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Forum LockedIs earth really spehrical

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    Posted: 18-Nov-2007 at 12:53
    Most people say that the earth is not spherical but elliptical and i have seen many images of the earth which  render it as elliptical. However the images that which i have seen of it form outer space, it looks really round to me. So what is this idea that the earth is not spherical but elliptical.     
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Post Options Post Options   Thanks (0) Thanks(0)   Quote çok geç Quote  Post ReplyReply Direct Link To This Post Posted: 18-Nov-2007 at 13:32
the bludge on the equator is only 40 kilometers extra to the polar diameter. That is why you still see it in a round shape. Though it is not spherically round, the difference is hard to notice when looking at earth from a far distance in space.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Omar al Hashim Quote  Post ReplyReply Direct Link To This Post Posted: 19-Nov-2007 at 10:42
I can't believe you actually asked this question.

Are we living in the 17th century or are we actually going to trust the fact that we have mapped the earth? We have travelled off the planet, can measure it (or anything else) to 10cm precision from orbit. Yes its actually elliptical!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sparten Quote  Post ReplyReply Direct Link To This Post Posted: 19-Nov-2007 at 10:46
Er..Omer, I think he is asking why do people say that it is elliptical when its seems round. Bit different from the flat earth idea.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Omar al Hashim Quote  Post ReplyReply Direct Link To This Post Posted: 19-Nov-2007 at 10:49
What's the difference? Round -> Flat is the same as Elliptical -> Spherical just with a difference precision of measurement.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dolphin Quote  Post ReplyReply Direct Link To This Post Posted: 19-Nov-2007 at 13:26
^^^^^Not really. You are comparing two entirely different levels of difference. Is a ball just as similar to a piece of paper as a ball is to an egg?
 
Of course there is a different precision of measurment, that is the very question Bilal is asking!! What's your point Omar?
 
 
Anyway, I think cok gec summed it up pretty well, mathematically the earth is elliptical, but in our visual terms and within our visual limitations it is essentially spherical.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Illirac Quote  Post ReplyReply Direct Link To This Post Posted: 19-Nov-2007 at 19:52
haha...the Earth appears spherical or elliptical...as far as today sience knows it could be a square...not everything that appear is
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pekau Quote  Post ReplyReply Direct Link To This Post Posted: 20-Nov-2007 at 00:24

People... let's be reasonable. Earth's shape could be anything. Everytime we make the decision, the universe split to all possibilities. So there are flat Earths, round Earths, elliptical Earths... heck, there's even Earths in the shape of decagon. Seriously, why is this in intellectual threat? Heisenberg Theory and String Theory should clear all the issues by now.

     
   
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Adalwolf Quote  Post ReplyReply Direct Link To This Post Posted: 20-Nov-2007 at 01:04
wtf? earth is basically a sphere. It has slight bulge in the middle, but is basically, for all intents and purposes, a sphere. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Balaam Quote  Post ReplyReply Direct Link To This Post Posted: 20-Nov-2007 at 05:23
Why bother starting a thread like this when we all know that the earth is flat and if we fall off the edge we get eaten by dragons.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Zagros Quote  Post ReplyReply Direct Link To This Post Posted: 20-Nov-2007 at 10:52
It's an ostrich egg... shape!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Cywr Quote  Post ReplyReply Direct Link To This Post Posted: 21-Nov-2007 at 13:43
I thought it was bannana shaped.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Darius of Parsa Quote  Post ReplyReply Direct Link To This Post Posted: 21-Nov-2007 at 14:23

The Earth is whatever shape you want it to be. If you want it to be bannana shaped Cywr, then just live your life thinking it is.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote edgewaters Quote  Post ReplyReply Direct Link To This Post Posted: 30-Nov-2007 at 00:31
Originally posted by pekau pekau wrote:

People... let's be reasonable. Earth's shape could be anything. Everytime we make the decision, the universe split to all possibilities. So there are flat Earths, round Earths, elliptical Earths... heck, there's even Earths in the shape of decagon. Seriously, why is this in intellectual threat? Heisenberg Theory and String Theory should clear all the issues by now.



Heisenberg Theory and String Theory are so terribly misunderstood. People want them to be some mystical "anything goes" nonsense, which they hardly are. They simply do not apply beyond the subatomic level ...

The Earth is not a square or a banana or anything else, it is an elliptical orb.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pekau Quote  Post ReplyReply Direct Link To This Post Posted: 30-Nov-2007 at 22:26
Originally posted by edgewaters edgewaters wrote:

Originally posted by pekau pekau wrote:

People... let's be reasonable. Earth's shape could be anything. Everytime we make the decision, the universe split to all possibilities. So there are flat Earths, round Earths, elliptical Earths... heck, there's even Earths in the shape of decagon. Seriously, why is this in intellectual threat? Heisenberg Theory and String Theory should clear all the issues by now.



Heisenberg Theory and String Theory are so terribly misunderstood. People want them to be some mystical "anything goes" nonsense, which they hardly are. They simply do not apply beyond the subatomic level ...

The Earth is not a square or a banana or anything else, it is an elliptical orb.
 
Yes they do. It applies for everything. Quantum sucide is a classic example.
     
   
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Post Options Post Options   Thanks (0) Thanks(0)   Quote edgewaters Quote  Post ReplyReply Direct Link To This Post Posted: 01-Dec-2007 at 08:59
Originally posted by pekau pekau wrote:

Yes they do. It applies for everything. Quantum sucide is a classic example.


Theoretically, it can be made to apply to at a greater level by using some mechanism that depends on the behaviour of a particle (say, for instance, a gun whose trigger mechanism is the spin of a single particle). In addition, the particle - and possibly the gun itself and anything it might effect - would have to lack an observer. Such a situation is described in the Schroedinger cat model, which depends on the Copenhagen Interpretation.

Otherwise, it just doesn't apply. So unless you take everyone off the planet, put it in a box, and design a mechanism that can reshape it into a square or a banana depending on the behaviour of one single particle ... the earth is an elliptical orb, quantum physics notwithstanding. In fact, even if you did something like that, it would still be an elliptical orb (among other things).

Moreover, under the Ensemble Interpretation (which is equally in conformance to quantum physics as Copenhagen Interpretation), Schroedinger's Cat and similar thought-experiments such as quantum suicide are irrelevant. It views the indeterminate state as an illusory function of ensembles or series rather than the properties of a single phenomena. Wave-particle duality in the double slit experiment, for instance, occurs because you have a series of observations. Any given observation is definite and there is no superposition of states at any time - the series simply gives the illusion of superposition.

Edited by edgewaters - 01-Dec-2007 at 09:15
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