The Flat Earth Society

Flat Earth Discussion Boards => Flat Earth Community => Topic started by: Undecided on April 29, 2016, 07:12:49 PM

Title: Curvature ?
Post by: Undecided on April 29, 2016, 07:12:49 PM
I took this photo on holiday recently. If you compare the balcony rail of my hotel room to the surface of the sea, you can see that it curves compared to the straight balcony rail.

Just wondering what you guys think ?

This is using the cameras panoramic function where you move the camera from left to right as it can't fit the whole image in a normal shot.

(http://i1196.photobucket.com/albums/aa404/ftfcred/Curve_zpsm5zdwha4.jpg) (http://s1196.photobucket.com/user/ftfcred/media/Curve_zpsm5zdwha4.jpg.html)
Title: Re: Curvature ?
Post by: Undecided on April 29, 2016, 07:22:42 PM
Now that I can see the image on the computer screen rather than the mobile screen, I can see that the panoramic function on the phone is distorting the image, especially the lower balcony rail. The following image is an original with no special filters used. You can see the same curvature by comparing the height of the balcony rail below the sea level right at the left hand side of the image, compared to the right hand side, I couldn't fit the whole image in from left to right, so that's why I used the panoramic function in the first place, but the curvature is still visible in this photo.

(http://i1196.photobucket.com/albums/aa404/ftfcred/Curvature%202_zpscbobuyug.jpg) (http://s1196.photobucket.com/user/ftfcred/media/Curvature%202_zpscbobuyug.jpg.html)
Title: Re: Curvature ?
Post by: Setec Astronomy on April 29, 2016, 08:18:37 PM
Now that I can see the image on the computer screen rather than the mobile screen, I can see that the panoramic function on the phone is distorting the image
[....]
but the curvature is still visible in this photo.
Rather than your deceptive sense of curvature, use a ruler or a paint program to draw a straight line superimposed over the water level. The railing and water level might not be exactly parallel to one another, but there is no discernable curvature.
(http://s32.postimg.org/mvav1jtn9/oceanview.gif)
Title: Re: Curvature ?
Post by: Undecided on April 29, 2016, 08:37:00 PM
Yes there is, because the right hand half of the photo,shows the water bending back down to the surface of the rail.

You can see this in the first photo, but obviously as it's been tampered with due to the panoramic setting on the camera it can't be used as evidence.

By sitting behind the rail and crouching down to be level with it, I could see that the level of water rose in the middle and fell to the left and right. I couldn't take a photo that showed this as the phone camera can't get the whole image in one shot. That's why I did the panoramic image, but obviously no one's going to believe that one as you can see the distortion clearly.

I'll have a look to see if I can find a single photo of the right hand side, but there were trees in the way, so I'm not sure if I took it this way. It was only after travelling home that I uploaded the photo to the lap top, and once on the computer screen the image distorts with the panoramic setting.

I probably won't be able to repeat the experiment until I'm next at the seaside but maybe others that read this will be able to try and see what results they get.


Title: Re: Curvature ?
Post by: Undecided on April 29, 2016, 08:54:22 PM
Rather than your deceptive sense of curvature,

Not deceptive, I could clearly see the horizon rising in the middle, and falling to the left and right but couldn't fit them in a single photo.

I can't find a single photo of the right hand side of the balcony, I only have the panoramic one. So what I'm saying is that the panoramic photo is an honest representation of what I could see with my eyes, but it has distorted the image slightly so while it is an honest image, I understand that it can't be taken as granted that it's accurate.

This isn't a case that the balcony and the horizon were not exactly parallel as the horizon bent back down to the right hand side and this can be seen in the panoramic image, distortion or not.
Title: Re: Curvature ?
Post by: Setec Astronomy on April 29, 2016, 08:58:48 PM
Far be it from me to argue with someone who is hallucinating.
Title: Re: Curvature ?
Post by: Undecided on April 29, 2016, 09:07:56 PM
Hallucinating ?

I post a couple of honest photos and explain honestly what I saw with my own eyes and I'm hallucinating ?

I expected some comments and discussion, but not this sort of personal abuse. Shame on you.
Title: Re: Curvature ?
Post by: Roundy on April 29, 2016, 10:45:51 PM
That is interesting that you see curvature in that photo. It certainly seems to be evidence of something. But I don't see any curvature, so I can't see it as evidence that the Earth is round.
Title: Re: Curvature ?
Post by: TotesNotReptilian on April 30, 2016, 12:09:14 AM
Ugh, stop trying to eyeball it and just measure it already...

(http://i.imgur.com/SC6SZRa.png)

After running it through edge detection to make marking the edge of the horizon and beams less biased:

(http://i.imgur.com/wWSzDAw.png)


Inconclusive.

If you want to draw some actual conclusions, you need to first calculate the expected curvature. Then you can compare it to a picture and determine who is right.
Title: Re: Curvature ?
Post by: model 29 on April 30, 2016, 02:40:18 AM
If the horizon is the same distance away from left to right, then how much curvature does one expect to see from that elevation on a round Earth?
Title: Re: Curvature ?
Post by: Undecided on April 30, 2016, 07:43:57 AM
Ok guys, way too technical for me.

I wasn't posting this as conclusive proof that the world is round, I just took this photo and thought I'd share it with you to see what you thought.

With the naked eye you could see the surface of the sea rising a little in the middle of the view compared to the left and right and I did my best to capture it with a smart phone.

As for the distance to the horizon, there was no way for me to work out my altitude above sea level so there's no point in even trying to do the maths. It would just be guessing.

It's a repeatable experiment that anyone can do while at the coast though. n
Title: Re: Curvature ?
Post by: TotesNotReptilian on April 30, 2016, 08:22:49 AM
If the horizon is the same distance away from left to right, then how much curvature does one expect to see from that elevation on a round Earth?

Assuming:
90 degrees horizontal FOV
60 degrees vertical FOV
576 vertical resolution
The horizon is in the middle of the image to avoid optical distortion

The difference in height of the horizon from the middle of the picture to the edge of the picture doesn't even reach 1 pixel until the observer is 65 meters above sea level.

height (meters) -> change in height of horizon (pixels)
10 -> .4
100 -> 1.3
1000 -> 4
10000 -> 13

You have to get up pretty high to see any curvature. For example, this image (https://southsudanmedicaljournal.files.wordpress.com/2012/01/img_0430.jpg) taken at 6000 m (according to the source), with an iPhone 4 (according to the jpeg metadata).

60.8 degrees by 47.5 degrees FOV
1256 verticle resolution
6000 meters

I calculate that we should expect 10 pixel difference in height in the middle of the horizon if the earth is round. 0 if the earth is flat.


(http://i.imgur.com/sQehr7D.jpg)

I count 13 pixel difference in height in the middle of the horizon.

Conclusion:
My round earth estimate was a bit low, but pretty close. If the picture was actually taken at 9000 meters instead of 6000 meters, my estimate would have been correct. Maybe they made a bad height estimate?
Title: Re: Curvature ?
Post by: rabinoz on April 30, 2016, 11:15:59 AM
If the horizon is the same distance away from left to right, then how much curvature does one expect to see from that elevation on a round Earth?
Well, my answer would be that since the horizon would be exactly the same distance in ever direction (symmetry), there is no curvature to be seen.

What the would be on the Globe is a dip angle to the horizon. From a few feet above sea level this is minuscule.

But early ship's navigators had to allow for it in taking sun or star fixes. An error in angle of one minute of arc can lead to a position error of up to one nautical mile. Yes, practical navigation instructions include this Piloting and navigation (http://www.sailingissues.com/navcourse5.html).
Funny how all these navigators think the Earth is a Globe.
You would think someone from TFES would let them know they don't have to bother with all this complicated Globe stuff.  ::)
Title: Re: Curvature ?
Post by: TotesNotReptilian on April 30, 2016, 09:21:56 PM
If the horizon is the same distance away from left to right, then how much curvature does one expect to see from that elevation on a round Earth?
Well, my answer would be that since the horizon would be exactly the same distance in ever direction (symmetry), there is no curvature to be seen.

No, there is definitely curvature to be seen if you are high enough. The horizon forms a circle around you. If you are exactly in the middle of the circle, it just looks like a straight line. If you are above the circle, then you can see the actual curve of the circle. It's a bit complicated to calculate though.
Title: Re: Curvature ?
Post by: rabinoz on May 01, 2016, 12:12:54 PM
If the horizon is the same distance away from left to right, then how much curvature does one expect to see from that elevation on a round Earth?
Well, my answer would be that since the horizon would be exactly the same distance in ever direction (symmetry), there is no curvature to be seen.

No, there is definitely curvature to be seen if you are high enough. The horizon forms a circle around you. If you are exactly in the middle of the circle, it just looks like a straight line. If you are above the circle, then you can see the actual curve of the circle. It's a bit complicated to calculate though.
Yes, if you are high enough, but the the picture I was referring to was taken only a small distance above sea level.
Title: Re: Curvature ?
Post by: TheTruthIsOnHere on May 02, 2016, 03:26:11 PM
If the horizon is the same distance away from left to right, then how much curvature does one expect to see from that elevation on a round Earth?
Well, my answer would be that since the horizon would be exactly the same distance in ever direction (symmetry), there is no curvature to be seen.

No, there is definitely curvature to be seen if you are high enough. The horizon forms a circle around you. If you are exactly in the middle of the circle, it just looks like a straight line. If you are above the circle, then you can see the actual curve of the circle. It's a bit complicated to calculate though.
Yes, if you are high enough, but the the picture I was referring to was taken only a small distance above sea level.

I'm definitely not high enough for this shit anymore lol
Title: Re: Curvature ?
Post by: geckothegeek on May 04, 2016, 08:44:07 PM
That is interesting that you see curvature in that photo. It certainly seems to be evidence of something. But I don't see any curvature, so I can't see it as evidence that the Earth is round.

If you are near the level of the sea, you really can't see much curvature of the horizon itself.

The real evidence of the curvature of the earth is in .:
(1)  The horizon is a distinct line where sea and sky meet.  That immediately  disproves  tbe flat earth idea that "the horizon is an indistinct blur that fades away in  the distance at some infinite distance."
(2) The distance to the horizon can be estimated. The higher you are, the farther you can  see to the horizon.
(3) Unless there is something high beyond  the horizon , you can not see objects beyond the horizon.
I could go further, but these are just a few examples of the curvature of the earth which proves the earth is not flat.
If the earth was flat, the distance you could see would be as far as the "thickness of the atmoplane" permitted.
Title: Re: Curvature ?
Post by: TheTruthIsOnHere on May 05, 2016, 12:14:01 AM
That is interesting that you see curvature in that photo. It certainly seems to be evidence of something. But I don't see any curvature, so I can't see it as evidence that the Earth is round.

If you are near the level of the sea, you really can't see much curvature of the horizon itself.

The real evidence of the curvature of the earth is in .:
(1)  The horizon is a distinct line where sea and sky meet.  That immediately  disproves  tbe flat earth idea that "the horizon is an indistinct blur that fades away in  the distance at some infinite distance."
(2) The distance to the horizon can be estimated. The higher you are, the farther you can  see to the horizon.
(3) Unless there is something high beyond  the horizon , you can not see objects beyond the horizon.
I could go further, but these are just a few examples of the curvature of the earth which proves the earth is not flat.
If the earth was flat, the distance you could see would be as far as the "thickness of the atmoplane" permitted.

He could go further, but he's waiting for rabinoz to come up with some more ideas for him.
Title: Re: Curvature ?
Post by: geckothegeek on May 05, 2016, 01:26:40 AM
That is interesting that you see curvature in that photo. It certainly seems to be evidence of something. But I don't see any curvature, so I can't see it as evidence that the Earth is round.

If you are near the level of the sea, you really can't see much curvature of the horizon itself.

The real evidence of the curvature of the earth is in .:
(1)  The horizon is a distinct line where sea and sky meet.  That immediately  disproves  tbe flat earth idea that "the horizon is an indistinct blur that fades away in  the distance at some infinite distance."
(2) The distance to the horizon can be estimated. The higher you are, the farther you can  see to the horizon.
(3) Unless there is something high beyond  the horizon , you can not see objects beyond the horizon.
I could go further, but these are just a few examples of the curvature of the earth which proves the earth is not flat.
If the earth was flat, the distance you could see would be as far as the "thickness of the atmoplane" permitted.

He could go further, but he's waiting for rabinoz to come up with some more ideas for him.

I could go on further, but I'm no expert and I would suppose rabinov can come up with more facts than I can think of off hand. LOL
I do admit to the fault that I try to post only facts which I know are true and reasoably accurate.

Tell you what, flat earthers.
I will make a deal with you.
In the future I will post only one "round earth" fact that I can back up with evidence or reference material for every "flat earth" idea that you can do the same to back it up.

Let's start with the horizon.
Your turn.You go first.

If rabinov wants to jump in here, he can take my turn. LOL.

Title: Re: Curvature ?
Post by: rabinoz on May 05, 2016, 03:47:46 AM
That is interesting that you see curvature in that photo. It certainly seems to be evidence of something. But I don't see any curvature, so I can't see it as evidence that the Earth is round.

If you are near the level of the sea, you really can't see much curvature of the horizon itself.

The real evidence of the curvature of the earth is in .:
(1)  The horizon is a distinct line where sea and sky meet.  That immediately  disproves  tbe flat earth idea that "the horizon is an indistinct blur that fades away in  the distance at some infinite distance."
(2) The distance to the horizon can be estimated. The higher you are, the farther you can  see to the horizon.
(3) Unless there is something high beyond  the horizon , you can not see objects beyond the horizon.
I could go further, but these are just a few examples of the curvature of the earth which proves the earth is not flat.
If the earth was flat, the distance you could see would be as far as the "thickness of the atmoplane" permitted.

He could go further, but he's waiting for rabinoz to come up with some more ideas for him.
OK, you want curvature! As I said you just have to go high enough.
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2003.30UTC_zpstksv5rlj.png)
Himawari 2016.04.26 03.30 UTC
     
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2011.00UTC_zpsn4bm9br4.png)
Himawari 2016.04.26 11.00 UTC
Yes, about 22,236 miles is pretty good![/b]
You may or may not accept it, but that's your problem, not mine.
Title: Re: Curvature ?
Post by: TheTruthIsOnHere on May 05, 2016, 05:00:42 AM
Is it just me or does the land mass and clouds in these digital illustrations not even conform to a spherical shape? It looks more like a looking glass if anything, especially with that exaggerated glow around the perimeter which makes absolutely no sense.
Title: Re: Curvature ?
Post by: Setec Astronomy on May 05, 2016, 06:19:33 AM
OK, you want curvature! As I said you just have to go high enough.
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2003.30UTC_zpstksv5rlj.png)
Himawari 2016.04.26 03.30 UTC
     
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2011.00UTC_zpsn4bm9br4.png)
Himawari 2016.04.26 11.00 UTC
Yes, about 22,236 miles is pretty good![/b]
You may or may not accept it, but that's your problem, not mine.

If you're high enough to think those images are proof, I guess you'd believe the Star Wars planet Aldreaan is real too!
(http://vignette1.wikia.nocookie.net/starwars/images/4/4a/Alderaan.jpg)

And Star Trek's "Genesis" planet!
(http://vignette2.wikia.nocookie.net/memoryalpha/images/b/b1/Genesis2285.jpg/revision/latest?cb=20100117054752&path-prefix=en)

And perhaps this one from The Little Prince...
(http://ap1.alchetron.com/cdn/The-Little-Prince-1974-film-images-fbe4eba0-2aac-4f46-8891-38a5a3cdd92.jpg?op=OPEN)
Title: Re: Curvature ?
Post by: rabinoz on May 05, 2016, 06:27:08 AM
Is it just me or does the land mass and clouds in these digital illustrations not even conform to a spherical shape? It looks more like a looking glass if anything, especially with that exaggerated glow around the perimeter which makes absolutely no sense.
It is just you! "The land mass and clouds" is a very recent photo of the globe. To my knowledge the ones in the previous post were not retouched at at all. This one of course is.
And before you ask. Of course it is a composite photo in the sense that it is the combination of signals from a number of sensors. I believe these satellites have sensors for eight separate wavelengths, covering at least the infra-red and visible ranges.

Somehow though I don't think anything would satisfy you!
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2003.30%20UTC%20-%20circle_zpsgwdkbcvu.png)
Himawari 2016.04.26 03.30 UTC - circle
Looks pretty circular to me. Of course down the bottom right there is a little bit not lit by the sun You can see the sun's reflection just a bit above and to the left of centre.
But as I said before, I couldn't care less what you believe from now on. The most careful explanations get thrown back in my face.
Title: Re: Curvature ?
Post by: rabinoz on May 05, 2016, 08:58:38 AM
OK, you want curvature! As I said you just have to go high enough.
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2003.30UTC_zpstksv5rlj.png)
Himawari 2016.04.26 03.30 UTC
     
(http://i1075.photobucket.com/albums/w433/RabDownunder/Himawari%202016.04.26%2011.00UTC_zpsn4bm9br4.png)
Himawari 2016.04.26 11.00 UTC
Yes, about 22,236 miles is pretty good![/b]
You may or may not accept it, but that's your problem, not mine.

If you're high enough to think those images are proof, I guess you'd believe the Star Wars planet Aldreaan is real too!
(http://vignette1.wikia.nocookie.net/starwars/images/4/4a/Alderaan.jpg)

And Star Trek's "Genesis" planet!
(http://vignette2.wikia.nocookie.net/memoryalpha/images/b/b1/Genesis2285.jpg/revision/latest?cb=20100117054752&path-prefix=en)

And perhaps this one from The Little Prince...
(http://ap1.alchetron.com/cdn/The-Little-Prince-1974-film-images-fbe4eba0-2aac-4f46-8891-38a5a3cdd92.jpg?op=OPEN)

Stop being an idiot. There is one very big difference! I can see that the cloud cover on the satellite photos matches local weather here - what I see outside, and what appears on radar and weather reports (yes, I know a lot of those come from the same satellites).

Now come up with some convincing photos of the flat earth! And I won't be convinced by "lack of curvature", unless you are very high.
Come to think of it, come up with ANY convincing evidence of the Flat earth, other than "It looks flat outside my window."

Almost all Flat Earthers seem to subscribe to the reasoning "I can't understand the Globe, that proves the earth must be flat!"
Title: Re: Curvature ?
Post by: Rounder on May 05, 2016, 12:50:48 PM
Of course it is a composite photo in the sense that it is the combination of signals from a number of sensors. I believe these satellites have sensors for eight separate wavelengths, covering at least the infra-red and visible ranges.

You're right about that, the visible-light images are a three channel composite of red, blue, and green, while the infrared and the water vapor images are composites of multiple infrared wavelengths.  Color-compositing is not unique to satellite photography, either.  It is how CCD and CMOS sensors (https://en.m.wikipedia.org/wiki/Image_sensor) in all digital cameras work.  In essence, EVERY photo taken today is a color-composite photo!

But of course when most people say "composite" they're not talking about color-composite, they're talking about stitching multiple small images into one large image, which is not how the Advanced Himawari Imager (http://www.data.jma.go.jp/mscweb/en/himawari89/space_segment/spsg_ahi.html#obs) aboard these satellites is achieving the full-disk image.  The field of view is wide enough to capture the image in one shot.
Title: Re: Curvature ?
Post by: Setec Astronomy on May 05, 2016, 09:22:08 PM
Stop being an idiot.
No personal insults, please.

Quote
There is one very big difference! I can see that the cloud cover on the satellite photos matches local weather here - what I see outside, and what appears on radar and weather reports (yes, I know a lot of those come from the same satellites).
You think you recognize the clouds above your head in the picture? Do you also think you see your house in the picture?
Title: Re: Curvature ?
Post by: rabinoz on May 05, 2016, 10:16:32 PM
Stop being an idiot.
No personal insults, please.

Quote
There is one very big difference! I can see that the cloud cover on the satellite photos matches local weather here - what I see outside, and what appears on radar and weather reports (yes, I know a lot of those come from the same satellites).
You think you recognize the clouds above your head in the picture? Do you also think you see your house in the picture?
No, but what I see on the satellite photoos is consistent with what I see outside and with reports of weather fronts, Cyclone location etc.

I suppose you think they have rows and rows of graphic artists painting all these pictures (and of course all the other "real-time" satellite photos we have available) so they can publish them every 10, 30 min or so. Some of you conspiracy nuts really are something.

So many millions know about the fake Globe, but aren't telling. Do you wonder we all laugh behind your your backs, but sometimes it all spills over. Is is amusing though just thinking that you are so deluded that you think you are in a special little group that knows "THE TRUTH" and all us poor idiots are so ignorant.

::) :o Still, if it bolsters your flagging ego, it probably serbes some use.  ::) ::)

I should apologise, but comments like that simply invite more of the same.
What about you coming up with those photos supporting a flat earth. Or some sound evidence - I afraid I have NEVER seen any that is convincing.

So many of you are so negative, yet have any no sound alternative to the Heliocentric Globe.
Title: Re: Curvature ?
Post by: geckothegeek on May 06, 2016, 02:13:10 AM
Is it just me or does the land mass and clouds in these digital illustrations not even conform to a spherical shape? It looks more like a looking glass if anything, especially with that exaggerated glow around the perimeter which makes absolutely no sense.

The "exaggerated glow around the perimeter" is most likely the atmosphere.
Now show us some pictures of the so-called "atmoplane" above the so-called "flat earth".
Well.........Just show us some aerial views of the so-called "flat earth".......for a start  !
Title: Re: Curvature ?
Post by: geckothegeek on May 06, 2016, 02:38:54 AM
Stop being an idiot.
No personal insults, please.

Quote
There is one very big difference! I can see that the cloud cover on the satellite photos matches local weather here - what I see outside, and what appears on radar and weather reports (yes, I know a lot of those come from the same satellites).
You think you recognize the clouds above your head in the picture? Do you also think you see your house in the picture?
No, but what I see on the satellite photoos is consistent with what I see outside and with reports of weather fronts, Cyclone location etc.

I suppose you think they have rows and rows of graphic artists painting all these pictures (and of course all the other "real-time" satellite photos we have available) so they can publish them every 10, 30 min or so. Some of you conspiracy nuts really are something.

So many millions know about the fake Globe, but aren't telling. Do you wonder we all laugh behind your your backs, but sometimes it all spills over. Is is amusing though just thinking that you are so deluded that you think you are in a special little group that knows "THE TRUTH" and all us poor idiots are so ignorant.

::) :o Still, if it bolsters your flagging ego, it probably serbes some use.  ::) ::)

I should apologise, but comments like that simply invite more of the same.
What about you coming up with those photos supporting a flat earth. Or some sound evidence - I afraid I have NEVER seen any that is convincing.

So many of you are so negative, yet have any no sound alternative to the Heliocentric Globe.

I went to a "Star Party" at Mc Donald Observatory in Texas several years ago. They had several telescopes aimed at various objects in the night sky. NASA must have been very , very  busy painting all those pictures on those telescopes to fool people into thinking they were seeing the real thing. There was one of a nebula and one of Saturn, with its rings.
All "fake" of course because at least some FE's say planets (including the earth) don't exist.
Title: Re: Curvature ?
Post by: Setec Astronomy on May 06, 2016, 04:02:32 AM
I suppose you think they have rows and rows of graphic artists painting all these pictures (and of course all the other "real-time" satellite photos we have available) so they can publish them every 10, 30 min or so.
So you've never heard of computer animations and simulations, or deny that such things exist. Check.

Quote
So many millions know about the fake Globe, but aren't telling.
Your claim, not mine. I have no idea how many people actually know. But I can do math and think logically, and - more importantly - am willing to look at things the mainstream considers "taboo" - such as taking a closer look at the claims of "settled science".
Quote
you think you are in a special little group that knows "THE TRUTH" and all us poor idiots are so ignorant.
Interesting that you have the need to invent such scenarios. Rather than engaging in projection can you instead try to remain on topic?

Quote
photos supporting a flat earth. Or some sound evidence - I afraid I have NEVER seen any that is convincing.
So you reject photographic evidence if it contradicts your preconceived notions. For example, a view all the way across Lake Ontario, which is dismissed, ad hoc, as refraction somehow revealing scenery behind an obstacle in the way of the line of sight - even though refraction never behaves in such a way in any observable circumstance. But doctored photos that show a huge swell of water with an abrupt edge in the middle are regarded as real? Earth photos with "SEX" written in the clouds?

It's disappointing that think people continue to fall for such things even after the inconsistencies are pointed out. But those who do not receive the love of the truth will be sent a strong deluding influence that they will believe a lie (paraphrasing 2 Thessalonians 2:11).
Title: Re: Curvature ?
Post by: TotesNotReptilian on May 06, 2016, 07:58:30 PM
Quote
So many millions know about the fake Globe, but aren't telling.
Your claim, not mine. I have no idea how many people actually know. But I can do math and think logically, and - more importantly - am willing to look at things the mainstream considers "taboo" - such as taking a closer look at the claims of "settled science".

Yes yes, you are so much smarter and open minded than everyone else. Totally unrelated question: what is the standard sarcasm font for this website?

Quote
Quote
photos supporting a flat earth. Or some sound evidence - I afraid I have NEVER seen any that is convincing.
So you reject photographic evidence if it contradicts your preconceived notions. For example, a view all the way across Lake Ontario, which is dismissed, ad hoc, as refraction somehow revealing scenery behind an obstacle in the way of the line of sight - even though refraction never behaves in such a way in any observable circumstance.

Anecdotally, I have literally never seen a photo that supports a flat earth. If you have a link for this view across Lake Ontario, I would appreciate it.

Quote
Earth photos with "SEX" written in the clouds?

Ugh, Disney is at it again!
Title: Re: Curvature ?
Post by: TheTruthIsOnHere on May 06, 2016, 08:14:22 PM
Anecdotally, I have literally never seen a photo that supports a flat earth. If you have a link for this view across Lake Ontario, I would appreciate it.

Google Image Results for Toronto across lake Ontario  (https://www.google.com/search?q=chicago+across+lake+ontario&tbm=isch&imgil=IpukuQo3w9JOxM%253A%253B6uIA7p-gUJkkNM%253Bhttps%25253A%25252F%25252Fwww.youtube.com%25252Fwatch%25253Fv%2525253D1ShUmY-INVY&source=iu&pf=m&fir=IpukuQo3w9JOxM%253A%252C6uIA7p-gUJkkNM%252C_&usg=__4t3gaqch0wbW_p8o3dUf3j853Vc%3D&biw=1536&bih=754&ved=0ahUKEwji3cvfn8bMAhVJyj4KHVMZAyoQyjcIJg&ei=GfksV6LtFMmU-wHTsozQAg#tbm=isch&q=toronto+across+lake+ontario&imgrc=_)

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Earth photos with "SEX" written in the clouds?

Ugh, Disney is at it again!

So you're willing to completely dismiss it? I know you're trying to be funny or whatever, and it is troubling that animators at disney did that in a kids cartoon... but it doesn't bother you at all that it's clear as day without sex shaped clouds that a supposedly authentic photograph of the Earth from NASA has the word Sex in the clouds?
Title: Re: Curvature ?
Post by: TotesNotReptilian on May 06, 2016, 09:35:17 PM
Anecdotally, I have literally never seen a photo that supports a flat earth. If you have a link for this view across Lake Ontario, I would appreciate it.

Google Image Results for Toronto across lake Ontario  (https://www.google.com/search?q=chicago+across+lake+ontario&tbm=isch&imgil=IpukuQo3w9JOxM%253A%253B6uIA7p-gUJkkNM%253Bhttps%25253A%25252F%25252Fwww.youtube.com%25252Fwatch%25253Fv%2525253D1ShUmY-INVY&source=iu&pf=m&fir=IpukuQo3w9JOxM%253A%252C6uIA7p-gUJkkNM%252C_&usg=__4t3gaqch0wbW_p8o3dUf3j853Vc%3D&biw=1536&bih=754&ved=0ahUKEwji3cvfn8bMAhVJyj4KHVMZAyoQyjcIJg&ei=GfksV6LtFMmU-wHTsozQAg#tbm=isch&q=toronto+across+lake+ontario&imgrc=_)

Wow, excellent examples of buildings disappearing behind the horizon bottom first!

Rough calculation time:

Using the first image (https://upload.wikimedia.org/wikipedia/commons/3/33/Toronto_seen_across_lake_Ontario_from_Olcott_2.JPG), the bottom third of the CN Tower (1800 feet) appears to be obscured. So that's about 600 feet obscured by the horizon. The view was taken from Olcott Beach, 39 miles away.

From this information, we can calculate the height above water level of the person taking the picture: 54 feet. This seems reasonable if they were in a building looking out over the water. Keep in mind, this is without taking into account refraction at all. If we take into account refraction under normal conditions, we would get 9 feet. A reasonable height for someone standing on the beach.

Everything seems to be exactly as expected for a round earth. What's the problem?

Edit: Also, nice use of the classic "here, let me google that for you" response. Subtle, but snarky. I deserved that. :)
Try using lmgtfy.com or images.lmgtfy.com in the future to really crank up the snarkiness.
Title: Re: Curvature ?
Post by: Setec Astronomy on May 06, 2016, 09:40:06 PM
If you have a link for this view across Lake Ontario, I would appreciate it.

(http://i4.photobucket.com/albums/y108/RichardF/IMG_0078-2.jpg)

(https://i.ytimg.com/vi/AdKfmhuU-hQ/maxresdefault.jpg)

(http://static.panoramio.com/photos/large/83605599.jpg)

If you want to understand how mirages can obscure lower parts of scenery immediately above water, look up what "fata morgana" is. This for example is one long boat with its bottom half totally obscured by such a mirage.
(https://upload.wikimedia.org/wikipedia/commons/f/f4/Fata_Morgana_Example.jpg)
Title: Re: Curvature ?
Post by: TotesNotReptilian on May 06, 2016, 10:00:56 PM
If you have a link for this view across Lake Ontario, I would appreciate it.

[several images of Toronto]

None of these appear to be taken from across Lake Ontario. The first one appears to be taken from very high up in the middle of Lake Ontario. A helicopter perhaps? The second one appears to be taken from the South West somewhere, relatively close. The third seems to be taken from the South from over the water. If you want to prove a point, you need to specify where the picture was taken from, and why it demonstrates a contradiction with the earth being round.

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If you want to understand how mirages can obscure lower parts of scenery immediately above water, look up what "fata morgana" is. This for example is one long boat with its bottom half totally obscured by such a mirage.

Yep, those are pretty cool. I'm not sure how they are relevant though. None of the first three images demonstrate "fata morgana".
Title: Re: Curvature ?
Post by: TheTruthIsOnHere on May 07, 2016, 02:45:18 AM
How did you come to the assumption that the observer was 54 feet in the air?
Title: Re: Curvature ?
Post by: Setec Astronomy on May 07, 2016, 03:12:55 AM
Rough calculation time:

Using the first image (https://upload.wikimedia.org/wikipedia/commons/3/33/Toronto_seen_across_lake_Ontario_from_Olcott_2.JPG), the bottom third of the CN Tower (1800 feet) appears to be obscured. So that's about 600 feet obscured by the horizon.
Sky is at sunset and has a bright orange glow - but no orange light is seen at all in the incident reflections of the waves in the water. See, those are the sort of obviously F-A-K-E-D composite pictures that I am literally amazed people look at and believe are legit.

The color of a bright sunset sky should be apparent in the water too, like this:
(http://icons.wunderground.com/data/wximagenew/1/10aj/41.jpg)
Title: Re: Curvature ?
Post by: TotesNotReptilian on May 07, 2016, 03:47:20 AM
Rough calculation time:

Using the first image (https://upload.wikimedia.org/wikipedia/commons/3/33/Toronto_seen_across_lake_Ontario_from_Olcott_2.JPG), the bottom third of the CN Tower (1800 feet) appears to be obscured. So that's about 600 feet obscured by the horizon.
Sky is at sunset and has a bright orange glow - but no orange light is seen at all in the incident reflections of the waves in the water. See, those are the sort of obviously F-A-K-E-D composite pictures that I am literally amazed people look at and believe are legit.

I literally just grabbed the first image from the search results provided by TheTruthIsOnHere. There are tons more like it.

Cloudy weather + rough water = dark water. Have you ever seen a big lake or ocean before? I see views like that all the time. Anybody else who has spent enough time around large bodies of water can confirm this.

You literally just said this several posts up:
So you reject photographic evidence if it contradicts your preconceived notions.

Does the irony of this situation strike you at all?
Title: Re: Curvature ?
Post by: Setec Astronomy on May 07, 2016, 04:15:19 AM
Cloudy weather + rough water = dark water. Have you ever seen a big lake or ocean before? I see views like that all the time. Anybody else who has spent enough time around large bodies of water can confirm this.
I don't know what's wrong with you. Water surface reflects light and it should be sparkling with the color of the bright highlights glaringly visible in the sky. I live near the Pacific coast and have seen many, many sunsets over the ocean. I've seen them over bays. I've seen them over lakes.

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You literally just said this several posts up:
So you reject photographic evidence if it contradicts your preconceived notions.

Does the irony of this situation strike you at all?
If I were to have said I reject the photo simply because the lower portions of are occluded, but I didn't. The color of the bright orange highlights in the sky doesn't show in the water at all. I'd have to be an idiot to accept such a shoddy composite as real.
Title: Re: Curvature ?
Post by: TotesNotReptilian on May 07, 2016, 04:25:19 AM
How did you come to the assumption that the observer was 54 feet in the air?

Good question.

(http://i.imgur.com/uwrU8fb.png)

h_1 = 600 feet (height obscured by the horizon)
h_2 = height of observer
a = distance to horizon from h_1 (600 feet)
b = distance to horizon from h_2 (observer)
R = 20,900,000 feet (radius of earth)
a + b = 39 miles = 205,920 feet

Use this equation for calculating height based on distance to the horizon:

h = R/cos(d/R) - R

Use the inverse of that equation for calculating distance to the horizon based on height:

d = R * cos-1(R/(R+h))

First calculate a using h_1. Subtract a from 39 miles to get b. Then calculate h_2 using b.

Edit: Be careful about rounding errors. These equations are very sensitive to rounding halfway through the calculation. I suggest putting it all into the calculator in one lump. Make sure your calculator is in radian mode. Better yet, put these equations into an excel spreadsheet so you can do it quickly repeatedly.
Title: Re: Curvature ?
Post by: TotesNotReptilian on May 07, 2016, 04:47:02 AM
Cloudy weather + rough water = dark water. Have you ever seen a big lake or ocean before? I see views like that all the time. Anybody else who has spent enough time around large bodies of water can confirm this.
I don't know what's wrong with you. Water surface reflects light and it should be sparkling with the color of the bright highlights glaringly visible in the sky. I live near the Pacific coast and have seen many, many sunsets over the ocean. I've seen them over bays. I've seen them over lakes.

The tops of the clouds are bright orange, as seen from a sharp angle. But the bottom of the clouds clearly aren't. Why is it surprising that the thick clouds are blocking most of the direct light? Also, they might be using a polarizing filter. Pretty common for taking photos of sunsets.

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You literally just said this several posts up:
So you reject photographic evidence if it contradicts your preconceived notions.

Does the irony of this situation strike you at all?
If I were to have said I reject the photo simply because the lower portions of are occluded, but I didn't. The color of the bright orange highlights in the sky doesn't show in the water at all. I'd have to be an idiot to accept such a shoddy composite as real.

It just seems like you are really quick to shout "fake" for a picture randomly chosen off the internet that has no reason to be faked, and for which there are plenty of other good explanations for the lack of specular lighting.

Also, why do you keep calling it a composite? Not all fakes are composites, and not all composites are fakes. What makes you think this is a composite photo?
Title: Re: Curvature ?
Post by: totallackey on May 16, 2016, 09:46:51 PM
Of course it is a composite photo in the sense that it is the combination of signals from a number of sensors. I believe these satellites have sensors for eight separate wavelengths, covering at least the infra-red and visible ranges.

You're right about that, the visible-light images are a three channel composite of red, blue, and green, while the infrared and the water vapor images are composites of multiple infrared wavelengths.  Color-compositing is not unique to satellite photography, either.  It is how CCD and CMOS sensors (https://en.m.wikipedia.org/wiki/Image_sensor) in all digital cameras work.  In essence, EVERY photo taken today is a color-composite photo!

But of course when most people say "composite" they're not talking about color-composite, they're talking about stitching multiple small images into one large image, which is not how the Advanced Himawari Imager (http://www.data.jma.go.jp/mscweb/en/himawari89/space_segment/spsg_ahi.html#obs) aboard these satellites is achieving the full-disk image.  The field of view is wide enough to capture the image in one shot.

Horse hockey...

Did you even view the entire page you provided?