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Polar coordinates would have us on an r value from the core, and a kind of x/y from there. Since the r would be basically static (not true but basically), we'd be considered to be on just an x/y coordinates. Thus flat.

Polar coordinates would have us on an r value from the core, and a kind of x/y from there. Since the r would be basically static (not true but basically), we'd be considered to be on just an x/y coordinates. Thus flat.

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[–] • -1 pt

Ya that's the whole point. You warp the understanding of the world in polar coordinates. Where once converted you think of them "as cartesian". Now you effectively got an earth of just two dimensions. Hench, it's flat. In polar coordinates, yes the surface of the earth is essentially a 2 dimensional surface.

The thing that would kill the flat polar coordinate earth theory would be if the planet wasn't hollow. If the planet actually was hollow, it truly would be flat in polar coordinates.

[–] • 0 pt

You are warping the understanding of the world in something close to polar but not polar. Polar uses a radius (length) coordinate and two angular ones.

Regardless, you aren't getting that rotating about the R axis is the same as rotating about the vertical Cartesian axis on flat land, in that they both need 360 degrees to complete a revolution

[–] • -1 pt

You're thinking of polar coordinates as a way to define a 'cartesian world'. You're thinking in cartesian first and then polar is supposed to convert to it.

Flat is defined as two dimensional. If you think in polar first instead of cartesian first. You will see the earth's surface can be represented in two dimensions.