How is the Earth accelerating upwards to keep us on the ground?
How is it that one in a plane cannot see the entire earth as they should on a plane?
How is that ships disappear over the horizon? (I've heard the perspective thing and that's just stupid. Perspective doesn't change with a lens. The ship does disappear when looked through a telescope, I've done it myself)
How is a horizon possible if the sun is above us?
How is a sunset and sunrise possible if we are on a disc? On a disc, the suns light must travel through an constantly even amount of atmosphere to reach us, so it would look the same from our view morning to day. On a globe, the sun's light must travel through a much thicker layer of atmosphere at sunrise and set, which is why its so much dimmer. This would not be possible on a disc.
How are penguins documented to exist in Antarctica if no one is allowed there? How are people routinely allowed to travel to Antarctica for personal reasons if it is supposedly protected? Why isn't Antartica visible from the southern tip of Chile? They are roughly 600 miles apart, though on a disc this would not be an issue.
Why can mountaintops be seen at a horizon level?
Students have sent a camera into space and the curvature of the earth is very clearly seen. This was done privately as a class experiment. The camera they used was not a go-pro, so the fish eye lens is not possible especially since in the image, you can very clearly see no distortion of the bobblehead or it's arms. There are several other images from several people around the world that are not associated with NASA in any way. Weather balloons are relatively cheap and one can do the experiment themselves. Some canadian teens even sent a lego man into space and this picture clearly disproves and kinda of fisheye lens trickery because of the canadian flag not being distorted even though it clearly would be.
http://i.space.com/images/i/000/014/889/i02/lego-man-space-youtube-video.jpg?1327753307http://i.livescience.com/images/i/000/033/241/iFF/obama-bobblehead-mono-lake.jpg?1352481925Now, some common knowledge is that the horizon is out 4.7 km. Our eyesight is up to 48 km. Our field of vision is around 170°. Now from pole to pole, the earth is around 40,000 km. Using Pythagorean's triangle theorem, we can calculate our complete field of vision in kilometers. From left to right the horizon line is about 16km. 16 KM. That is 0.04% of the entire earth. Now, we can take this a bit further. a sphere is 360° when viewed from any angle. 0.04% of 360°, subtracted from 180° would give us the angle of deformation of the horizion we would expect to see. 0.04% of 360 is......0.1 180-0.1= 179.9° THAT is the angle of the horizon without using anything but the common knowledge of today. If you expect to see the curvature of the earth from the horizon, then you are sadly mistaken.
For your reference, here is an image of a 179° angle.
http://etc.usf.edu/clipart/32600/32657/angle_179_32657_lg.gifNow. Any responses?