https://www.metabunk.org/data/MetaMirrorCache/94869ff6a850d342c6c84966fa2c5783.jpg

https://www.businessinsider.com/how-greek-eratosthenes-calculated-earth-circumference-2016-6?r=US&IR=T

Guys

>Metabunk

Come to my lab

>shill website

people be using the railroad tracks with crepuscular rays like wtf

We will investigate the shape of the earth.

we must sing the soul song!

proof railroad tracks converge to a single point

actually

Eratosthenes had heard that in Syene, a city south of Alexandria, no vertical shadows were cast at noon on the summer solstice. The sun was directly overhead. He wondered if this were also true in Alexandria.

So, on June 21 he planted a stick directly in the ground and waited to see if a shadow would be cast at noon. It turns out there was one. And it measured about 7 degrees.

Now, if the sun's rays are coming in at the same angle at the same time of day, and a stick in Alexandria is casting a shadow while a stick in Syene is not, it must mean that the Earth's surface is curved. And Eratosthenes probably already knew that.

how high up is the sun exactly

Can someone give me more detail on their flat earth theory.

I.e. position of sun, existence of border, disc or square, what's beneath, what's above, light and gravity and a lot of stuff

Pretty sure NASA isn't the primary contribution to the theory of round earth

Also, the suns size, when it is dusk or dawn, the sun is huge, when it is midday the sun is tiny.

This is an obvious observation ^

Guys.

Questions.

Borders or no borders

Space or no space

What beneath what's above

Where are the moons and the stars

Where do they go when we do not see them

Does light travel in a straight line

Does gravity exist

@RidleyChozo I don't see your point

centrifugal force

Where would you measure the gravitational forces