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Author Topic: 50 Plus Reasons The Earth Is Not Flat  (Read 335318 times)

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Re: 50 Plus Reasons The Earth Is Not Flat
« Reply #465 on: March 22, 2017, 01:29:00 AM »
Here's a video that addresses flat-earth videos point by point, but I don't really agree with some of its claims. Interesting, nonetheless: 



A very important concept in geodetic surveying is briefly touched on at minute 21 - 22: spherical excess. 
When you expand this triangle sufficiently, you can get three 90-degree angles.
Anyone with familiarity with basic geometry knows that a triangle cannot have 3 right angles.
But on a sphere, you can have a triangle with 3 right angles, with spherical excess.

There are several examples of three points on the globe that conform to this principle.

The same guy has a 4-video series where he gently describes the various aspects of this argument:



Re: 50 Plus Reasons The Earth Is Not Flat
« Reply #466 on: March 22, 2017, 07:14:14 AM »
ho ho.
Neil are you are aware that by now you have lost almost all credibility? You can't respond to our responses.

you know, I have this image you with an angry look on your face, frantically looking up all the anti-flat earth videos on youtube you can find.

You are totally uncritical in your analysis of these videos. That's why you don't respond to our responses to them.

About the first video, he states that there is speherical excess, but doesn't give us any practical examples or experience of engineers who have done it. It exists only in a textbook.

Here is an interview with an engineer of many years experience who says that they do not in practice measure curvature at all.



By the way, are you aware that engineers discount curvature for the first 20km squared? very convenient.


Another mistake he made in his video was talking about the dip every 69 miles. I'm sorry but that is beyond idiotic in his analysis. You can get the forumula for curvature with one simple google search.

8 inches per mile squared. If you don't square it, you end up with a straight line. Think about it.

I get the feeling in talking to neil that I am talking to one of these chat bots. No matter what you say, it will just come back to the default answer. Poor guy. He needs prayers.

I'll respond to the second video if I get time.



Re: 50 Plus Reasons The Earth Is Not Flat
« Reply #467 on: March 22, 2017, 10:45:29 AM »
In order to find the great circle route you need to consider the distance to the center of the earth from any given point on the route. This is often approximated by an average distance to the earth's center, and the results are close enough to allow for corrections near the end of the flight or course (air or water).
One thing you absolutely DO NOT have to do inorder to go from point A to pont B on the face of the earth is "consider the distance to the center of the earth."
How ridiculous.
There is no "center of the earth."
There is only hell below us.

Re: 50 Plus Reasons The Earth Is Not Flat
« Reply #468 on: March 22, 2017, 10:47:38 AM »

When you expand this triangle sufficiently, you can get three 90-degree angles.
Anyone with familiarity with basic geometry knows that a triangle cannot have 3 right angles.
But on a sphere, you can have a triangle with 3 right angles, with spherical excess.

This has to go down on record as one of the dumbest things ever written at Cathinfo.
:facepalm:

Re: 50 Plus Reasons The Earth Is Not Flat
« Reply #469 on: March 24, 2017, 11:16:07 PM »
This has to go down on record as one of the dumbest things ever written at Cathinfo.
:facepalm:
There are multiple sets of three locations on earth that fit this description. 
The simplest to describe is one at the north pole, two at the 90th longitude and equator, three at the prime meridian and equator. The angle between each adjacent location is 90 degrees in each case, yet together they form a triangle on the surface of the earth, since you can arrive at the next place by traveling in a straight line over the surface. You get from two to three by going due east. 
That can only happen on a globe, and it cannot happen on a "flat" earth.