frontier.htm

PinkFloyd
10-25-2006, 01:53 PM
I'll go with Baby Lee's explanation, but to be really thorough I would also want to add the following forces:

1. Lunar gravity
2. Disruptions caused by swimming fish
3. Thermodynamic forces caused by tectonics and solar radiation
4. Wind
5. Gators
6. Possibility of large water mills upstream or downstream
7. Possibility of large dams upstream or downstream
8. Motion required to maintain leveling when an animal urinates in the stream or a person pours their Starbucks into the stream
9. The water is all moving toward a giant maelstrom
10. Something to do with squid


Better not be any gators or squid around here !!! ROFL

MichaelH
10-25-2006, 01:55 PM
It depends on what side of the continental divide you live on.

PinkFloyd
10-25-2006, 01:58 PM
It depends on what side of the continental divide you live on.


What happens if you live RIGHT ON the divide ???

milkman
10-25-2006, 01:59 PM
What happens if you live RIGHT ON the divide ???

You get a natural bedet.

tiptap
10-25-2006, 02:03 PM
Didn't you watch Jurassic Park. This is a Chaotic conditioned and the answer is only statistical. As opposed to certainity that water seeks to reach the ocean level from elevated starting point.

LabRat38
10-25-2006, 02:12 PM
First off, the total stream as stated before is not completely level, almost nothing in nature is completely level. To keep it simple first you need to assume the stream is a long, isolated system. This assumptiion is obviously incorrect but it allows for the easiest explanation of the phenomena without involving infinite variables. So with this assumption we can then follow the flow of one water molecule from the "beginning" to the "end" of the stream. In any system the system is constantly trying to achieve the lowest potential energy. This is always more stable. Therefore, we know that the single molecule is also trying to achieve the lowest possible potential energy. Therefore, knowing that potential energy can be expressed as the folling equation: potential energy = mass X force X height and knowing that the "end" of the stream is lower than the "beginning" of the stream you can see that the potential energy would be lower at the "end" since the mass of the one water molecule is equal at any point in the stream and force (expressed as gravity in this situation) is approximately the same at any point in the stream. This explains the physics of the streams flow.

DMAC
10-25-2006, 02:15 PM
Also if it is spring-fed, it is being pushed as well as pulled.

PinkFloyd
10-25-2006, 02:22 PM
First off, the total stream as stated before is not completely level, almost nothing in nature is completely level. To keep it simple first you need to assume the stream is a long, isolated system. This assumptiion is obviously incorrect but it allows for the easiest explanation of the phenomena without involving infinite variables. So with this assumption we can then follow the flow of one water molecule from the "beginning" to the "end" of the stream. In any system the system is constantly trying to achieve the lowest potential energy. This is always more stable. Therefore, we know that the single molecule is also trying to achieve the lowest possible potential energy. Therefore, knowing that potential energy can be expressed as the folling equation: potential energy = mass X force X height and knowing that the "end" of the stream is lower than the "beginning" of the stream you can see that the potential energy would be lower at the "end" since the mass of the one water molecule is equal at any point in the stream and force (expressed as gravity in this situation) is approximately the same at any point in the stream. This explains the physics of the streams flow.



:( :( :( :( :( If you say so. !!! I understand what your saying... I think... You must have taken chemistry and advanced science...


I'm just joking with you... Good answer...

LabRat38
10-25-2006, 02:25 PM
Pink Floyd, I do have a degree in chemistry and also studied quite a bit of physics.

Redrum_69
10-25-2006, 02:36 PM
Pinkfloyd....

Allow me to reverberate some past reps to maybe clear up your question.


Your mom is like a river....she lets anyone who can "swim" dive in, she doesnt post signs about being shallow, anyone who does dive in has to be hosed off and given penicillen/tetnus shots, and strangers throw junk in her at all hours of the night.


Your mom's pinooch reminds me of a fresh cowpie with a wagon track down the middle of it.

PinkFloyd
10-25-2006, 03:21 PM
Pink Floyd, I do have a degree in chemistry and also studied quite a bit of physics.


I'm glad theres a few of us on here that know more than just sports !!! :thumb:

PinkFloyd
10-25-2006, 03:23 PM
Pinkfloyd....

Allow me to reverberate some past reps to maybe clear up your question.


Your mom is like a river....she lets anyone who can "swim" dive in, she doesnt post signs about being shallow, anyone who does dive in has to be hosed off and given penicillen/tetnus shots, and strangers throw junk in her at all hours of the night.


Your mom's pinooch reminds me of a fresh cowpie with a wagon track down the middle of it.


Gee -- I think someone woke up on the wrong side of the bed.... And their bed is against the wall....

Que Card QB
10-25-2006, 03:28 PM
Because if you put your bong down beside the stream--on the bank--you'll see that one side of bong-water (at the peak of the meniscus of course) is higer than the other...gawd.

Braincase
10-25-2006, 03:32 PM
Top is level... bottom of it ain't.

Gravity, homey, gravity.

KC-TBB
10-25-2006, 03:39 PM
Thank you all, I feel much smarter for having read this very insitefull information...but I thought everyone knew that sh_t don't run uphill!

Dark Horse
10-25-2006, 05:14 PM
[QUOTE=LabRat38]First off, the total stream as stated before is not completely level, almost nothing in nature is completely level. QUOTE]

And all this time I thought it was my carpentry skills that sucked. :hmmm:

DanT
10-25-2006, 05:36 PM
Here's the teaser and link for an interesting story about the bidirectional flow of the Chicago River:


The River Under the River

In 1900, engineers reversed the flow of the Chicago River to prevent wastewater from polluting Lake Michigan and the city's drinking supply. The feat was hailed as one of the seven engineering wonders of the United States. Nearly 100 years later, measurements revealed mysterious currents flowing toward the lake, deep below the river's surface. Was the river reclaiming its historical path?

http://cee.uiuc.edu/alumni/newsletter/p10_river.aspx

plbrdude
10-25-2006, 05:44 PM
question : do not all rivers and streams flow toward the equator. meanin in the southern hemisphere they have a south to north flow direction?

Bwana
10-25-2006, 05:54 PM
Because it can. :)

Adept Havelock
10-25-2006, 05:57 PM
What happens if you live RIGHT ON the divide ???

Then you are likely spending a lot of time with John Belushi and Blair Brown.

Que Card QB
10-25-2006, 06:24 PM
question : do not all rivers and streams flow toward the equator. meanin in the southern hemisphere they have a south to north flow direction?Um...I think you're confusing clockwise/counterclockwise (which is clockwise upside down, or on the other side of the equator), with North and South.
Everything flows from high to low because of gravity. From Colorado to the Gulf of Mexico or Utah to the Pacific. If you happen to be in Mo., you're still around 800-1,000 feet above sea level. Streams and rivers can flow any direction but ultimately, they end up in the oceans.

Que Card QB
10-25-2006, 06:26 PM
Why did I ever wonder where in world, the rest of the NFL got their stereotypical ideas about us?

Baby Lee
10-25-2006, 06:31 PM
Then you are likely spending a lot of time with John Belushi and Blair Brown.
That eagle freak!!

Luke
10-25-2006, 07:16 PM
If it didn't flow one way or the other, wouldn't it be depending on it's size a pond or lake?
Or an ocean? Or a puddle?
I get so confused sometimes, I think I have a concussion. :banghead:

ChiefaRoo
10-25-2006, 07:34 PM
The Rocky mountains to the Mountains in the East are a giant watershed with the Mississippi River at the bottom.

Rain Man
10-25-2006, 08:11 PM
What happens if you live RIGHT ON the divide ???

Then the water's frozen and doesn't move at all.

Archie F. Swin
10-25-2006, 08:19 PM
Walking across west Texas in July, you'd think someone forgot to pay the river bill

boogblaster
10-25-2006, 10:03 PM
Pink water is hardly ever level..if more water is standing in one spot it is because its a deeper hole there..that hole of water can run for miles..plus springs can feed some holes that are lower than the ones above..plus water is always moving a little from under-tow.....

JohninGpt
10-25-2006, 10:07 PM
question : do not all rivers and streams flow toward the equator. meanin in the southern hemisphere they have a south to north flow direction?
Nope, the Nile flows to the North and it's mouth and I believe most of the river is in the Northern Hemisphere.