As a student of physics and maths, I found this website and was just wondering how you could ignore the vast weight of scientific evidence? This is kind of like the MMR and autism link.... Which has been subsequently destroyed by a vast number of trials. But lets talk "real".
So as a "Flat earther". You must surely claim that physics and maths are wrong (Planetary motion, Keplers laws, Newtons laws, to name a few). And then you must also believe that all man made satellites... are fake. All satellite based technology is a fraud? Also all observations from high altitudes are somehow flawed. Okay, so going along those lines, I thought how could I look outside and see if this society is onto something. Another fraud would be round the world travel I suppose, no flying or sailing around the world. Gravity is also a myth in your view, as a flat earth would not have a correct gravitational field. I think the explanation of gravity is that the flat earth moves upwards at 9.8ms^-1 or something along those lines. (Which makes no sense as velocity is not the same as acceleration- which is caused by a force- yep gravity)
Right, well I'll start with the moon, a fairly common sight in the night sky. You can get a stopwatch and figure out how long it takes for the moon to orbit the earth quite easily. In fact, it's 27.32 days, a month. This is the period of the moon (T). Handy that. The distance (Or radius r) of the moon to the earth is about 3.84x10^8 metres. The ancient greeks had calculated this and so can you (
http://io9.com/5688939/how-to-measure-the-distance-from-the-earth-to-the-moon) or (
http://galileoandeinstein.physics.virginia.edu/lectures/gkastr1.html). That is an experiment that you yourself can do, so no trickery here. Using this data, you can calculate the speed (v) of the moon in its orbit where v=2 x pi x r divided by T. Now centripetal acceleration comes into play, as for the moon to orbit the earth it must have a constant acceleration towards the earth. If there was no centripetal acceleration, say goodbye to the moon as it's just going to fly off in a straight line. But... what causes that acceleration? A force. Newtons laws of motion remain one of the greatest mathematical works in history. They have been proven time and time again, so lets not argue over that. The force between the earth and moon can be calculated quite simply with some light maths. So how can you then claim there is no such thing as gravitational attraction? One of the four fundamental forces in our universe yet you claim it is a lie. I understand why you have to say this, because if gravity is real, your idea of the sun orbiting the earth will look quite silly. A mass that is ridiculously larger than the earth orbiting us? No, that is not how it works, the large mass has smaller masses orbiting it. Wait... That almost sounds like the moon orbiting the earth.
Now. I am trying to avoid being rude with this post, as then you won't take this as seriously. But the thing is... You can do the maths yourself! Just look up at the stars and planets in the night sky. Buy yourself a telescope and watch how Jupiter and its many moons travels in the night sky. Take notes on where it is every night and calculate the distance of Jupiter from the sun if you really need the confirmation. Oh that's a good point, Jupiter has moons orbiting it, but the earth is the centre of the universe for flat earthers. Just try and claim that Isaac Newton was wrong, because there is so much evidence that you would drown in the numbers. And then explain some other points, fusion for one. How is the sun still burning if fusion is not a thing. Do you think the atomic structure is wrong? Explain how nuclear reactors use fission if the sun is 300 miles or something away.
Final note, the flat earth society claims these bold ideas and uses maps to "prove" they are right. Okay, so use your hypothesis (And yes, it is a hypothesis) to answer some fairly simple questions. 1. Why is redshift/atomic spectra wrong (From looking at other galaxies and stars etc). 2 Gravity (The whole force). 3 Star formation....Without gravity. 4 Fairly simple things like a boat disappearing from view. 5 What the heck is that ice wall you talk about, the one nobody has ever seen
-Alex