141

Flat Earth Theory / Re: How does gravity work?

« on: April 07, 2018, 09:03:41 AM »

Well gravity works because it pulls down underneath the whole earth equally. In a round earth it pulls from the centre, but on flat earth it is a force active all across the underside of the earth.

So how do you explain the Eötvös effect?

142

Flat Earth Theory / Re: Supersonic Airplanes?

« on: April 01, 2018, 08:19:21 AM »

No? Noone?

143

Flat Earth Theory / Re: Universal Acceleration Flaws

« on: March 27, 2018, 03:19:06 PM »

Firstly, the celestial gravitational (CG for short) field cannot be uniform, there must be areas of lower and higher gravitational pull. Otherwise, objects on the surface of the Earth would be pulled evenly and there would be no differences in gravitational acceleration.

Secondly, the CG must increase to the east and decrease to the west in order to cause the observed Eötvös effect. Furthermore, this must be true for every point and any points on the Earth since the Eötvös effect is universal.

However, it is impossible for the strength of the CG to constantly increase in one direction and decrease in the other. Imagine going around an empty clock dial "eastbound" and writing numbers representing the strength of the CG on it. After completing a full 360° rev you would find out that the number to the west is actually greater than the number to the east when it should be lesser (see paragraph two).

Moreover, the total gravitational pull of the "west half" would be greater than the total gravitational pull of the "east half". That would result in an eventual westbound pull which once again contradicts the whole scenario.

In conclusion, the CG cannot be the cause of the Eötvös effect.

144

Flat Earth Theory / Re: Universal Acceleration Flaws

« on: March 27, 2018, 05:27:55 AM »

I've read the faq and wiki pages, they don't say anything about differences in gravitational accelerations.

I've also read forum threads and, at the very least, I've found no FE explanation for the Eötvös effect.

That's why I started this thread.

Sorry, but that just shows you haven't read the wiki thoroughly enough. https://wiki.tfes.org/Celestial_Gravitation It's come up in a few discussions. I don't know why he didn't just point you here, but this is the FE 'catch all' for gravimetric anomalies, including the tides. At least for some FE believers, relating most closely to those who believe in UA.

The many incosistencies of the celestial gravitation aside, it cannot explain the Eötvös effect.

145

Flat Earth Theory / Re: Universal Acceleration Flaws

« on: March 26, 2018, 07:52:28 PM »

I've read the faq and wiki pages, they don't say anything about differences in gravitational accelerations.

I've also read forum threads and, at the very least, I've found no FE explanation for the Eötvös effect.

That's why I started this thread.

146

Flat Earth Theory / Universal Acceleration Flaws

« on: March 26, 2018, 08:28:56 AM »

FE UA cannot explain different gravitational accelerations. Even if individual parts of Earth would accelerate differently, the gravitational acceleration also depends on your altitude, whether you are moving west or east (the Eötvös effect), and so on.

Furthermore, even a slight difference of acceleratooinionion would soon tear the Earth apart. For you to get an idea: in not even 15 minutes of accelerating from zero velocity the elevation difference between Mount Huascaran and the Arctic Ocean, the areas with the most extreme gravitational accelerations, would be larger than between the bottom of the Mariana Trench and Mt Everest on the stationary Earth and in 29 hours it would be 384 000 km, the same as the mean distance between the Earth and the Moon in the heliocentric model.

How does the FE society explain these things?

147

Flat Earth Theory / Supersonic Airplanes?

« on: March 21, 2018, 07:58:51 AM »

Flights from Melbourne to Auckland take 3 hours and 35 minutes. In the FE model, airplanes would have to fly faster than the speed of sound to accomplish that. However, commercial airplanes, such as Boeing 737 and Airbus A320, cannot exceed the speed of sound. Could any FE believer explain me this situation?

148

Flat Earth Theory / Re: Circumference of Certain Circles of Latitude

« on: March 21, 2018, 07:12:55 AM »

You can take my numbers in the "radii" thread and multiply by 2 pi.

In the mono-pole north-centric flat earth model your numbers are close to correct. In the round earth model, they are incorrect, glaringly so in the southern hemisphere.

Thank you.

149

Flat Earth Theory / Re: Radii of Certain Circles of Latitude

« on: March 21, 2018, 06:50:43 AM »

I think Stagiri wants the radius of the circle, not the radius of the earth.

In the mono-polar north-centric flat earth model, the radius of the circle is just 60 nautical miles (approximately 69 statute or "normal" miles) times the the difference in degrees between 90 degrees north and the latitude in question. So, here are some approximate radii:
Arctic circle: 1617 miles
tropic of cancer: 4590 miles
equator: 6210 miles
tropic of capricorn: 7830 miles
antarctic circle: 10800 miles.

In the round earth theory, the distance from the north pole as measured along the surface of the earth is the same as the radius from flat earth model. But, because of the curve, the radius of the actual planar circle is smaller.

The radius of the circle (ignoring the oblateness of the earth) is the radius of the earth times the cosine of the latitude. Here are the same latitude circle radii:
Arctic circle: 1578 miles
tropic of cancer: 3630 miles
equator: 3959 miles
tropic of capricorn: 3630 miles
antarctic circle: 1578 miles.

Thank you very much, this is exactly what I was looking for.
By the way, is it FE approved?

150

Flat Earth Theory / Radii of Certain Circles of Latitude

« on: March 20, 2018, 06:58:32 PM »

Is there any formula for calculating the radius of a certain circle of latitude?
I've read that each latitude degree is 69.5 miles further from the North Pole. Is it correct?

151

Flat Earth Theory / Circumference of Certain Circles of Latitude

« on: March 20, 2018, 09:09:57 AM »

Is there any formula for calculating the circumference of a FE circle of latitude? Thank you.

EDIT: I've read that each latitude degree increases the circumference by about 437 miles. Is it correct?