Pete, tried to reply to your last post, but the thread has been locked.

As usual you are confusing level and straight, they are two different things.
Straight is the line that follows the shortest path between two points on a flat surface.
Level is a line equidistant to the centre of gravity.

So on a spherical world, flying level maintains altitude, flying straight will increase altitude if the plane started off flying level..

On a disk World, flying straight and parallel maintains altitude but flying level decreases it.

A disk world with a flat plain, will have a low point at it's centre and rise uphill towards the perimeter, so unless it's spinning fast enough to maintain the disc shape, it will eventually collapse into a ball, under the effects of weather and gravity.

I once believed NASA and their ball earth theory

I once believed NASA could take us up there

I once believed the earth was spinning and moving at an incomprehensible speed

I once believed water could bend in a calm state - producing a ball shaped earth

I once believed a plane could fly from Perth to Sydney travelling level but still magically follow the 500 miles of curvature over the 2000 mile odd distance

I once believed ships dipping over the horizon were actually dropping below the curvature of the earth

Japie - Nov 2016


But I changed my views as a result of hard thinking

Japie - Nov 2017



I once believed in Jenner; I once believed in Pasteur. I believed in vaccination. I believed in vivisection. But I changed my views as the result of hard thinking - Dr Hadwen MD