Earth Is A Sphere. Few Proofs For The Flat Earth Society With Members All Around The Globe ?

Earth is a sphere. Few proofs for the Flat Earth Society


View: https://youtu.be/d3GD9gXzUBk

 

FLAT EARTHERS PROVE EARTH IS A SPHERE

 

Flat Earth Debunked: proof that the Earth is a spheroid / a sphere / a globe / round

 

if you want to learn something google:

how to prove the earth is a sphere

 

a posting board generally begins with a thread
with an assortment of information, on a topic
NO WHERE does it say; i agree, NOR disagree with anything above this post

• your comments are welcome
• and, if you have 'real proof' of a 'flat world' please submit it
• seems you think you've done your homework, and, if so, please submit your 'real findings'

 

​

You can use simple mathematical-geometric arguments to 'define' the shape of the earth or the topological form of anything Susan!


Geometric Circles exist, as do physical disks as cylindrical cross sections using the 2-dimensionality of an area enclosed by a circle.
Projecting the 2-dimensional circle as a plane into 3 dimensions creates a 3-dimensional sphere embedded in a 3-dimension al topological space, but also as being embedded in a 4-dimensional space, also spherical in a local coordinate system with possible global coordinates defining spheres enclosed in spheres and spheres enclosed in cylinders.

If the encompassing 3-dimensional space is cyclindrical (flat earth notion) as a possible topology, then within 3-dimensional space this cylinder (or torus or other geometric topolgy) could then again become embedded as a cylinder (or flat earth geometry) within an encompassing sphere.

This inner space being in the same dimension as the outer space, say separated by the surface area of an earth either flat or spherical would then again be encompassed in a greater geometry topolgy in the same dimension.
It is only when the embedding occurs as a lower dimension say a volume within a higher dimension, that this 'Russian Doll' repetition can be violated.

A 4-dimensional sphere or 3-ball has a 3-dimensional surface area equal to the 3-dimensional volume of a Horn Torus, encompassed within a 3-dimensional sphere.

The volume of a 3-ball is V₄=½π²R⁴ with surface area dV₄/dR = 2π²R³ = 2πRxπR² as the volume of a basic Horn Torus in 3 dimensions (Pappus Theorem) and enclosed by a basic 3-dimensional sphere of twice the radius (2R) of a possible cyclinder (flat earth disk of radius R).

From pure geometric analysis then a 'flat earth' can always become encompassed by a spherical 'bigger' volume and limit for this embedding will be a 4-dimensional volume equal to the volume of a Horn Torus within an even bigger sphere.
This is shown in the diagram and the second diagram defines the curvature of the earth from first principles, using the Pythagorean theorem and a trigonometric analysis.

So whilst a cylindrical earth is geometrically possible in 3 space dimensions, such a flat earth would ALWAYS be embedded in a spherical 3D volumar around it, with this encompassment forming a higher dimensional boundary dividing the inner space from the outer space, just as the surface of the earth divides the inner earth from the outer earth.

​

 

View: https://youtu.be/65nosFGJ1lo

 

How We Figured Out That Earth Goes Around the Sun

 

• 
  SPACED OUT

Puzzled Flat-Earthers left raging

after Nasa astronaut posts photo from the ISS

• Sean Keach, Digital Technology and Science Editor

• 16:08, 15 Jan 2020
• Updated: 10:18, 16 Jan 2020

FLAT-EARTHERS were left shocked, confused and angry after a Nasa astronaut posted a photo of Earth from space.

The impressive but unusual image was posted by seasoned space hero Jessica Meir,
who captured our blue planet from the International Space Station.

2
This stunning image was taken from the ISSCredit: Jessica Meir / Nasa

US astronaut Meir is currently on board the ISS, and snapped the curvature of Earth through a space station window.
She posted the image to Twitter to show off her lofty view, but quickly drew the ire of conspiracy theorists.
Many of those replying were Flat-Earthers – people who believe that the Earth is flat, not spherical.
"Imagine lying to billions of people and pretending to be an astronaut. Your life must really suck," wrote one angry Twitter user.

2
Jessica Meir is a seasoned US astronaut with extensive trainingCredit: Twitter
Most of the Flat-Earthers replying accused Meir of capturing the image using a special type of curved lens.
"Why do you guys always use fish eye lenses," moaned one.
Another said: "Yes. That's fish eye lens. Make earth looks like round. Actually, the earth is Flat!"
And one added: "Nice try with the fish eye, but it's flat."

Some were simply in disbelief that you can photograph the entire Earth from near-Earth orbit.
"So from 400km above the earth you can view the whole round earth? Yeah very believable," an angry Twitter user wrote.
Flat Earth – the key facts
Here's what you need to know...

• The Flat Earth model is an outdated and disproven view that Earth is a flat plane or disk
• Flat Earth theories were widely believed throughout Ancient Greece, the Bronze Age and Iron Age, and even through to the 17th century in China
• The idea of a spherical Earth first appeared with Pyhtagoras in the 6th century BC, and Aristotle provided evidence for the theory in 330 BC
• Earth's spherical shape is now proven and has been widely documented by scientists around the world
• Internet conspiracy theories have led to a modern resurgence in Flat Earth belief
• Social media sites like YouTube, Facebook and Twitter have struggled to limit the reach of these disproven theories

Flat Earth theories have been widely discredited for centuries.
But the rise of the internet and social media has allowed conspiracy theories to flourish.

Tech firms are now trying to crack down on the spread of Flat Earth misinformation – but their efforts clearly haven't swayed these paranoid Twitter users.