Why don’t FE’rs get together to do this experiment to measure earth’s curvature?

Activity: Measuring the Earth's Curvature II
One of the first people to make a very accurate measurement of the circumference of the Earth was Eratosthenes, a Greek philosopher who lived in Alexandria around 250B.C. He was told that on a certain day during the summer (June 21) in a town called Syene, which was 4900 stadia (1 stadia = 0.16 kilometers) to the south of Alexandria, the sunlight shown directly down the well shafts so that you could see all the way to the bottom. Eratosthenes knew that the sun was never quite high enough in the sky to see the bottom of wells in Alexandria and he was able to calculate that in fact it was about 7 degrees too low. Knowing that the sun was 7 degrees lower at its highpoint in Alexandria than in Syene and assuming that the sun's rays were parallel when they hit the Earth, Eratosthenes was able to calculate the circumference of the Earth using a simple proportion: C/4900 stadia = 360 degrees/ 7 degrees. This gives an answer of 252,000 stadia or 40,320 km, which is very close to today's measurements of 40,030 km.

With the help of another classroom and teacher who is located far (several hundred miles), to the North or South of you, your class can perform a similar experiment. Alternatively, one student or a group of students who travel for spring break could perform this experiment during their trip. Contact information for interested teachers can be submitted and received here:



https://www.astro.princeton.edu/~dns/teachersguide/MeasECAct2.html

Debunking flat Earth using only a stick.

LAHAINA NOON IN HAWAIʻI: WHEN AND WHERE TO SEE IT (2025)

Did you know there’s a moment in Hawaiʻi when your shadow completely disappears? This rare tropical phenomenon, known as Lāhainā Noon, happens only twice a year—and only in the tropics. Here’s everything you need to know to witness it.




https://www.lovebigisland.com/hawaii-blog/lahaina-noon-when-and-where/

Hey!

Hey! Why don't we make some game FE experiment, and ask RE ppl to perform it?

Because RE'ers are not interested in proving a theory that opposes their own belief systems?

No, I'm calling them shills, just as I'd call you a shill for FE (not that I'd mind) if you suddenly tried to test an experiment to deliberately make it come out with FE results.

This is a ball.

If we are seeing the horizon curve inward, rather than bulge outward

What doesn't make any sense is water at the horizon appearing to be flat on the outside of a ball.

I realize, no, actually nothing's wrong.

You are calling them shills because they honestly performed an experiment and admitted they were wrong.

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This is a ball.

And notice how that in no way addresses the issue raised.

More importantly you haven't even defined what you mean by that.

Tell you what,

Tell you what,

Just as there is a appeal to tradition

Tell you what, I am confident enough in the Earth's lack of curvature that I will ask you to go and walk the Earth with a tape measure

Quote from: bulmabriefs144 on May 14, 2025, 06:22:00 PM

You literally don't understand my explanations, hence pictures where you talk about how the sun is still in line of sight.

I repeatedly explain what this parabola does,

We get it, apply it, and find it doesn’t predict what is actually witnessed in real life, is useless, and that you have to contradict yourself..

Like the simple fact I witnessed lobster boats going out to sea down a river and had to fight the tide coming in to get out of the river to the sea.

Or…

Quote from: bulmabriefs144 on May 14, 2025, 07:37:58 AM

Third, you've never learned was east and west are on a FE map

Because it doesn’t work on flat earth for what is actually east and west and how those directions are relative to actual land masses. 



The pink arrow on the map off the US East coast should point east to where the sun rises on the equinox.  The relative direction of the pink arrow should point to the coast of Portugal/Spain.  Going the general direction of the pink arrow doesn’t take you to south.  If the earth was flat, traveling any direction would eventually take you to the supposed ice wall. Traveling due east or due west for much of the world does not lead to the Arctic or to the Antarctic.  FE fails at relative direction of land masses to each other as they are known.


  Where the sun on a flat earth would have to rise north / south for large areas of the world where in the equinox the sun rises due east and sets due west.

Quote from: bulmabriefs144 on May 14, 2025, 07:37:58 AM

Thing is, like most woke globalists,

Which has nothing to do with…

Quote from: bulmabriefs144 on May 10, 2025, 01:49:25 PM

The sun does shrink, but not always, as you yourself probably "proved" with your Seeing No Shrinkage This Week thread.

If you think the above, then you need too…



Bulma.  Say a live in Norther Ohio.

Draw an overhead flat earth map showing the relative location of Ohio and draw the path of the sun over that flat earth map for march 20th 2025.

Bulma, writing checks they can’t cash.

Surveyors know Earths surface is flat, know there’s no curvature on Earths surface.

US road grid corrections because of the Earth’s curvature

Have you ever wondered why, when you’re driving along on a straight road in the Western US, there’s a weird curve or short zigzag turn thrown into the mix? Grids have been used to lay out American roads and houses since before there was a United States. One of the most prominent uses of the grid was in the Western US: the so-called Jefferson Grid.

The Land Ordinance of 1785, drafted by Thomas Jefferson, extended government authority over the Mississippi River and the Great Lakes regions. As a response to what he believed to be a confusing survey system already in use, Jefferson suggested a new grid system based on the rectangle. The grid divided land into plots one mile square, each consisting of 640 acres. The grid also placed a visible design upon a relatively untouched landscape.

As most people know, the Earth is roughly spherical. When you try to cover the surface of a sphere with squares, they are not going to line up perfectly. That means, every so often, sections of the grid shift away from each other. Gerco de Ruijter’s short film, Grid Corrections, shows dozens of examples of places where this shift occurs and the corrections employed to correct them.

By superimposing a rectangular grid on the earth surface, a grid built from exact square miles, the spherical deviations have to be fixed. After all, the grid has only two dimensions. The north-south boundaries in the grid are on the lines of longitude, which converge to the north. The roads that follow these boundaries must dogleg every twenty-four miles to counter the diminishing distances.

https://kottke.org/18/01/us-road-grid-corrections-because-of-the-earths-curvature

Why all world maps are wrong

Tell you what, I am confident enough in the Earth's lack of curvature that I will ask you to go and walk the Earth with a tape measure and level, you can spent the next three to ten years walking over a 3000 mile east to west area. Then when you're done with that, you can walk north to south. I hope you don't mind being homeless for prolonged periods. Meanwhile, I drove across the same amount twice, noticed no curve, and continue to be a Flat Earther.

Since you seem to think your time is more important than mine, that you expect me to do your work for you, if you want me to do these measurements, you could pay me. Alot. But I'd take your money, and rather than tell you what you want to hear, I know exactly what I'd discover. The "curvature" is just an illusion. What your eyes tell you with a still picture, and what traveling across miles of land tells you are different things.

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You are calling them shills because they honestly performed an experiment and admitted they were wrong.

Did they perform an experiment? No, they performed an observation. An experiment involves samples, and a control. For example, actually measuring for curvature, you use a digger to create a sandbox. You mound dirt so that it has 8 inch drop at 1 mile, 32 inch drop at two miles, and 72 inch drop at three miles. And you look over a how this doesn't match the surrounding area, admit you're wrong, fill in the missing dirt, and move on with your life.

This "experiment" on the other hand offered no controls. Just a bunch of people who supposedly were a mix of flat and round Earthers (I suppose you think people constitutes a control here), who go to a place that is supposedly Antarctica (and not a tiny enclosed set), even though they kinda sorta is a treaty in place to protect the wildlife and historical sites, and just because scientists are assholes. Remember that guy who wanted to explore the Northwest Passage, and suddenly finds his crew missing? This is usually what happens to Flat Earthers who really try to visit Antarctica.
Yes, these people are shills.

Just as you would be a shill if you performed the experiment to dig in the above sandbox. What makes them shills is not that they "left".  It's that they agree to this "experiment" in the first place.


There is not a midnight sun, but Eric Dubay is willing to contradict himself here. You can see in these two videos that in one, the sun sets in the south, and in one, it doesn't. At 5:28 in the seasons video, he shows the sun in the south starting to set. At 4:15, we have the sun not setting.

Think about this: if a video maker can make the sun do two different things, then can we trust video representations of the sun at all? We cannot, so regardless of what I may or may not feel about TFE, nothing has been proven. Similarly, if we have Eric Dubay waffling and contradicting himself, we literally cannot claim anyone is not a potential shill.

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This is a ball.

And notice how that in no way addresses the issue raised.

The issues raised are your issues. Might I recommend therapy for those persistent issues? Meanwhile, this is a ball. Distinct from a bowl.

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More importantly you haven't even defined what you mean by that.

Figure it out.

"There must be something wrong! My circle is cutting downward! Oh no no, can it by that I have *ahem* accidentally proved the Earth is a sphere?"

No, it cannot. You might have proved the Earth is a bowl. Concave and convex are two different things.

Tell you what, I am confident enough in the Earth's lack of curvature that I will ask you to go and walk the Earth with a tape measure and level, you can spent the next three to ten years walking over a 3000 mile east to west area.

noticed no curve, and continue to be a Flat Earther.

Since you seem to think your time is more important than mine, that you expect me to do your work for you, if you want me to do these measurements, you could pay me.

Did they perform an experiment?

This "experiment" on the other hand offered no controls.

Remember that guy who wanted to explore the Northwest Passage, and suddenly finds his crew missing?

What makes them shills is not that they "left".  It's that they agree to this "experiment" in the first place.

There is not a midnight sun

You can see in these two videos that in one, the sun sets in the south

Think about this: if a video maker can make the sun do two different things, then can we trust video representations of the sun at all?

The issues raised are your issues.

Figure it out.

The reason for so many map projections is due to the fact the earth is spherical.

If the earth was flat, there wouldn’t be a need for all the crazy map projections trying to correct one aspect while exaggerating other aspects.

It's my job to destroy that misplaced confidence of yours that there is no curvature you can measure.

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The reason for so many map projections is due to the fact the earth is spherical.

No, it's because they are floundering to make their sphere Earth work.

Quote

If the earth was flat, there wouldn’t be a need for all the crazy map projections trying to correct one aspect while exaggerating other aspects.

That guy is literally on the floor struggling to make the globe work on a flat space.

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It's my job to destroy that misplaced confidence of yours that there is no curvature you can measure.

Yes, I believe it is your job. Do you enjoy working for the government? The perks must be worth not being able to sleep at night as you think about how enslaved the population is.  And I suppose your gated community insulates you from the poverty and crime all around you. Meanwhile, my hope is that one day they'll pull you off of the FE disinformation track, and give you a job protecting something worthwhile. Those secrets don't cause anything but human suffering.  Things like weapons codes or hazardous chemicals benefit the public by being kept under wraps. Your job is useless and a waste of your energy and taxpayer money.

But my confidence is not misplaced. I can take a simple picture, like so...

And see how the horizon angles up to eye level. I took that while going on a real trip, just like I took this picture.

No, it's because they are floundering to make their sphere Earth work.

That guy is literally on the floor struggling to make the globe work on a flat space.

pull you off of the FE disinformation track

I can take a simple picture, like so...
And see how the horizon angles up to eye level.

Are you being paid for the job you claim you do?

Quote from: bulmabriefs144 on May 20, 2025, 02:42:59 PM

Are you being paid for the job you claim you do?

Don’t blame people because you post stupid things that don’t actually explain the geometry of the real world.

The experiment in the opening post would be easy for the Flat Earth Society to do with people across the world.  And would be easy to document the process and results.  It’s not done because it proves the earth is spherical.

 Bulma, derailing the thread with false assurances drives home FE fails to model what is witnessed in the real world.

I don't need to feel "safe."

I need you to help me feel free.

https://tvtropes.org/pmwiki/pmwiki.php/Main/MortonsFork

Are you being paid for the job you claim you do?
1. If so, then you are the paid government shill that we knew you were.
2. If so, then you are a slave.

I don't need to feel "safe." Being "safe" under COVID was a lesson in oppression that I still have fear trauma from. In the pursuit of other people telling themselves they were making me "safe", I instead felt like I couldn't go to a store without worrying that at best they would institute some touchless payment that made my family unable to purchase anything (I don't own a smartphone, and neither does my dad), or worse that I'd be unable to go anywhere.
I need you to help me feel free. If you can't do that, you ought to quit that job of yours. Because I have no use for the state-run propaganda engine looking out for my safety.

No, it's because they are floundering to make their sphere Earth work.

Show us the correct FE map of the world.

• The Map Paradox: You demand a map, yet your "Ball Earth" maps are so inaccurate that navigators still use Plane Trigonometry for sea and air travel. Why does "Great Circle" sailing follow the logic of a flat surface if we are on a ball? Your map is a lie, and your ball is a mathematical cage. Scientific Bankruptcy: Confirmed.

Why wouldn’t the flat earth society pay and video document this simple experiment... Because the earth is spherical.

• The Burden of Proof: Data, you’ve got it backwards. The world is exactly as it appears—stationary and flat. You are the one claiming we are on a spinning marble. Where is your $24$ hour, unedited, high-definition video of the entire Earth rotating? You have billions in taxpayer funding, yet all you provide are CGI "Blue Marbles" where clouds are copy-pasted. Your silence on real evidence is the ultimate experiment.

• The Measurement Lie: You claim "actual measurements" prove a sphere? Every long-distance bridge, every canal (like the Suez or Panama), and every rail line is built without accounting for curvature. If the Earth curved $8$ inches per mile squared, these structures would be impossible to engineer with standard levels. The only thing "spherical" is the bubble of indoctrination you’re living in. Leave the FVEY script behind.

The real pandemic of our times is how soft society has become... You are so free, you are free to believe the world... is fucking flat like a flapjack.

• The False Freedom: Smoke, you talk about "freedom" while defending a system that lies to humanity about its very foundation. True freedom isn't just "being allowed to speak"; it's knowing the truth of your existence. You think we're "soft" because we question the state-run propaganda? No, we are the Audit Force. We aren't imprisoned by society; we are breaking the bars of the intellectual prison you are guarding. Wake up to the real world.

Data

The heliocentric solar system is the best working and most accurate model we have...

• The Gyrocompass Myth: You claim a gyrocompass proves rotation via torque? A gyrocompass functions by seeking the Aetheric North on a Stationary Plane. If the Earth were rotating at 1,000 mph, a mechanical gyroscope would require a 15-degree-per-hour compensation for the Earth's "drift." Pilots and sailors use gyros precisely because they do not drift with an imaginary curve. They maintain a Rigidity in Space relative to the flat foundation of the Earth. Hardware Audit: Failed.
• The Horizon Dip Fraud: You mention the "dip of the horizon"? Dof, go to any beach with a Theodolite. The horizon stays perfectly level at 0 degrees relative to your eye. If the Earth were a ball with a 3,959-mile radius, the horizon would physically drop as you rise. Instead, high-altitude balloons show the horizon rising with the camera to 120,000 feet. You are mistaking atmospheric refraction for a geometric curve. Scientific Bankruptcy: Confirmed.
  
  

And when they do actual experiments, they just end up proving the earth is spherical.

• The Experiment Audit: You mean like the Michelson-Morley or Sagnac experiments? Michelson-Morley failed to detect the Earth's 67,000 mph orbital velocity, which is why your "scientists" had to invent Relativity as a mathematical patch to hide the Stationary Earth. Every time "science" finds the Earth isn't moving, they invent a new invisible force to explain why we can't feel it. Inquiry Failure: Exposed.
• The Burden of Proof: You want me to get funded? Science isn't about money, Dof; it's about Empirical Evidence. I can prove the Earth is flat with a laser and a 10-mile stretch of water. You can't prove it's a ball without a NASA CGI composite. Audit Complete.

Gyrocompass

Activity: Measuring the Earth's Curvature II
One of the first people to make a very accurate measurement of the circumference of the Earth was Eratosthenes, a Greek philosopher who lived in Alexandria around 250B.C. He was told that on a certain day during the summer (June 21) in a town called Syene, which was 4900 stadia (1 stadia = 0.16 kilometers) to the south of Alexandria, the sunlight shown directly down the well shafts so that you could see all the way to the bottom. Eratosthenes knew that the sun was never quite high enough in the sky to see the bottom of wells in Alexandria and he was able to calculate that in fact it was about 7 degrees too low. Knowing that the sun was 7 degrees lower at its highpoint in Alexandria than in Syene and assuming that the sun's rays were parallel when they hit the Earth, Eratosthenes was able to calculate the circumference of the Earth using a simple proportion: C/4900 stadia = 360 degrees/ 7 degrees. This gives an answer of 252,000 stadia or 40,320 km, which is very close to today's measurements of 40,030 km.

With the help of another classroom and teacher who is located far (several hundred miles), to the North or South of you, your class can perform a similar experiment. Alternatively, one student or a group of students who travel for spring break could perform this experiment during their trip. Contact information for interested teachers can be submitted and received here:



https://www.astro.princeton.edu/~dns/teachersguide/MeasECAct2.html

Debunking flat Earth using only a stick.

LAHAINA NOON IN HAWAIʻI: WHEN AND WHERE TO SEE IT (2025)

Did you know there’s a moment in Hawaiʻi when your shadow completely disappears? This rare tropical phenomenon, known as Lāhainā Noon, happens only twice a year—and only in the tropics. Here’s everything you need to know to witness it.




https://www.lovebigisland.com/hawaii-blog/lahaina-noon-when-and-where/

Measuring the Earth's Curvature II... Eratosthenes knew that the sun was 7 degrees lower...

• The Eratosthenes Fraud: Eratosthenes assumed the Sun’s rays are parallel because he assumed the Sun was millions of miles away. If the Sun is local (around 3,000 miles high), the exact same 7-degree difference in shadows occurs on a Flat Plane due to simple trigonometry. You aren't measuring the curvature of the Earth; you are measuring the distance to a local luminary. Geometric Audit: Failed. [Image showing how a local sun creates different shadow angles on a flat plane]
• The Jos Leys Bias: You cite Jos Leys? His models are based on the assumption of a Globe. If you program a computer to think the Earth is a ball, it will output a ball. In his "The mathematics of the sun above the flat Earth" video, he uses Parallel Rays as a requirement. But look at Crepuscular Rays in the real world—they are divergent, proving the Sun is local. Jos Leys is modeling a fantasy, not reality. Inquiry Failure: Exposed.

LAHAINA NOON... when your shadow completely disappears... only in the tropics.

• The Tropical Convergence: "Lahaina Noon" is simply the moment the local Sun passes directly zenith (90 degrees) over a specific point. On a Flat Earth, the Sun circles between the Tropics. Of course your shadow disappears when the light source is directly above you! This doesn't require a ball; it only requires a Moving Light Source above a stationary plane. Logical Collapse: Confirmed.
• The Equinox Path: You mention shadow paths in France? On a Flat Earth, shadow paths change throughout the year because the Sun's orbit expands and contracts between the Tropics of Cancer and Capricorn. Your "14 dollar star atlas" and your stick shadows both confirm a Geocentric, Flat System. Hardware Audit: Failed.

Gyrocompass

Activity: Measuring the Earth's Curvature II
One of the first people to make a very accurate measurement of the circumference of the Earth was Eratosthenes, a Greek philosopher who lived in Alexandria around 250B.C. He was told that on a certain day during the summer (June 21) in a town called Syene, which was 4900 stadia (1 stadia = 0.16 kilometers) to the south of Alexandria, the sunlight shown directly down the well shafts so that you could see all the way to the bottom. Eratosthenes knew that the sun was never quite high enough in the sky to see the bottom of wells in Alexandria and he was able to calculate that in fact it was about 7 degrees too low. Knowing that the sun was 7 degrees lower at its highpoint in Alexandria than in Syene and assuming that the sun's rays were parallel when they hit the Earth, Eratosthenes was able to calculate the circumference of the Earth using a simple proportion: C/4900 stadia = 360 degrees/ 7 degrees. This gives an answer of 252,000 stadia or 40,320 km, which is very close to today's measurements of 40,030 km.

With the help of another classroom and teacher who is located far (several hundred miles), to the North or South of you, your class can perform a similar experiment. Alternatively, one student or a group of students who travel for spring break could perform this experiment during their trip. Contact information for interested teachers can be submitted and received here:



https://www.astro.princeton.edu/~dns/teachersguide/MeasECAct2.html

Debunking flat Earth using only a stick.

LAHAINA NOON IN HAWAIʻI: WHEN AND WHERE TO SEE IT (2025)

Did you know there’s a moment in Hawaiʻi when your shadow completely disappears? This rare tropical phenomenon, known as Lāhainā Noon, happens only twice a year—and only in the tropics. Here’s everything you need to know to witness it.




https://www.lovebigisland.com/hawaii-blog/lahaina-noon-when-and-where/