[Mora]

I'd like to propose a relatively simple experiment that could be done to prove the Earth is indeed round. Enter the Coriolis Force, close relative to the centrifugal force, apparently a real force (if you believe in that sort of thing) that snipers have to account for. It causes a small but certainly measurable projectile deflection that varies depending on your latitude and the direction you're facing. Assuming a round Earth model for a moment, the force disappears entirely at the equator.

In the case of a flat and rotating Earth, the Coriolis Force at the equator should not be zero, so in order to prove (or disprove) a round Earth model, all one needs to do is find the Coriolis Force at the equator.

In the case of a flat and non-rotating Earth, the Coriolis Force shouldn't even exist (since it arises as a result of rotation), and so in order to prove a round Earth model, all one needs to do is observe the Coriolis Force at any point not along the equator.

This is easier said than done, since you have to measure the effects of a force that's 1000 times weaker than gravity, but if it's that or shoot yourself into space and take a picture, this method is clearly more feasible.

[3DGeek]

I'd like to propose a relatively simple experiment that could be done to prove the Earth is indeed round. Enter the Coriolis Force, close relative to the centrifugal force, apparently a real force (if you believe in that sort of thing) that snipers have to account for. It causes a small but certainly measurable projectile deflection that varies depending on your latitude and the direction you're facing. Assuming a round Earth model for a moment, the force disappears entirely at the equator.

In the case of a flat and rotating Earth, the Coriolis Force at the equator should not be zero, so in order to prove (or disprove) a round Earth model, all one needs to do is find the Coriolis Force at the equator.

In the case of a flat and non-rotating Earth, the Coriolis Force shouldn't even exist (since it arises as a result of rotation), and so in order to prove a round Earth model, all one needs to do is observe the Coriolis Force at any point not along the equator.

This is easier said than done, since you have to measure the effects of a force that's 1000 times weaker than gravity, but if it's that or shoot yourself into space and take a picture, this method is clearly more feasible.

You don't have to reproduce a coriolis force and measure it - you can simply observe the force in nature.

Every single hurricane spins one way - and every single typhoon spins the other way.   Hurricanes ONLY happen North of the Equator and Typhoons only happen south of the equator.

Both are spun up by Coriolis forces.

Neither hurricane nor typhoon can survive crossing the equator.

In a Flat Earth, there is no reason why any of these things should be true...yet every year we watch the weather reports and see the same exact patterns.