[Mark L. Snyde, PhD]

Another argument that can be made for a flat Earth is to observe that our weight does not decrease rapidly as we move up, such as in an airplane or on a mountain.

Now, a physicist is going to tell you that Newton's universal law of gravity states that the gravitational force between two objects varies inversely as the square of the distance between them, obeying the so-called inverse square law of radiation.

Anyone who knows a bit about differential calculus can attest to the fact that such a relation decreases very rapidly, in fact this rate of change is an inverse cubic relationship via the power rule for differentiation.

Hence, if the Earth were round, our weight would decrease very rapidly as we gain altitude. But, if you take your trusty bathroom scale with you on an airplane you will find your weight is the same as it was on the ground, and therefore we conclude that the force of gravity is constant.

Using a bit of integral calculus, it is easy to show that the only geometry that gives rise to a constant gravitational field is a flat one. It's very elementary.

Therefore, we are led to conclude that the Earth is flat.

Now, don't get me wrong Brothers and Sisters in Christ, we clearly don't need this at all because the Bible plainly tells us the Earth is flat. I post this only for those who choose not to take Our Lord at His Word, but who will gladly blindly follow science. And so I use a bit of science to confirm what God has already told us in order to win these abominable heathens over to The Lord.