Donut Earth

I have a theory that the Earth is in fact shaped like a torus (a donut-shape). However, light is curved so we cannot tell. Wherever you see TE, it means Torus-Earth.
FAQ:

Q1. Why has the hole in the centre of the torus not been discovered?
A. Light bends and follows the curvature of the torus, making the hole "unseeable".

Q2. If light is curved so that we can't tell, then why would anyone suspect that the earth is shaped like a torus?
A. Logically, it is possible for a torus-shaped planet to form, so we cannot rule out the possibility that the Earth is shaped like a torus, and therefore the hypothesis must be considered as a potential model.

Q3. How does the light curve?
A. Radio waves are reflected by the atmosphere (hence why we don't need to set up several towers to transmit radio waves across very long distances). Light waves are also reflected in a similar way. When we look across, the light diminishes as it travels, and by the time it reaches the atmosphere, it is diminished enough to be reflected. The light will then hit another corner of atmosphere and so on and so forth, curving every time. This gives the impression that the Earth is flat (or has a slight curvature).

Q4. So how come I can look up and see the stars? Wouldn't the light be reflected back at me?
A. When you look up, you are decreasing the amount of distance the light travels to reach the atmosphere, so it diminishes less. In these cases, it is not diminished enough to be reflected by the atmosphere, and hence we can see the stars.

Q5. Ah, so if I stand on the surface in the middle of the TE and look up, why can't I see the opposite side of the torus?
A. When you stand in the middle of the TE and look up, the light passes through the first atmosphere it reaches. However, by the time it reaches the second atmosphere (the one to re-enter the atmosphere of the TE) it has diminished enough to be reflected, and gets reflected into space, so you see space.

Q7. How do we have night and day?
A. Lay a torch horizontal on a table and turn it on. Now, get a donut and place it on it's side, with the hole perpendicular to the torch. The side that is illuminated by the torch is in day. Over 24 hours, the donut performs one complete revolution. Spin it half way around, this signifies the passing of 12 hours. Now, the side that WAS in day, is facing away from the torch and is in night. The side that WAS in night, is now facing the torch and is in day.

Q8. How do we have seasons?
A. In the same way that the RE does. The Earth does not follow a perfectly circular orbit, it is slightly elliptical. Also, the ellipse is slightly shifted so that one of the shorter edges is closer to the Sun than the opposite edge. Over 1 year, it completes one orbit. Say the Earth starts on the short side closest to the Sun. This is summer (the hottest season for obvious reasons). 3 months later (one quarter of an orbit) it goes to one of the longer sides, and is slightly further away, entering autumn. Another 3 months and it is at the point where it is furthest away, in the middle of winter. Another 3 months and it's a bit closer and we're in spring. A further 3 months and we're back where we started!

Q9. How was the TE formed?
A. It is possible for two objects to orbit each other (google binary stars). This means that you have two objects moving around in an orbit, but there is nothing in the centre of the orbit (as their own masses provide the weight for the centripetal force of Gravity, which causes them to move in a circular-ish motion. Now, it is also possible to have 3 objects orbiting each other, or 4, or 5 etc. Now, the TE was formed when a large amount of objects orbited each other like this. As time went on, their gravity pulled in more space rocks and dust etc and the shape grew, eventually becoming a fully-formed torus.

Q10. Why do we not know of any other torus-shaped planets?
A. This is because the condition for a TE to form (several objects orbiting each other rather than a large mass in the middle) is quite unlikely to occur, and becomes much more unlikely each time more objects are required in the orbit. This makes torus-shaped planets very rare, and so far we are yet to discover another one.