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Flat earth evidence

ecco

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Sir, truly where do you get your notions from?
Many, many sources. These do not include the bible, psychics, astrologers, or conspiracy websites. I do believe that at least two of these are your primary source of information.

Let's cut to the chase...
What would convince you that the earth is a sphere?
 
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lasthero

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A fantastic question which is a bit of a head-scratcher at first, but can be explained when understanding that momentum is conserved.

First, a little experiment. Stand up and jump. Now, did the wall of your house splatter into you at 1000mph (exact speed obviosuly depends where you are in the world). No? Good. The reason is that although the Earth is moving and everything on the Earth is moving with it and has momentum. Imagine an observer in a spaceship far enough away from the Earth so it's not moving and they're watching the Earth rotate before them. To their point of view your jump doesn't actually follow a straight line, it follows a parabola. During your little jump your initial takeoff spot is about quarter of a mile away, but the Earth has moved exactly the same amount as well because you were already moving at the same speed as the Earth when you took off.

It's the same idea as if you are in a car travelling down the road at 60mph. If you toss something up in the air, does it shatter through the back window? No, because it it travelling at the same speed as the car and momentum is conserved.

When it comes to planes, it's important to remember that when it's sitting on the ground it has momentum because it's rotating with the Earth. When it takes off we know that momentum has to be conserved, allowing it to fly to its destination without the Earth rotating away underneath it. The atmosphere also (pretty much) rotates with the Earth again allowing the plane to fly.

A plane flying in the same direction that the Earth rotates may actually get to its destination quicker because the atmosphere is rotating in the same direction.

This is about as far as my physics goes before my head hurts!

I've seen this explained to flat earthers so many times, and it just boggles my mind everytime. It's so obvious. Just...how can you live on this planet and not understand how something you see everyday works?
 
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lasthero

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Have you ever been to Antarctica. If you believe you can wander there freely without being shot at go try it. Its off limits. The expeditons only cover a tiny part of Antarctica. There are parts only a handful of human beings will ever see because the weather is so rough out there and unfit for human survival

Hm. Too bad planes don't exist. If we had planes, we could just, you know...fly over it.

But we don't have planes.

More's the pity.
 
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SkyWriting

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the earth does not spin or move

Which parts do not? I'd like to live there.

a27_17907251.jpg


https://www.google.com/search?q=ear...ChMIvafvna-FyAIVBtgeCh0zrwG8&biw=1494&bih=771
 
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SkyWriting

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thanks for your answer, but it does not really answer my question about the earth spinning affecting plane flying times

Planes flying times are just like you in a bus.
As long as the greyhound bus is moving at a steady speed
you can walk from the front to the back in the same
amount of time. If the bus is accelerating your
walk to the front will be a challenge and your
walk to the back...pretty quick.

But as long as the speed is steady, you won't
know the difference between 5 miles per hour
or 100 miles per hour. Your walk from the
front of the bus and back again will be equal in time.

Perhaps if the bus gets up to the speed of light
things may change slightly.
 
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florida2

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Thanks for your explanations and being patient to explain them to me, Florida 2. I will certainly consider them. I think you like most human beings just want the truth and like any decent human being want everyone to see this. God bless you

No worries. I like answering genuine questions with genuine answers. There are plenty of people who ask questions on here because they want to try and catch scientists out or prove a silly point - people who ask questions because they genuinely want to learn is a sadly unusual thing.
 
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Astrophile

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Its likely that what those who visit Antarctica see is what the 'powers that be' want them to see and no more. Antarctica in truth is heavily guarded (armed) and no one (other than the authorised people in International governments) can wander freely there.

Do you think that Roald Amundsen (1872-1928), R.F. Scott (1868-1912) and Ernest Shackleton (1874-1922) were prevented from exploring Antarctica by armed guards and International governments?
 
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SkyWriting

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Something occurs to me.

Let's say the Earth is flat - IT'S NOT, but let's just for the sake of argument say it is.

The earth is .0126262 % not flat or .01% out-of-flatness.
It's mostly flat. People talk as if it was flat. Our language
is still oriented to a flat earth. Airplanes fly as if it was flat.
It's mostly flat from any human perspective. Except
there really is no "Flat" piece of land anywhere.
Everywhere you go is up or down sloped.
The salt flats of Utah are pretty flat.
 
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AV1611VET

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SkyWriting

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everybody during the time of the bible knew the earth was flat and under a firmament. Science has an agenda to undermine God and christianity. One of the ways it does this is by saying earth is a globe and moving. There is no biblical evidence of a globe that is spinning at 1000 mph and moving in orbit at many times this speed. People have been programmed (brainwashed) through the education system to believe a globe earth theory. They cannot think outside their western education and mindset, not just in this area but in other areas of their lives. This is why I am getting such an aggressive reaction towards perfectly legitimate questions about thestate of our earth. Goodness help me if I start discussing capitalism and democracy!!!

When Johannes Kepler was born in the late sixteenth century, scientists believed that planets in the solar system traveled in circular orbits around the Earth. The occasional problem was solved by the addition of miniature circles test — epicycles — to planetary paths. But Kepler not only adamantly defended the idea that planets orbit the sun, he also revealed that their paths were not perfect circles. http://www.space.com/15787-johannes-kepler.html
 
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Astrophile

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It really puzzles me that how could any one in the OT time ever SAY that the earth is not flat?
The simplest demonstration, which was used by Aristotle (384-322 BC), is that the Earth's shadow on the Moon during a lunar eclipse is always curved. Lunar eclipses are common, and people in Old Testament times must have seen them, and could thus have inferred that the Earth is not flat.
 
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juvenissun

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The simplest demonstration, which was used by Aristotle (384-322 BC), is that the Earth's shadow on the Moon during a lunar eclipse is always curved. Lunar eclipses are common, and people in Old Testament times must have seen them, and could thus have inferred that the Earth is not flat.

This is great. Thanks.
But you also suggested that we did not know the reason of lunar eclipse until A.D. 1500 or later?

If people knew the surface of earth is curved at the time Aristotle, then why would knowledgeable church people still prohibited the idea in Medieval time? If people didn't recognize it regardless of Aristotle, then how could people in OT time know it?
 
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Astrophile

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This is great. Thanks.
But you also suggested that we did not know the reason of lunar eclipse until A.D. 1500 or later?

Did I? When did I suggest that? If I said that, I was wrong. I think that Babylonian astronomers understood the causes of eclipses before 500 BC, and used eclipse observations to improve their knowledge of the movements of the Sun and the Moon.

If people knew the surface of earth is curved at the time Aristotle, then why would knowledgeable church people still prohibited the idea in Medieval time? If people didn't recognize it regardless of Aristotle, then how could people in OT time know it?

I don't know whether Mediaeval scholars denied that the Earth's surface was curved. I thought that educated people at that time accepted that the Earth was a sphere. Can you give me the source of your information?

If people didn't recognize it regardless of Aristotle, then how could people in OT times know it?

It depends what you mean by OT times; some of the books of the Old Testament were written after the time of Aristotle (384-322 BC).

According to the book Flat Earth by Christine Garwood, Pythagoras (ca. 582-500 BC), who travelled in Babylonia and Egypt, is said to have proposed that the Earth was a globe floating freely in space. Pythagoras lived at the same time as the Jewish exile in Babylon, so he was certainly alive in Old Testament times.
 
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juvenissun

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According to the book Flat Earth by Christine Garwood, Pythagoras (ca. 582-500 BC), who travelled in Babylonia and Egypt, is said to have proposed that the Earth was a globe floating freely in space. Pythagoras lived at the same time as the Jewish exile in Babylon, so he was certainly alive in Old Testament times.

OK, thanks. I am skeptical on what you said. But it is a piece of information. Thanks again.
 
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