Major math error that is causing the existence of "Flat Earthers." I have proof;

Below is the chart used by Flat Earthers to prove the Earth is flat.

They take the fact the Earth averages a curve of 8 inches ever mile and come up with this formula;



They say that if the Earth was curved, that an object 120 miles away should be 9600 feet lower than you. Notice the stupidity of their math;

First off, at 120 miles, you need to multiply that by 8 inches; which gives you 960 inches.

960 inches divided by 12 = 80 feet, not 9600 feet.

Using the stupid math they do on the chart, they show that at 120 feet a flat earth would be 9600 feet lower LOL

Instead of doing (120 x / 12, they are doing (120 x 120 x /12.

Holy **** are flat earthers stupid.

 

They have significantly larger problems than poor math skills.

 

I actually have egg on my face. It turns out that chart is accurate. My mistake was switching miles for inches.

If the curvature drop between two people 100 miles away is only 1.25 miles, that makes sense, still.

 

No problem.

I wonder what they think Google Earth is doing when you zoom out, rotate the globe and then zoom in.

I wonder what their reason is for the southern hemisphere having different constellations.

How could time zones work on a flat earth? After all, on a flat earth the sun would set at the same time everywhere.

Gravity pulls toward the center of mass. On a flat earth, the center of mass would NOT be straight "down" - it would pull you at an angle downward, but at an angle toward the center of the flat earth.

Why would the earth be flat, but all other planets NOT be flat?

etc., etc., etc.

 

Y = R (1 - Cos (S/R))

Y = difference in height
R = Radius of Earth
S = distance between observers while following the curve of the earth

 

Technically it is more complicated because the polar radius is different than the equatorial radius

The radius of Earth at the equator is 3,963 miles (6,378 kilometers), according to NASA's Goddard Space Flight Center. However, Earth is not quite a sphere. The planet's rotation causes it to bulge at the equator. Earth's polar radius is 3,949 miles (6,356 km) — a difference of 14 miles (22 km).Sep 15, 2017
https://www.space.com/17638-how-big-is-earth.html

So for an exact answer, you would have to consider the latitudes of the two observers. But 14 miles / 3963 miles only introduces a maximum 0.35% error

 

So I suppose they doubt the moon and other celestial bodies are round ?
Or is only the Earth flat ?

This only proves the gullibility of some people.