The Flat Earth Society

Flat Earth Discussion Boards => Flat Earth Theory => Topic started by: BabySlamma on January 17, 2018, 08:29:42 PM

Title: Flawed proof on FE wiki
Post by: BabySlamma on January 17, 2018, 08:29:42 PM

(https://i.imgur.com/TdHIO95.jpg)
Circled in red, is claimed to be the density formula? However, the actual formal for density is D=m/v. The difference is subtle, but the impacts are not. The proof is attempting the find the density of an area, when in fact density requires a VOLUME.

Title: Re: Flawed proof on FE wiki
Post by: Macarios on January 17, 2018, 10:44:06 PM

Marked part has no real error in it.
It simply represents mass as function of area, because thickness and density don't change with location.

For "more acceptable" explanation see "An Infinite Wall" here: http://www.mathpages.com/home/kmath530/kmath530.htm (http://www.mathpages.com/home/kmath530/kmath530.htm)

You will find that attraction force (weight) is:

(http://www.mathpages.com/home/kmath530/kmath530_files/image004.gif)

and we already know that acceleration is:

g = F / m

Note that on infinite plane with finite gravity F and g don't change with altitude.
On Earth in reality they change not only with altitude, but with latitude as well.
.