Sign into an existing account

Here's some math on how to work out the required observation height to observe a given distance on a spherical surface or the distance to the horizon from a given observation height.

First, let's define a right triangle. r^2 + d^2 = (h + r)^2 where r is the radius of the Earth and d is the distance in a straight line from ground level extending tangentially to the surface of the earth (or what a flat-tard may call level from that perspective). h is the height above the ground that connects to the d line, the height that we're observing from in this case. Visually, this is what it looks like:

https://files.catbox.moe/lrri6o.png

Let's say we have our observation height (h) and of course the radius of the earth (r), and we want to find d, the distance to the horizon. When we re-arrange the equation, we come up with this:

d = sqrt((radius of the earth in meters + 10000 meters)^2 - (radius of the earth in meters)^2) where the radius of the earth is (averaged out to) 6.371009×10^6 meters. That places the horizon at 357,100 meters at an observation height of 10,000 meters.

357,100 meters or 221.89 miles

Earth isn't a perfect sphere. So, accuracy will vary.

A lot of flat earth niggers like to claim that globe earth people think that the horizon drops by 8 inches per mile squared, math that I would expect from niggers if they could do anything resembling math. The observation deck would be have to be 881,260.88 inches or 22,384 meters high in order to be just at the horizon. It's 10,000 meters in reality.

For a visual representation, the nigger math would create a retarded parabola. Spheres don't look like this retarded parabola when viewed from the side.

Here's the retarded parabola for reference: https://files.catbox.moe/dqicp5.jpg

This isn't an invite to debate flat earthers, as that's part of the psyop's goal, to waste your time and energy and to cause a brain drain from targeted forums by chasing away the people that can't stand such stupidity. They're retarded bioweapons designed to be irritating and to disrupt information networks. I can't stop any of them from making a fool of themselves in the comments though.