Lake Pontchartrain Causeway Proves The Curvature Of The Earth

The Lake Pontchartrain Causeway, near New Orleans, Louisiana, in the United States of America, proves the curvature of the earth. At points along the causeway the shore will be obscured by the curvature of the earth. All that you will see on the horizon in all directions will be where water and sky meet.  This also disproves the flat earth "The horizon is  just an indistinct  blur which fades away at an infinite distance" since the horizon can be clearly seen as the line where water and sky meet in all directions.

The distance to the horizon can also be calculated by a simple bit of mathematics.The higher the observer, the farther the distance to the horizon will be observed.

http://googlesightseeing.com/2011/07/the-worlds-longest-cross-sea-bridge%e2%80%a6-or-is-it-jiaozhou-bay-bridge/

Caveat:I would guess fe will  try to disprove this  by their distrust in photographs. I would suggest they check this out for themselves. Also see if they can "recover with a telescope" the shore line from the mid-point of the causeway.

Lets see the FEs get passed this one.

The images from the OP's link look like the bridge sides simply converge due to perspective.  I am not sure what the point of this thread is.  Are you trying to prove that the Earth is flat? 

The only thing this proves is you are desperate for proof and throw anything out there without thinking. Flat Earthers have been asking balltards why ships can see lighthouses from sometimes over a hundred miles away for years. You do understand that they would be miles under the "curve" by then do you not? That is why only a few are even bothering to reply to this stupid and childish point. I would not have bothered but you mocking and proud tone compelled my response. Go study how far lighthouses can be seen and the math that is one of the ball earth greatest flaws before you embarrass yourself any further. Balltarddeness Maximass point for you.

ships can see lighthouses from sometimes over a hundred miles away for years.

I wonder, what passes for evidence for this claim? Purely anecdotal? Or do you have something like a geolocated photo which verifies it?

The only thing this proves is you are desperate for proof and throw anything out there without thinking. Flat Earthers have been asking balltards why ships can see lighthouses from sometimes over a hundred miles away for years. You do understand that they would be miles under the "curve" by then do you not? That is why only a few are even bothering to reply to this stupid and childish point. I would not have bothered but you mocking and proud tone compelled my response. Go study how far lighthouses can be seen and the math that is one of the ball earth greatest flaws before you embarrass yourself any further. Balltarddeness Maximass point for you.

Meh? you need to read some more, I have studied flat earth claims for lighthouse distances, and they all work out correctly. 

I've yet to see a flat earther  that actually knows how to do curvature calculations.   mostly they just use the  h=0.666m²  without understanding you should be looking at mid point obstruction. 

 I have studied flat earth claims for lighthouse distances, and they all work out correctly.

Show me this proof. I think you are talking big. The math is the math. Oh wait, are you using the new shape of the earth as explained by Neil DeGrasse Tyson? It's spheroid, pear shaped, chubby thing. Bullshit, the lighthouse proof is solid and if you studied it you know that.
At least be honest like the textbook writers and admit you don't know. SHOW ME these proofs you speak of.

I have studied flat earth claims for lighthouse distances, and they all work out correctly.

Show me this proof. I think you are talking big. The math is the math. Oh wait, are you using the new shape of the earth as explained by Neil DeGrasse Tyson? It's spheroid, pear shaped, chubby thing. Bullshit, the lighthouse proof is solid and if you studied it you know that.
At least be honest like the textbook writers and admit you don't know. SHOW ME these proofs you speak of.

Ask any sailor about the old "sinking ship that passes over the horizon" and ask them how many times they have "restored the ship to view with a telescope once it has passed over the horizon." Ask them how far out to sea they can  see land ?
I wonder how many sailors are true flat-earth believers ?

Or for that matter just ask any sane person if the earth is a globe or a flat disc.

I see we have another classic example of flat earth denial of actuality....If not just a classic flat earth believer pretender.
I'm not sure of which type are most of the so-called flat earthers on this forum. Or maybe they're just here for the fun of it like some of us ? LOL

Lets see the FEs get passed this one.

It gets funnier each time you present something like this. LOL

. . . . . . . . . . . . . .

Oh wait, are you using the new shape of the earth as explained by Neil DeGrasse Tyson? It's spheroid, pear shaped, chubby thing.

. . . . . . . . . . . . . .

You FlatHeads do like taking comments out of context don't you? You did I suppose hear a bit of the context!
Don't make yourself look foolish with statements like this: Neil DeGrasse Tyson says "It's spheroid, pear shaped, chubby thing."
Just look at what he did say:

So in fact the earth is kind of pear shaped. So that's the shape of the earth. But how pear shaped is it? If you held Earth out here and looked at it, if you used Earth as a model for a cue ball in a pool table, it would be the smoothest cue ball anyone ever made. So these variations from the equator to the poll and from below the equator to the equator are so small that it would make no difference to you if I handed you that sphere with that shape. You would not be able to feel it and tell the difference.

from http://www.haydenplanetarium.org/tyson/read/2009/07/23/called-by-the-universe


BTW I thought even Calvin believed in the Globe Earth, though was vehemently against Copernicus's ideas:

"Calvin introduced his Commentary on Genesis": "We indeed are not ignorant that the circuit of the heavens is finite, and that the earth, like a little globe, is placed in the centre."

There's much more like that!

Show me this proof. I think you are talking big. The math is the math. Oh wait, are you using the new shape of the earth as explained by Neil DeGrasse Tyson? It's spheroid, pear shaped, chubby thing. Bullshit, the lighthouse proof is solid and if you studied it you know that.
At least be honest like the textbook writers and admit you don't know. SHOW ME these proofs you speak of.

Here is a plot of lighthouse visibility versus height of the light above sea level,   taking into account standard correction for refraction and a bridge height of 30 ft above the water line.



The formula for calculating distance to the horizon, including refraction correction for standard atmosphere  is  D =  3.86 * sqrt ( h )    h = height in meters,  D = distance in km.


The Planier lighthouse  is   66 meters asl,   and is visible for 43 km,   calculated distance is 43 km,   Flat Earthers claim the calculated value is 29 km
The Jeddah lighthouse      is 113 meters asl,  and is visible for 46 km,   calculated distance is 53 km,   Flat Earthers claim the calculated value is 38 km
The Ile Vierge lighthouse  is   82.5 meters asl,   and is visible for 50 km,   calculated distance is 47 km,   Flat Earthers claim the calculated value is 33 km
The Genoa lighthouse  is 76 meters asl,  and is visible for 46 km,   calculated distance is 45 km,   Flat Earthers claim the calculated value is 31 km

The conclusion is that if you do the calculations properly,  the flat earth argument,  falls flat on its face ( once again )

For details of the formula derivation go to ... 
http://www-rohan.sdsu.edu/~aty/explain/atmos_refr/horizon.html

Calculation of ducting effects. 
http://www-rohan.sdsu.edu/~aty/explain/atmos_refr/bending.html

At least be honest like the textbook writers and admit you don't know. SHOW ME these proofs you speak of.

Here is a plot of lighthouse visibility versus height of the light above sea level..... 

....  crickets ....

Quote from:  Alan Flatearth

At least be honest like the textbook writers and admit you don't know. SHOW ME these proofs you speak of.

Here is a plot of lighthouse visibility versus height of the light above sea level..... 

....  crickets ....

Lotsa crickets.

The below chart shows the curvature of the earth.
The Lake Pontchartrain  Causeway is 23.9 miles long.
So that at the midpoint you would not see any thing higher than 100 feet on the horizon. Of course these figures are from viewing at water level so they would be  slightly different from an observer on the roadway on the causeway but illustrate why you only see water and not shore line on the horizon as you proceed on the causeway.


 Distance Height
 Miles      Feet
--------------------------
  1.0        0.67
  1.23       1.0
  3.0        5.95
  3.9       10
  6.0       23.8

 10         66
 12.3      100

http://www.davidsenesac.com/Information/line_of_sight.html

The below chart shows the curvature of the earth.
The Lake Pontchartrain  Causeway is 23.9 miles long.
So that at the midpoint you would not see any thing higher than 100 feet on the horizon. Of course these figures are from viewing at water level so they would be  slightly different from an observer on the roadway on the causeway but illustrate why you only see water and not shore line on the horizon as you proceed on the causeway.


 Distance Height
 Miles      Feet
--------------------------
  1.0        0.67
  1.23       1.0
  3.0        5.95
  3.9       10
  6.0       23.8

 10         66
 12.3      100

http://www.davidsenesac.com/Information/line_of_sight.html

This is an incredible piece of evidence for RE, and I'd be interested to see if any FE supporters think that it's possible to recover the horizon whilst standing on the causeway by looking through a telescope.

Actually, I'd be interested if anyone, RE or FE supporter, has actually been to the causeway itself. It would be a great experiment in observation.

Quote from: Googleotomy on February 21, 2016, 06:00:27 PM

The below chart shows the curvature of the earth.
The Lake Pontchartrain  Causeway is 23.9 miles long.
So that at the midpoint you would not see any thing higher than 100 feet on the horizon. Of course these figures are from viewing at water level so they would be  slightly different from an observer on the roadway on the causeway but illustrate why you only see water and not shore line on the horizon as you proceed on the causeway.




 Distance Height
 Miles      Feet
--------------------------
  1.0        0.67
  1.23       1.0
  3.0        5.95
  3.9       10
  6.0       23.8

 10         66
 12.3      100

http://www.davidsenesac.com/Information/line_of_sight.html

This is an incredible piece of evidence for RE, and I'd be interested to see if any FE supporters think that it's possible to recover the horizon whilst standing on the causeway by looking through a telescope.

Actually, I'd be interested if anyone, RE or FE supporter, has actually been to the causeway itself. It would be a great experiment in observation.

Although I am sure that flat earthers would deny it as they do with anything involving photographic evidence, you can observe this by taking a "virtual trip"on the causeway by means of google maps street views. However, the cameras on google maps are of such a wide angle nature that they do give an exaggerated view of distances.

But the chart listed was factual and proven evidence , which is something flat-earthers never seem to have at their disposal. LOL. Such as a flat earth map for a beginning.

We are planning a trip from  Texas to Florida next year. I am planning to intend to take a round trip on the causeway to observe this first hand. For the present, I am satisfied with reports from ordinary tourists.

Quote from: UltimateTemplar on February 21, 2016, 06:29:59 PM

Quote from: Googleotomy on February 21, 2016, 06:00:27 PM

The below chart shows the curvature of the earth.
The Lake Pontchartrain  Causeway is 23.9 miles long.
So that at the midpoint you would not see any thing higher than 100 feet on the horizon. Of course these figures are from viewing at water level so they would be  slightly different from an observer on the roadway on the causeway but illustrate why you only see water and not shore line on the horizon as you proceed on the causeway.




 Distance Height
 Miles      Feet
--------------------------
  1.0        0.67
  1.23       1.0
  3.0        5.95
  3.9       10
  6.0       23.8

 10         66
 12.3      100

http://www.davidsenesac.com/Information/line_of_sight.html

This is an incredible piece of evidence for RE, and I'd be interested to see if any FE supporters think that it's possible to recover the horizon whilst standing on the causeway by looking through a telescope.

Actually, I'd be interested if anyone, RE or FE supporter, has actually been to the causeway itself. It would be a great experiment in observation.

Although I am sure that flat earthers would deny it as they do with anything involving photographic evidence, you can observe this by taking a "virtual trip"on the causeway by means of google maps street views. However, the cameras on google maps are of such a wide angle nature that they do give an exaggerated view of distances.

But the chart listed was factual and proven evidence , which is something flat-earthers never seem to have at their disposal. LOL. Such as a flat earth map for a beginning.

We are planning a trip from  Texas to Florida next year. I am planning to intend to take a round trip on the causeway to observe this first hand. For the present, I am satisfied with reports from ordinary tourists.

Maybe you should bring a GoPro, or stream your journey live on Twitch or something. I'd love to watch it.

I'd assume FEarthers would say that the virtual tour is indeed a fake, though I'd be hard-pressed to find a CGI program (or any program, for that matter) which can replicate the causeway that well, especially with all the little details involved. Interesting.

You could even perform the experiment yourself. Bring a powerful optical telescope with you, and try recovering the horizon whilst standing in the middle of the causeway. Just don't block the traffic 

The problem I have is finding a place to stop and observe, using a telescope.

I see there are several "cross overs" but they are all marked "emergency parking only"
and I'm not sure if you would get ticketed if you stopped there long enough to take pictures. However, you should be able to do as the google maps street view cameras do as you drive the causeway.

However, flat earthers would simply deny them as evidence.....Faked, photoshopped, et cetera, et cetera and so forth....You know !

If this website is as popular as the FES says it it is, there must be some persons on this forum who have made the trip and could post their observations.

Here are some pictures from cameras at the mid point of the causeway.
Water, water, everywhere !
I am willing to even bet that flat earthers are going to come up with "perspective", "fakes" or "photoshopped." Also taking even bets that they are going to add The Lake Pontchartrain Causeway to the ever  growing list of "The Great Round Earth Conspiracy." LOL

http://www.thecauseway.us/traffic-cams/mid-bridge-cams

Isn't that area way below sea level?

Here are some pictures from cameras at the mid point of the causeway.
Water, water, everywhere !
I am willing to even bet that flat earthers are going to come up with "perspective", "fakes" or "photoshopped." Also taking even bets that they are going to add The Lake Pontchartrain Causeway to the ever  growing list of "The Great Round Earth Conspiracy." LOL

http://www.thecauseway.us/traffic-cams/mid-bridge-cams

I feel like this is one of the most powerful trump cards in the deck of the Flat Earth supporters; the ability to state that any situation that seems to contradict their theory is actually part of the Round Earth Conspiracy. Nontheless, some good photos there, even though they are just from traffic cameras.

Isn't that area way below sea level?

No, those photos come from traffic cameras positioned on the causeway itself.

The Lake Pontchartrain Causeway, near New Orleans, Louisiana, in the United States of America, proves the curvature of the earth. At points along the causeway the shore will be obscured by the curvature of the earth. All that you will see on the horizon in all directions will be where water and sky meet.  This also disproves the flat earth "The horizon is  just an indistinct  blur which fades away at an infinite distance" since the horizon can be clearly seen as the line where water and sky meet in all directions.

The distance to the horizon can also be calculated by a simple bit of mathematics.The higher the observer, the farther the distance to the horizon will be observed.

http://googlesightseeing.com/2011/07/the-worlds-longest-cross-sea-bridge%e2%80%a6-or-is-it-jiaozhou-bay-bridge/

Caveat:I would guess fe will  try to disprove this  by their distrust in photographs. I would suggest they check this out for themselves. Also see if they can "recover with a telescope" the shore line from the mid-point of the causeway.

Somebody livestreamed himself filming this location, along with the drive to a coffee shop, and the uploading of the video to youtube, all in one shot, so I figured this thread should be bumped.

He posted a video showing the curvature, AND a video of himself recording that, then driving to a wifi place and uploading the video.





I'm guessing he's a government agent?

I actually had an FE'er on another forum tell me this video had TOO MUCH curvature so must be fake 😆

That was the only response I got, all the rest of the FE'ers avoided commenting on it.

Actually, I'd be interested if anyone, RE or FE supporter, has actually been to the causeway itself. It would be a great experiment in observation.

Does 1000+ times count?
I commuted across the lake every day for over five years and have made the trip by water dozens of times.
Have actually stopped and walked on bridge when traffic was stopped for accidents.  Nothing but water in sight until you see the TOPS of the buildings of NO break the horizon.

I must however disclose that my father was a surveyor so I am inherently part of the Grand Conspiracy. 

I have crossed that causeway for reasons of Earth shape verification.  Perspective and atmospherics proved a flat Earth by even better scientific proof than I expected.  Flat Earth confirmation came in the form of Zetetic proof, as well.

I see mention of discussing with sailors whether evidence supports a flat or round Earth.  If you go that route I recommend speaking with retired service members. There is indication that current members are compelled to avoid conversation regarding Earth shape dynamics and if discussion in unavoidable, to support the round Earth doctrine even if they know otherwise. 

   

The images from the OP's link look like the bridge sides simply converge due to perspective.  I am not sure what the point of this thread is.  Are you trying to prove that the Earth is flat? 

Are we in for yet some other adhoc stuff by you, Jroa?
Can't wait tbh, it's been almost weeks since your last showing. Just go forth. 

I have crossed that causeway for reasons of Earth shape verification.  Perspective and atmospherics proved a flat Earth by even better scientific proof than I expected.  Flat Earth confirmation came in the form of Zetetic proof, as well.

Care to elaborate at all?

Quote from: gotham on August 10, 2017, 01:40:34 PM

I have crossed that causeway for reasons of Earth shape verification.  Perspective and atmospherics proved a flat Earth by even better scientific proof than I expected.  Flat Earth confirmation came in the form of Zetetic proof, as well.

Care to elaborate at all?

Certainly so but I must ask...given truthful evidence, do you have the capacity to comprehend that the Earth could be flat?  I don't want to waste your time or mine trying to convince the inconvincible.   

Quote from: JackBlack on August 10, 2017, 03:00:28 PM

Quote from: gotham on August 10, 2017, 01:40:34 PM

I have crossed that causeway for reasons of Earth shape verification.  Perspective and atmospherics proved a flat Earth by even better scientific proof than I expected.  Flat Earth confirmation came in the form of Zetetic proof, as well.

Care to elaborate at all?

Certainly so but I must ask...given truthful evidence, do you have the capacity to comprehend that the Earth could be flat?  I don't want to waste your time or mine trying to convince the inconvincible.

Yes I do, given truthful evidence, preferably backed up rather than just a claim.