Speed?

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Shadro

Speed?
« on: March 06, 2007, 11:00:27 PM »
If i am wrong correct me but i read that the acceleration of the earth according to FE theories is 9.8m.s2. If this is true and i assume the Earth is older than 1500 years then at that rate of acceleration the earth would be traveling at 463896720km.h2 (i think and do stand open to correction) this is faster than the speed of light.

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TheEngineer

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Re: Speed?
« Reply #1 on: March 06, 2007, 11:02:49 PM »
You can't apply Newtonian mechanics to a relativistic situation.  The earth is accelerating a 9.81m/s^2, and can continue to do so forever and never reach the speed of light.  This can be seen in the equations of relativity.


"I haven't been wrong since 1961, when I thought I made a mistake."
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_MarquisDeSade

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Re: Speed?
« Reply #2 on: March 07, 2007, 07:04:12 AM »
If i am wrong correct me but i read that the acceleration of the earth according to FE theories is 9.8m.s2. If this is true and i assume the Earth is older than 1500 years then at that rate of acceleration the earth would be traveling at 463896720km.h2 (i think and do stand open to correction) this is faster than the speed of light.

Please read the FAQ
"Oh, judge, your damn laws: the good people don't need them and the bad people don't follow them so what good are they?"

It is forbidden to kill; therefore all murderers are punished unless they kill in large numbers and to the sound of trumpets

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kinereoj

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Re: Speed?
« Reply #3 on: March 07, 2007, 10:03:00 AM »
I assume from your FAQ that you are generally familiar with both special and general relativity. I assume that you believe that we are not living in a gravitational field, but in fact an accelerated reference frame. I understand the Equivalence Principle very well. Locally, you cannot do any physical experiment to test the difference between an accelerated reference frame or a gravitational field. However, over large regions you definitely can tell a difference. If the entire earth were an accelerated reference frame, the gravitational field would not vary at all. It wouldn't vary across the surface of the earth, and it wouldn't vary with height. I am a physicist, and I have tested both of these things experimentally. The gravitational field varies across the surface of the earth, due to the different densities of material beneath. The more dramatic field change is that it varies with height. It seems to me that you are also denying that gravity exists at all, which means you are denying the second half of general relativity which explains how mass-energy distorts space-time.

There are also experiments you can do to prove that the earth is spinning. There are measurable Coriolis and Centrifugal forces that change with latitude. These affect projectile motion and are essential in calculating such things as missile trajectories. The direction and magnitude of the measured forces are perfectly consistent with a body the shape of an oblate spheroid rotating about a central axis with a period of one rotation every 24 hours.

I'm not sure if you are denying gravitational affects or not, but don't forget that it is completely possible to measure the gravitational "force" between two masses in a laboratory. I know this, I have done it myself. It's a fairly sophisticated procedure, but it can be done.

The easiest test of geometry would be to measure the circumference and radius of a circle that is confined to the surface of the earth. We should measure the distance around the earth at the equator (circumference), and the radius from the equator to the north pole (radius). If the circumference is exactly 2pi (6.28 . . .) times the radius, we are living on a flat earth. If the circumference is closer to 4 times the radius, we are living on what is close to a spherically shaped earth. If you want to prove to the world that you are correct, you should do this experiment. I would recommend flying in an airplane around the equator at a constant speed and measuring the time it takes to circle it once. Then I would fly from the equator to the North Pole and time that at a constant speed. Does it take 1/4 or 1/6 the amount of time. I'm guessing that it takes you longer to get to the North Pole than you think it would.

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agentofanon

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Re: Speed?
« Reply #4 on: March 07, 2007, 06:53:39 PM »
If i am wrong correct me but i read that the acceleration of the earth according to FE theories is 9.8m.s2. If this is true and i assume the Earth is older than 1500 years then at that rate of acceleration the earth would be traveling at 463896720km.h2 (i think and do stand open to correction) this is faster than the speed of light.

God can make the earth move as fast as he wants it to.  If people like you keep bitching about it he might stop and then we'll all be flying around and that won't be good. 

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self

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Re: Speed?
« Reply #5 on: March 08, 2007, 09:36:38 AM »
If i am wrong correct me but i read that the acceleration of the earth according to FE theories is 9.8m.s2. If this is true and i assume the Earth is older than 1500 years then at that rate of acceleration the earth would be traveling at 463896720km.h2 (i think and do stand open to correction) this is faster than the speed of light.

God can make the earth move as fast as he wants it to.  If people like you keep bitching about it he might stop and then we'll all be flying around and that won't be good. 

dont u realise God is misqouted in the bible several times as the devil??
did u not know god is the root of all evil???
it's religions that worship god that cause war. it's "god's wrath" that will kill you etc etc

God wouldn't care. he'd rather let you fry

plus, in christianity, god and heaven are believed to be in the sky's whereas as the devil is in the firey pits under the earth so therefore your flawed by saying god is pushing us up where in fact the devil is below us

i love how christianity contradicts itself :P

p.s im an aethiest so i don't believe in spiritual forces.

please give a scientific explanation

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sokarul

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Re: Speed?
« Reply #6 on: March 08, 2007, 10:52:14 AM »
You can't apply Newtonian mechanics to a relativistic situation.  The earth is accelerating a 9.81m/s^2, and can continue to do so forever and never reach the speed of light.  This can be seen in the equations of relativity.


Yeah this, although it also requires Energy to approach infinity but there is some magical animal creating all the energy we need to keep accelerating. 
ANNIHILATOR OF  SHIFTER

It's no slur if it's fact.

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Dioptimus Drime

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Re: Speed?
« Reply #7 on: March 08, 2007, 12:23:30 PM »
dont u realise God is misqouted in the bible several times as the devil??
So?

Quote
did u not know god is the root of all evil???
it's religions that worship god that cause war. it's "god's wrath" that will kill you etc etc
Yep.

Quote
God wouldn't care. he'd rather let you fry
Probably.

Quote
plus, in christianity, god and heaven are believed to be in the sky's whereas as the devil is in the firey pits under the earth so therefore your flawed by saying god is pushing us up where in fact the devil is below us

i love how christianity contradicts itself :P

p.s im an aethiest so i don't believe in spiritual forces.
The guy's a troll, if you'll notice the fact that he hardly has any posts and isn't even arguing for the flat Earth, he's just trying to make everyone else look stupid because he's a dick.

Quote
please give a scientific explanation
We don't know the mechanism for the Universal Accelerator, but we can see by observation that it's accelerating us.

~D-Draw

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astronomy101

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Re: Speed?
« Reply #8 on: March 08, 2007, 12:37:46 PM »
Good job Diego/
Imperious, choleric, irascible, extreme in everything, with a dissolute imagination the like of which has never been seen, atheistic to the point of fanaticism, there you have me in a nutshell.... Kill me again or take me as I am, for I shall not change.

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self

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Re: Speed?
« Reply #9 on: March 08, 2007, 10:41:30 PM »
dont u realise God is misqouted in the bible several times as the devil??
So?

Quote
did u not know god is the root of all evil???
it's religions that worship god that cause war. it's "god's wrath" that will kill you etc etc
Yep.

Quote
God wouldn't care. he'd rather let you fry
Probably.

Quote
plus, in christianity, god and heaven are believed to be in the sky's whereas as the devil is in the firey pits under the earth so therefore your flawed by saying god is pushing us up where in fact the devil is below us

i love how christianity contradicts itself :P

p.s im an aethiest so i don't believe in spiritual forces.
The guy's a troll, if you'll notice the fact that he hardly has any posts and isn't even arguing for the flat Earth, he's just trying to make everyone else look stupid because he's a dick.

Quote
please give a scientific explanation
We don't know the mechanism for the Universal Accelerator, but we can see by observation that it's accelerating us.

~D-Draw


actually, im testing your logic

logic is the basis before any proof or theory can be explained. if it is not logical, it will be extremely hard to prove

im pointing out logical irregularities that are not consistent with the FE physics.

When someone incorrectly uses religion, i point out the flaws in logic to that answer

if you actually read the majority of my serious posts, you will see that many of my logical suggestions can be tested at home and gauranteed to show the answer

if not, your part of the FE conspiracy

thats right. FE is a conspiracy to evade us from wat is real

you believe RE is a conspiracy, so it's only logical that I can believer FE is a conspiracy

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Dioptimus Drime

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Re: Speed?
« Reply #10 on: March 09, 2007, 12:22:24 AM »
Well, I was just pointing out that the majority of those who argue for the flat Earth aren't religious--that is to say, most of us are atheists. Also, I was pointing out that you shouldn't listen to trolls as they tend to like making you want to pull your hair out.

~D-Draw

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self

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Re: Speed?
« Reply #11 on: March 09, 2007, 12:31:06 AM »
Well, I was just pointing out that the majority of those who argue for the flat Earth aren't religious--that is to say, most of us are atheists. Also, I was pointing out that you shouldn't listen to trolls as they tend to like making you want to pull your hair out.

~D-Draw

yer i pulled some hair out a few days ago when i saw Saw 3 on DVD. it was terrible

but yer, it's not nice lol

i just can't get my head around why people believe RE is a conspiracy

is it not possible that FE is the true conspiracy??

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Dioptimus Drime

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Re: Speed?
« Reply #12 on: March 09, 2007, 12:32:16 AM »
It's possible, but pretty stupid, seeing as if it WAS a conspiracy, it would be a pretty goddamned sucky one.

~D-Draw

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self

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Re: Speed?
« Reply #13 on: March 09, 2007, 12:36:46 AM »
It's possible, but pretty stupid, seeing as if it WAS a conspiracy, it would be a pretty goddamned sucky one.

~D-Draw

and why do u not feel that way about the possible RE conspiracy????

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Dioptimus Drime

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Re: Speed?
« Reply #14 on: March 09, 2007, 12:44:50 AM »
and why do u not feel that way about the possible RE conspiracy????
Okay, lemme run this down for ya:

Flat Earth Conspiracy -- Everyone thinks the Earth is round. They must really fail at their job.
Round Earth Conspiracy -- Everyone thinks the Earth is round. They're damned good at their job.


~D-Draw

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self

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Re: Speed?
« Reply #15 on: March 09, 2007, 12:48:20 AM »
and why do u not feel that way about the possible RE conspiracy????
Okay, lemme run this down for ya:

Flat Earth Conspiracy -- Everyone thinks the Earth is round. They must really fail at their job.
Round Earth Conspiracy -- Everyone thinks the Earth is round. They're damned good at their job.


~D-Draw

that just makes it sound in favour of RE lol bad choice of words u chose i think

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joe90

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Re: Speed?
« Reply #16 on: March 09, 2007, 04:32:41 AM »
Hi, I just found your site and have to admit I am intrigued by your theory of a flat Earth. But, having read through a few threads, it seems that you are not doing yourselves any favors by not replying to any of the challenges put to you in a serious way. Here's just one example of what I think totally blows your theory out of the water:

I assume from your FAQ that you are generally familiar with both special and general relativity. I assume that you believe that we are not living in a gravitational field, but in fact an accelerated reference frame. I understand the Equivalence Principle very well. Locally, you cannot do any physical experiment to test the difference between an accelerated reference frame or a gravitational field. However, over large regions you definitely can tell a difference. If the entire earth were an accelerated reference frame, the gravitational field would not vary at all. It wouldn't vary across the surface of the earth, and it wouldn't vary with height. I am a physicist, and I have tested both of these things experimentally. The gravitational field varies across the surface of the earth, due to the different densities of material beneath. The more dramatic field change is that it varies with height. It seems to me that you are also denying that gravity exists at all, which means you are denying the second half of general relativity which explains how mass-energy distorts space-time.

There are also experiments you can do to prove that the earth is spinning. There are measurable Coriolis and Centrifugal forces that change with latitude. These affect projectile motion and are essential in calculating such things as missile trajectories. The direction and magnitude of the measured forces are perfectly consistent with a body the shape of an oblate spheroid rotating about a central axis with a period of one rotation every 24 hours.

I'm not sure if you are denying gravitational affects or not, but don't forget that it is completely possible to measure the gravitational "force" between two masses in a laboratory. I know this, I have done it myself. It's a fairly sophisticated procedure, but it can be done.

The easiest test of geometry would be to measure the circumference and radius of a circle that is confined to the surface of the earth. We should measure the distance around the earth at the equator (circumference), and the radius from the equator to the north pole (radius). If the circumference is exactly 2pi (6.28 . . .) times the radius, we are living on a flat earth. If the circumference is closer to 4 times the radius, we are living on what is close to a spherically shaped earth. If you want to prove to the world that you are correct, you should do this experiment. I would recommend flying in an airplane around the equator at a constant speed and measuring the time it takes to circle it once. Then I would fly from the equator to the North Pole and time that at a constant speed. Does it take 1/4 or 1/6 the amount of time. I'm guessing that it takes you longer to get to the North Pole than you think it would.

...and yet you choose not to reply to such posts because? (I suspect it is because you have no counter argument). Please be aware, I'm not trying to flame you, only to point out that if you want to be taken seriously, you have to be prepared to counter rational, well thought out arguments like the one above. So, yeah, can you tell me what your take on what kinereoj said is?

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_MarquisDeSade

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Re: Speed?
« Reply #17 on: March 09, 2007, 06:17:11 AM »
Hi, I just found your site and have to admit I am intrigued by your theory of a flat Earth. But, having read through a few threads, it seems that you are not doing yourselves any favors by not replying to any of the challenges put to you in a serious way. Here's just one example of what I think totally blows your theory out of the water:

I assume from your FAQ that you are generally familiar with both special and general relativity. I assume that you believe that we are not living in a gravitational field, but in fact an accelerated reference frame. I understand the Equivalence Principle very well. Locally, you cannot do any physical experiment to test the difference between an accelerated reference frame or a gravitational field. However, over large regions you definitely can tell a difference. If the entire earth were an accelerated reference frame, the gravitational field would not vary at all. It wouldn't vary across the surface of the earth, and it wouldn't vary with height. I am a physicist, and I have tested both of these things experimentally. The gravitational field varies across the surface of the earth, due to the different densities of material beneath. The more dramatic field change is that it varies with height. It seems to me that you are also denying that gravity exists at all, which means you are denying the second half of general relativity which explains how mass-energy distorts space-time.

There are also experiments you can do to prove that the earth is spinning. There are measurable Coriolis and Centrifugal forces that change with latitude. These affect projectile motion and are essential in calculating such things as missile trajectories. The direction and magnitude of the measured forces are perfectly consistent with a body the shape of an oblate spheroid rotating about a central axis with a period of one rotation every 24 hours.

I'm not sure if you are denying gravitational affects or not, but don't forget that it is completely possible to measure the gravitational "force" between two masses in a laboratory. I know this, I have done it myself. It's a fairly sophisticated procedure, but it can be done.

The easiest test of geometry would be to measure the circumference and radius of a circle that is confined to the surface of the earth. We should measure the distance around the earth at the equator (circumference), and the radius from the equator to the north pole (radius). If the circumference is exactly 2pi (6.28 . . .) times the radius, we are living on a flat earth. If the circumference is closer to 4 times the radius, we are living on what is close to a spherically shaped earth. If you want to prove to the world that you are correct, you should do this experiment. I would recommend flying in an airplane around the equator at a constant speed and measuring the time it takes to circle it once. Then I would fly from the equator to the North Pole and time that at a constant speed. Does it take 1/4 or 1/6 the amount of time. I'm guessing that it takes you longer to get to the North Pole than you think it would.

...and yet you choose not to reply to such posts because? (I suspect it is because you have no counter argument). Please be aware, I'm not trying to flame you, only to point out that if you want to be taken seriously, you have to be prepared to counter rational, well thought out arguments like the one above. So, yeah, can you tell me what your take on what kinereoj said is?

Tom Bishop answered the questions in this post. But I don't think all of them.
And if you knew anything about relativity you could point out the problems in that post yourself.
"Oh, judge, your damn laws: the good people don't need them and the bad people don't follow them so what good are they?"

It is forbidden to kill; therefore all murderers are punished unless they kill in large numbers and to the sound of trumpets

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joe90

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Re: Speed?
« Reply #18 on: March 09, 2007, 06:35:17 AM »
Sorry... I didn't see any posts from Tom Bishop in this thread. Also, I'm not bothered to admit that, no, I don't know much about relativity, but the argument presented by kinereoj seemed  (to my limited understanding of physics ) to be quite sound. Still, that is why I am asking questions on here. Unlike some people posting on the forum, I come here with an open mind, ready to accept arguments from either side, so anyways, back to the original topic about speed. If the Earth is accelerating and has been for megayears, and taking onto account relativistic effects etc, etc, is there any concensus on how fast we are actaully going at the moment? Is it close to the speed of light/ fraction of? anyone? if there is a figure, how was it arrived at?

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joe90

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Re: Speed?
« Reply #19 on: March 09, 2007, 06:55:46 AM »
Perhaps you could link me to some of what you consider to be the best answers then please?

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TheEngineer

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Re: Speed?
« Reply #20 on: March 09, 2007, 07:36:39 AM »
If the Earth is accelerating and has been for megayears, and taking onto account relativistic effects etc, etc, is there any concensus on how fast we are actaully going at the moment? Is it close to the speed of light/ fraction of? anyone? if there is a figure, how was it arrived at?
We are currently going less than the speed of light.  To get an exact figure, we would need to know exactly when the earth started accelerating.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

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joe90

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Re: Speed?
« Reply #21 on: March 09, 2007, 07:41:12 AM »
If the Earth is accelerating and has been for megayears, and taking onto account relativistic effects etc, etc, is there any concensus on how fast we are actaully going at the moment? Is it close to the speed of light/ fraction of? anyone? if there is a figure, how was it arrived at?
We are currently going less than the speed of light.  To get an exact figure, we would need to know exactly when the earth started accelerating.

Thank you for your reply, TheEngineer.

So... any idea when the Earth started accelerating? ;D

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TheEngineer

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Re: Speed?
« Reply #22 on: March 09, 2007, 07:42:14 AM »
Probably around 4.5 billion years ago.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

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joe90

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Re: Speed?
« Reply #23 on: March 09, 2007, 07:54:17 AM »
Hmm... so FE'ers and RE'ers agree with each other over the age of the Earth? Well thats something I guess! :)
Okay, so TheEngineer, you seem pretty clued up on the physics and maths and what not so could you take me through how to calculate the speed we are going at? I did read the thread linked from the FAQs about the Earth's speed, but I have to admit I couldn't follow most of it. Care to explain the maths to a simpleton like me? ;D

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TheEngineer

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Re: Speed?
« Reply #24 on: March 09, 2007, 08:03:40 AM »
Basically, it works like this:

w = (u+v)/(1+(uv)/c^2)

Where u is our current velocity, v is the additional velocity, c is the speed of light, and w is our new velocity.
So, starting at u=0m/s and v is always 9.81m/s (as every second, we add 9.81m/s to our velocity), start doing the math, although using a computer would make it much faster.  Take a guess at how many seconds we have been accelerating, and do that many iterations.


"I haven't been wrong since 1961, when I thought I made a mistake."
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joe90

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Re: Speed?
« Reply #25 on: March 09, 2007, 08:36:03 AM »
ok so, it's an iterative formula? I work out w for the initial condition u=0 m/s and then that answer for w becomes the new value for u in the next iteration and so on?

Hang on, I'll get my pen and paper out. See you in a few years. ;D

Oh and thanks for the replies. Seems to me (and I don't mean to be insulting anyone) that a lot of the FE'ers reply to newb questions with somewhat belligerent answers (although I guess it might be hard not to with all the people coming on here poking fun).

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C-Ray

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Re: Speed?
« Reply #26 on: November 06, 2008, 03:16:33 PM »
No one will comment on this guys post?  What gives?

I assume from your FAQ that you are generally familiar with both special and general relativity. I assume that you believe that we are not living in a gravitational field, but in fact an accelerated reference frame. I understand the Equivalence Principle very well. Locally, you cannot do any physical experiment to test the difference between an accelerated reference frame or a gravitational field. However, over large regions you definitely can tell a difference. If the entire earth were an accelerated reference frame, the gravitational field would not vary at all. It wouldn't vary across the surface of the earth, and it wouldn't vary with height. I am a physicist, and I have tested both of these things experimentally. The gravitational field varies across the surface of the earth, due to the different densities of material beneath. The more dramatic field change is that it varies with height. It seems to me that you are also denying that gravity exists at all, which means you are denying the second half of general relativity which explains how mass-energy distorts space-time.

There are also experiments you can do to prove that the earth is spinning. There are measurable Coriolis and Centrifugal forces that change with latitude. These affect projectile motion and are essential in calculating such things as missile trajectories. The direction and magnitude of the measured forces are perfectly consistent with a body the shape of an oblate spheroid rotating about a central axis with a period of one rotation every 24 hours.

I'm not sure if you are denying gravitational affects or not, but don't forget that it is completely possible to measure the gravitational "force" between two masses in a laboratory. I know this, I have done it myself. It's a fairly sophisticated procedure, but it can be done.

The easiest test of geometry would be to measure the circumference and radius of a circle that is confined to the surface of the earth. We should measure the distance around the earth at the equator (circumference), and the radius from the equator to the north pole (radius). If the circumference is exactly 2pi (6.28 . . .) times the radius, we are living on a flat earth. If the circumference is closer to 4 times the radius, we are living on what is close to a spherically shaped earth. If you want to prove to the world that you are correct, you should do this experiment. I would recommend flying in an airplane around the equator at a constant speed and measuring the time it takes to circle it once. Then I would fly from the equator to the North Pole and time that at a constant speed. Does it take 1/4 or 1/6 the amount of time. I'm guessing that it takes you longer to get to the North Pole than you think it would.
The Earth is Round.

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Broojo02

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Re: Speed?
« Reply #27 on: November 06, 2008, 04:52:07 PM »
No one will comment on this guys post?  What gives?

I assume from your FAQ that you are generally familiar with both special and general relativity. I assume that you believe that we are not living in a gravitational field, but in fact an accelerated reference frame. I understand the Equivalence Principle very well. Locally, you cannot do any physical experiment to test the difference between an accelerated reference frame or a gravitational field. However, over large regions you definitely can tell a difference. If the entire earth were an accelerated reference frame, the gravitational field would not vary at all. It wouldn't vary across the surface of the earth, and it wouldn't vary with height. I am a physicist, and I have tested both of these things experimentally. The gravitational field varies across the surface of the earth, due to the different densities of material beneath. The more dramatic field change is that it varies with height. It seems to me that you are also denying that gravity exists at all, which means you are denying the second half of general relativity which explains how mass-energy distorts space-time.

There are also experiments you can do to prove that the earth is spinning. There are measurable Coriolis and Centrifugal forces that change with latitude. These affect projectile motion and are essential in calculating such things as missile trajectories. The direction and magnitude of the measured forces are perfectly consistent with a body the shape of an oblate spheroid rotating about a central axis with a period of one rotation every 24 hours.

I'm not sure if you are denying gravitational affects or not, but don't forget that it is completely possible to measure the gravitational "force" between two masses in a laboratory. I know this, I have done it myself. It's a fairly sophisticated procedure, but it can be done.

The easiest test of geometry would be to measure the circumference and radius of a circle that is confined to the surface of the earth. We should measure the distance around the earth at the equator (circumference), and the radius from the equator to the north pole (radius). If the circumference is exactly 2pi (6.28 . . .) times the radius, we are living on a flat earth. If the circumference is closer to 4 times the radius, we are living on what is close to a spherically shaped earth. If you want to prove to the world that you are correct, you should do this experiment. I would recommend flying in an airplane around the equator at a constant speed and measuring the time it takes to circle it once. Then I would fly from the equator to the North Pole and time that at a constant speed. Does it take 1/4 or 1/6 the amount of time. I'm guessing that it takes you longer to get to the North Pole than you think it would.

http://theflatearthsociety.org/forum/index.php?topic=24163.0

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pilot

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Re: Speed?
« Reply #28 on: November 06, 2008, 11:51:15 PM »
at that rate of acceleration the earth would be traveling at 463896720km.h2

That is wrong.  Constant acceleration = it's always 9.8 m/s2.   It's just a flat line on a graph. Velocity with respect to time, however, is increasing infinitely.

a = (change in v)/(change in t)

Assuming v initial is 0 and t initial is 0, then v = (a)(t)

That yields m/s, not m/s2.

Ridiculously basic high school physics.
« Last Edit: November 06, 2008, 11:53:07 PM by pilot »

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Jack

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Re: Speed?
« Reply #29 on: November 08, 2008, 07:51:37 AM »
No one will comment on this guys post?  What gives?

I assume from your FAQ that you are generally familiar with both special and general relativity. I assume that you believe that we are not living in a gravitational field, but in fact an accelerated reference frame. I understand the Equivalence Principle very well. Locally, you cannot do any physical experiment to test the difference between an accelerated reference frame or a gravitational field. However, over large regions you definitely can tell a difference. If the entire earth were an accelerated reference frame, the gravitational field would not vary at all. It wouldn't vary across the surface of the earth, and it wouldn't vary with height. I am a physicist, and I have tested both of these things experimentally. The gravitational field varies across the surface of the earth, due to the different densities of material beneath. The more dramatic field change is that it varies with height. It seems to me that you are also denying that gravity exists at all, which means you are denying the second half of general relativity which explains how mass-energy distorts space-time.

There are also experiments you can do to prove that the earth is spinning. There are measurable Coriolis and Centrifugal forces that change with latitude. These affect projectile motion and are essential in calculating such things as missile trajectories. The direction and magnitude of the measured forces are perfectly consistent with a body the shape of an oblate spheroid rotating about a central axis with a period of one rotation every 24 hours.

I'm not sure if you are denying gravitational affects or not, but don't forget that it is completely possible to measure the gravitational "force" between two masses in a laboratory. I know this, I have done it myself. It's a fairly sophisticated procedure, but it can be done.

The easiest test of geometry would be to measure the circumference and radius of a circle that is confined to the surface of the earth. We should measure the distance around the earth at the equator (circumference), and the radius from the equator to the north pole (radius). If the circumference is exactly 2pi (6.28 . . .) times the radius, we are living on a flat earth. If the circumference is closer to 4 times the radius, we are living on what is close to a spherically shaped earth. If you want to prove to the world that you are correct, you should do this experiment. I would recommend flying in an airplane around the equator at a constant speed and measuring the time it takes to circle it once. Then I would fly from the equator to the North Pole and time that at a constant speed. Does it take 1/4 or 1/6 the amount of time. I'm guessing that it takes you longer to get to the North Pole than you think it would.
I stopped reading after the bold part.