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### Topics - SphericalEarther

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##### Flat Earth Community / Which model do you believe in?
« on: July 09, 2018, 07:53:15 AM »
For discussion, it would be good to know which model is the most prominent.
If you have another model which you believe is relevant to the poll, I would be glad to add it to the poll.

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##### Flat Earth Theory / Eye level horizon
« on: June 16, 2018, 07:04:16 PM »
The claim that the horizon is always at eye level, is a fundamental basis for flat earth perspective and reasoning, yet I have never seen any flat earther prove this claim.

I've seen flat earthers point the camera at the horizon and move the camera up/down to show that the horizon seems to follow the cameras level, but never seen a flat earther show and prove that the horizon is at eye level at higher altitudes.

So my questions:
Has it ever been proven?
Would it not be easy to prove this claim?

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##### Flat Earth Theory / Predictions
« on: June 14, 2018, 08:22:37 AM »
Using a model and theory, we can make predictions. This is the basis for a theory and we can do a lot of these for the heliocentric model.

Predictions made by the earth orbiting the sun once a year, and the earth rotating relative to the sun once a day:
I predict, the stars to come around in the sky exactly 366.25 times in a year compared to the sun coming around 365.25 times.
I predict, the angle between any 2 stars will be the same no matter which day or time of day.
I predict, the visible constellations in the night sky will be opposite at night when half a year apart.
I predict, there to be 2 poles due to earths rotation, and the poles would be exactly 180 degrees apart.
I predict, the angle from the north pole star (Polaris) to the sun, adding the angle from the south pole star (Sigma Octantis) to the sun, will be exactly 180 degrees.
I predict, at equinox, the sun is at a 90 degrees angle to both the pole stars.
I predict, since the earth is spinning, star trails would be almost completely circular.
I predict, at equinox, the sun will always set in due west 180 degrees from where it rose due east.

Predictions made by perspective on a spherical earth:
I predict, objects will disappear bottom first over the horizon at large distances.
I predict, the sun and moon, due to their distance, will not change in apparent size.
I predict, the sun will always travel at the same perspective angular speed throughout the day (15 degrees/hour).
I predict, the moon will always travel at the same perspective angular speed throughout the day, slightly faster than the sun (15.5 degrees/hour).

These are all very basic predictions, which we should observe in reality when using the heliocentric model.

Ancient and past civilisations used their history to predict future events, but using history is like using stone age tools when compared to using a model to predict future events.
I would like to know what the FE model can predict, not through the method of using knowledge of past events, but simply using the model and theory of FE.

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##### Flat Earth Theory / Simulation
« on: June 12, 2018, 12:52:49 PM »
Can you model and simulate the flat earth model using 3d software?

To be more specific:
• After modelling it, can you show the suns movement in the sky as it rises east and sets west exactly 180 degrees from where it rose?
• After modelling it, can you show the constellations as seen from earth from both the northern and the southern hemisphere?
• After modelling it, can you show the lunar phases as we see them from earth, including the full moon?

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##### Flat Earth Theory / Flat earthers can't deny: Simple observation which concludes a spherical earth
« on: June 12, 2018, 08:53:20 AM »
On the northern hemisphere, we can at any location find the direction to Polaris.
From this we can get our latitude by getting the vertical angle from level to Polaris, which should match your latitude location on a map.

On the southern hemisphere, we can do the same as on the northern hemisphere, just using the Sigma Octantis to get our latitude.

At any location on the earth, we can at equinox (when the sun travels straight above the equator), measure the angle from level to the sun at high noon (when the sun is highest in the sky, and directly north or south from your location)
From this we can also get our latitude by negating our result from 90 degrees, which should also match your latitude on a map.

At equinox, you can always find your latitude using the sun at high noon (you need an offset for the tilt at any other time, but this is also easily doable).
At any time, you can always find your latitude using Polaris or Sigma Octantis.
At equinox, we can conclude and observe that the angle between the Polaris and the sun is 90 degrees, anywhere they can be observed on earth.
At equinox, we can conclude and observe that the angle between the Sigma Octantis and the sun is 90 degrees, anywhere they can be observed on earth.
Even when not at the equinox, we can observe that the angles between the sun and the Polaris and Sigma Octantis combine to 180 degrees.
This is the case and can be observed at any location on earth, and will only be possible on a spherical earth.

If you can show these observations to be false, you would disprove this argument which clearly indicates a spherical earth.
You are also welcome to try and explain these observations on a flat earth, but I highly doubt you can do this with an explanation that fits all locations on earth.

TLDR;
At equinox, on the northern hemisphere, you can measure the elevation-angle to the sun when it is directly south. You can at night also measure the elevation-angle to Polaris.
These angles will be 90 degrees apart from each other at equinox due to being measured north and south, no matter where you are on the northern hemisphere.
In the southern hemisphere, you can do the exact same measurements, but instead you would measure north to the sun and south to Sigma Octantis.
There is no way this phenomenon can occur on a flat earth, but it is easily explained on a spherical earth.

To give you a visual of the difference between flat and globe models:
vs

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