Is The Earth A Flat Round Disc or Is It a Round Spherical Globe?

[verpies]

Below is an illustration of an experiment that would determine whether Earth is flat or curved beyond all reasonable doubt, without interference from effects such as  atmospheric ducting.

Description of the Experiment:
Two parallel pipes (one above the other and touching).
One pipe is half-filled with water and serves as a level for the other pipe, which rides on top of it (touching) and is "filled" with vacuum.  Periodic adjustable supports allow for exact leveling of the two pipe combo, on any non-hilly terrain.

The laser beam inside the vacuum pipe is compared to the water level in the water pipe below.


A 400m long pipe is enough. (or ¼ mile)


Formula for the difference in the length of the orange and violet ruler on a curved Earth:
Δh = ( r / cos( arc/r ) ) - r

_{where:
Δh: the drop-off of the curved water surface compared to a straight laser line.
r: mean radius of the Earth,
arc: the length of the arc (distance measured between two points along the water's/Earth's surface)}


LEGEND:
- All vertical rulers are referenced to the water level in the half-filled pipe.
   - The orange rulers are of equal length.
   - The violet ruler measures the result of the experiment.  On curved Earth it will be longer than the orange rulers.

- The green triangles are the adjustable supports for the pipes.

[Farmhand]

Do any flat Earth proponents have an explanation of how the tides are produced on the flat Earth either artificially or naturally ?

..

[MileHigh]

Verpies, that's a great experiment to do because it is totally doable by a bunch of Flat-Earthers at their next pizza pie and pancake convention.  The material costs are not that great at all, and it would not be too hard to cordon off a 400 m stretch in a big hotel parking lot.  Talk about spoiling the party.

It reminds me of this little factoid that dates back to the 1930s:

The top of the Golden Gate Bridge is almost two inches wider at the top than the base because of the curvature of the Earth!

http://datagenetics.com/blog/june32012/index.html

Here we are 80 years later and 20+ years into the Information Age and some people have regressed all the way back to the 16th century.  The ironic thing is for sure there are many new converts to the "cause" because they accessed the "information" on their Buck Rogers magic data terminals.

MileHigh

[SeaMonkey]

Do any flat Earth proponents have an explanation of how the tides are produced on the flat Earth either artificially or naturally ?
..

Aye, very good question!  Or the eclipses too.

Falling victim to the Flat Earth PsyOp seems to
be the present fad.

[Here2njoy]

I like the flat earth current theme happening for one reason and one reason only... It is getting people to "Question Everything" and come to their own truth instead of what has been programmed in to us.  Because all "theory" is not cast in stone, it changes all the time.

https://www.youtube.com/watch?v=zVSe8JZ_eag

An open letter to Neal Degrasse Tyson:
https://www.youtube.com/watch?v=zuBVCmC0ACM