what proof is there for a flat earth?

Welcome to the 21st century.

Ignorance is the only proof for a flat earth

There is NONE--that's why many serious "Flat Earthers" like it so much---It relieves them of the obligation to have to study things like gravity, orbits, astronomy, etc.---You get the idea----A "lazy mans science".

Flat earth people don't have any evidence. But they don't need any. Evidence is not required for their beliefs. All evidence against a flat earth is ignored. They don't believe the laws of physics either. Not do they believe in moon landings, space probes, satellites, or high altitude planes or balloons. 

There is no such thing as a flat earth "theory".  The earth is not flat.  That is a fantasy.  There can be no SCIENTIFIC evidence for a fantasy.  
Since the earth IS round there CANNOT be any evidence that it is NOT round.

there is zero proof, zero evidence for a flat earth.

Uh... uh.. uh.. wELL, IT's aLL mEdiA pRoPagAndA. eArTh iS fLaT bEcaUse wE sAy so.

Join us at the Flat Earth Society, we have members spread all across the globe!

There really is no proof for a flat earth.

Proofs are valid in math

I've been studying flat earthers for a few years and what I've found is somewhat startling. These are mostly grown adults with childlike mentalities. They only want to hear what agrees with what they already believe. If you try and educate them at all, they will accuse you of being a shill, a government stooge and that leaves them free to ignore whatever you say.  A standard flat earth proof usually involves a question with a fundamental flaw. They take that question to some illogical absurd point and then say "See? See? What we are told could not be true."  The fact is most of them don't have the mental capacity to understand what we are taught so these questions they come up with seem perfectly valid to them. They have chosen to imagine that NASA is nothing but a bunch of CGI artists and anything we see from NASA can't be believed. Flat earthers can not understand anything that is abstract. For instance, to a flat earther, "down" can only be one direction. So the idea that someone can be on another part of the globe and experience down as a different direction from him - well that creates a logical impossibility in his brain. They often confuse a word with the thing it represents. I remember one notable flat earthers who disbelieves in gravity went to great lengths to re-frame a "pull" force as a push from the back side. When he was done he thought he had discovered something no other physicist had ever thought of before and sincerely believed he had proven science wrong. Now, gravity exists no matter what name you choose to apply to it. And the effect of gravity exists regardless of what words you use to interpret its effects. 

The upshot of all this is in 4 years, I've not seen one stick of evidence fall in their favor. Once in 10 years there might be a weird atmospheric effect that makes something far away appear on the horizon but these are not the norm, they are the rare exception. On the other hand, if you ask a flat earther, the only evidence is in their favor and they haven't seen any proof come from us at all; never mind that we can provide thousands of pictures of the spherical earth from space and they can't seem to provide one of a flat earth...  not one...  Ever.

These are a people in deep denial who believe in a world wide conspiracy to hide the truth yada yada yada...  Oh yeah, I forgot to mention, another one of their defects is that they are terribly BAD at estimating the likelihood of one scenario over another. That's why a conspiracy where all of the news media, both print and TV is working for all of the worlds government seems to be the most likely answer to them. Best thing to do is avoid them. It has all the marking of being a cult.

There is no evidence to support 'flat earth theory'.

It's a long debunked idea that requires believing that every scientist in every country around the world is part of a massive conspiracy.

My favorite saying of the Flat Earth Society is that they 'have members all over the globe'.

Q1. “what proof is there for a flat earth?”
None.

Q2.”what scientific evidence is there to support flat earth theory?”
None.

Q3. “what can ONLY be proof of a flat earth?”
Depends what you consider to be adequate proof.  How about a personal trip into outer space to see the shape for yourself.

Q4. “ what evidence is there that CANT also be explained by spherical earth theory?”
None.

Q5. “ there are laws of physics that defy the very notion of a flat earth”
That is incorrect.  Why don't you give an example?

Q6. “,but what is there that defies the existence of a spherical eartth?”
Nothing.
___________

Note.  To be accurate, the earth isn’t perfectly spherical; it is an oblate spheroid (slightly squashed sphere).

Most of the people are simpleminded they pick and choose what they want . And ignore what they don't like 

Most can't even do simple geometry 

One proof is the statement that the photos of the earth are generally photoshopped to look round

This is because NASA said they have to cut and paste photos together to get the whole image they don't understand the statement doesn't mean the image is changed its just made up ofultiple photos of a certain area of the earth so when pasted together show the wholr

They took pictures from space, the earth is round

There is evidence that earth is flat. You have eyes, do you not notice it looks flat? There is your evidence.
Ofcoarse, evidence doesnt mean its flat. But flat is a good enough approximation for things like making buildings.

There is ~ 151 Proof for a flat earth.

There is no evidence for a flat Earth.  The real reason the Flat-Earthers think the world is flat is because the Bible says it is. 

if it was round like they say all the water would run off

earth is huge - get with the program stupid! ^_^

lol

its not possible to grasp its enormity unless you go far enoug out into space to realise just how biiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiig our planet is.

and yet, its fecking tiny in comparison to so much out there including our sun lol

When I was a kid I was told that if you dig a hole straight down through the Earth you will come out in China. Well, it seems to me that's proof for a round Earth. But as an adult, now I know that it's impossible to dig a hole anywhere near that deep. By using negative correlation, that is evidence *against* a round Earth. I rest my case.