1

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 12, 2018, 01:06:33 PM »

I don't understand the 'jigsaw puzzle' bit at all.

Do you understand the 'political coincidence'? I've described it repeatedly at length.

2

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 11, 2018, 07:49:33 PM »

London seems like the only place that preserves the shapes of 99% of land masses. This seems like more than a coincidence to me.

Does anyone know the official reason why Greenwich was chosen as the prime meridian?

Big competition between English and French, who had their own Paris meridian. French gave way in the end, in return for some concession. Purely political reason.

I find a hard to believe that it was purely a political reason when this line of longitude works so perfectly to create the Peirce Quincuncial projection (which was developed just 5 years before).

I understand if you have doubts that this projection is an actual flat Earth map. But this "political coincidence" leads me to believe that it is part of the jigsaw puzzle.

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Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 11, 2018, 09:03:20 AM »

I may be missing the point. I thought you were trying to create an accurate flat earth map. But are you now saying you just want to create a more accurate PQ projection?

I'm simply asking if there is a connection between Greenwich and Charles Sanders Peirce.

I wouldn't have thought so. Probably as you say above: the proximity of the dates is simply coincidence.

Peirce is now known as a philosopher and logician, but from 1859 to 1891 he was employed by the U. S. Coast and Geodetic Survey. That would explain his interest in projections. And the late 19th century saw a culmination of various geodetic projects to measure the shape of the earth.

So not a coincidence, but of no particular significance, in my view.

It is significant. Here is the evidence.



Notice how New Zealand is thrown out when calculated with the prime meridian in Mexico. Similar to when calculating from Reykjavik.

London seems like the only place that preserves the shapes of 99% of land masses. This seems like more than a coincidence to me.

Does anyone know the official reason why Greenwich was chosen as the prime meridian?

4

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 11, 2018, 06:44:07 AM »

I may be missing the point. I thought you were trying to create an accurate flat earth map. But are you now saying you just want to create a more accurate PQ projection?

I'm simply asking if there is a connection between Greenwich and Charles Sanders Peirce.

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Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 11, 2018, 04:44:30 AM »

Note though that if you include Antarctica, no choice of meridian results in an accurate map. Land that straddles the pole is a big problem for your projection

It is impossible for any member of the public to calculate the full shape of the coast of Antarctica.

You are missing the point.

Do I have to calculate 10 versions of the Peirce Quincuncial Projection with different prime meridians for you to understand exactly how much of a coincidence this is? If so, give me 10 randomly chosen locations on the Earth and I will.

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Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 11, 2018, 03:50:08 AM »

I don't think you understand the point that I am trying to make.

Yes, the prime meridian is an arbitrary line of longitude. It is man-made. Humans decided to center the world around Greenwich in London. They could just have easily decided to center it around the Giza pyramids in Egypt, New York, Quebec, Tokyo, Auckland or anywhere.

The point that I am trying to make is: when you convert the Equrectangual map projection into the Peirce Quincuncial Projection you have to choose a line of longitude to center the projection. If you choose to center the map around Reykjavik in Iceland, you end up with a map projection that shows Ne Zaland as very far away from Australia. This is the image used on Wikipedia with Reykjavik in Iceland as the prime meridian of the Equrectangual map projection used to create the image.

However, if you use the real prime meridian in Greenwich London to create the Peirce Quincuncial Projection from the Equrectangual map projection. There is very small distortion to large land masses. The only areas of land that are distorted quite a lot are tiny islands in the middle of the sea.

So, it is quite a coincidence that the prime meridian that we use around the world has this property. The property of causing very little distortion when used to create the Peirce Quincuncial Projection.

Delving a little deeper, we see Greenwich chosen in 1884 and the Peirce Quincuncial Projection chosen in 1879. Just 5 years apart. That's interesting isn't it?...

I hope someone out there understands what I am trying to say. I have yet to get any feedback on this incredible coincidence and the fact that Wikipedia are showing the incorrectly calculated image.

7

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 09, 2018, 10:05:09 PM »

Can I ask you try this one if you are experimenting?
https://svs.gsfc.nasa.gov/2916

It is a very famous NASA Composite. Would be interesting to see a version in your 'flat earth' format. I think would be very pretty.

Sure man, thanks, here you go...



In my video, I mention that the Peirce Quincuncial Projection was developed by Charles Sanders Peirce in 1879 and Greenwich in London was selected as the Prime Meridian international standard in 1884. Just 5 year apart.

Greenwich in London is located on 1 of 4 lines of longitude that cause the Peirce Quincuncial Projection to distort only a few small areas of land.

Is this just a coincidence?
Is there a connection between Charles Sanders Peirce and London?

8

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 09, 2018, 06:02:34 AM »

So I've been looking for flight data to correct my map. openflights.org has lots of data on airports and routes but unfortunately, it doesn't include estimated flight times which is crucial.

They do however, have an Equirectuangual projection showing flight routes, so I have worked my Peirce Quincuncial Projection magic on this image to show exactly where my map fails.



It's interesting to see how few flights venture over the north pole.

So I really need a database of estimates flight times to continue. If any of you know about this, please let me know.

9

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 08, 2018, 07:39:36 AM »

I can't help but feeling we're getting a little off-topic here: the thread isn't about defending or proving the globe earth, it's about helping David Apple refine his proposed flat earth map.

So far we've done nicely with bringing him new information which will assist him in his project - and no doubt he's setting at it and will come back with an improved version.

But I can't help but feel this last page has been a bit of a derailment, and that it might not be better placed in a new thread.

Perhaps Tom could start one titled something like "Evidence that the globe earth isn't real" and give us something to look at.

In the meantime, I look forward to DA's updated version of his very attractive map.

Thanks Max. Yeah I'm working on it. Thanks everyone for the feedback, I don't mind reading through a few off topic posts to get some context.

10

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 06, 2018, 10:04:01 PM »

I can also fly from Santiago, Chile to Sydney Australia in about 14.5 hours (the black line on the image which is about 9 CM).
https://imgur.com/a/WASO5

Have you actually taken this journey from Santiago, Chile to Sydney Australia? Is this really possible?

Have I flown from South America to Australia in roughly 15 hours? Yes.

So with all of these international flights in the southern hemisphere that are impossible in my flat earth map, what does a map of the flat earth look like?

There is no accurate map of the flat earth that even comes close to matching real life flight/shipping times that we observe daily in real life.

We know these flight/shipping times are accurate because planes/ships have a departing date/time and an arrival date/time.

One proposed idea is that flat earth times and flat earth distances are significantly different than round earth times and round earth distances.
(so the 14.5 round earth hour south america/Australia flight is really like 30 something flat earth hours)

My idea is that in the flat earth map there is some teleportation airplanes to the opposite side of the circle when they leave the circle.

Thanks. I'll take a look at this and try to develop my 2D model. I'll try to get all of this data into a relational SQL database and try to visualize it in an application called Gephi. There must be a way of making all of this work.

11

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 06, 2018, 09:05:41 PM »

Nice: I hadn't heard of the Luanda-Sao Paolo flight before. I shall add it to my list of direct southern hemisphere flights (74+ per week last time I checked).

74+ southern hemisphere flights per week? How do you check and are you able to send me a list please?

12

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 06, 2018, 07:58:20 PM »

So with all of these international flights in the southern hemisphere that are impossible in my flat earth map, what does a map of the flat earth look like?

Does anyone have a flat earth model that works or is everyone experiencing connotative dissonance like me?

13

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 05, 2018, 11:45:21 PM »

I can also fly from Santiago, Chile to Sydney Australia in about 14.5 hours (the black line on the image which is about 9 CM).
https://imgur.com/a/WASO5

Have you actually taken this journey from Santiago, Chile to Sydney Australia? Is this really possible?

14

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 05, 2018, 11:34:25 PM »

You've raised some good points. So I will look into the sun paths and distances between countries.

Your lines (squares) of lattitude contain right angles, requiring a traveller to turn 90 degrees to maintain an east or west heading at certain points on the globe, that does not happen.

This map does show the equator as a square with right angles. However, you only have to travel slightly away from the corner positions for the lines of latitude to curve again. So with only four very small points on the map causing the line of lattitude to turn exactly 90 degrees, in the middle of the sea, this could be covered up.

15

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 05, 2018, 10:05:13 PM »

Yes, looking deeper into flight paths is the logical next step. I'm already looking into this having published the map. Thanks for the feedback.

You may also want to research more about how flights are tracked when they are over the southern hemisphere oceans, as what you're saying in the video is inaccurate.

Information isn't hidden, it's unavailable.

Nor are planes tracked by GPS, but rather by ADS-B and radar.

16

Flat Earth Investigations / Re: Peirce Quincuncial Projection

« on: June 05, 2018, 10:03:17 PM »

Thanks for the feedback and support. I really appreciate it.

For a first go, its a very good one.

Ignore this ...

A bit more research and investigation, I reckon, if you want to be taken seriously.

Focus on this ...

but props for you for actually trying to create a flat earth map

17

Flat Earth Investigations / Peirce Quincuncial Projection

« on: June 05, 2018, 05:30:52 PM »

I've just joined this forum to post my first flat earth video. I propose that the Peirce Quincuncial Projection is an accurate map of the flat earth. Please watch this video and let me know your thoughts. I welcome feedback.