[Just thinking]

The OP is positing the old idea that "down" is an absolute direction, rather than being defined by the direction gravity acts.

I'm in Australia and I'm pretty sure I'm not hanging upside down. The earth must be flat after all.

[Colin2B]

I'm in Australia and I'm pretty sure I'm not hanging upside down. The earth must be flat after all.

Not sure I want to know how you are hanging  but, yes, locally the earth is flat (very locally) 

[Just thinking]

but, yes, locally the earth is flat (very locally)

Yes, my snooker table is local and flat.

[alancalverd]

Norfolk is flat. Nothing else matters. Ask any native.

[Just thinking]

Norfolk is flat. Nothing else matters. Ask any native.

When a plane is at 38 thousand feet one can see for about 400 kilometers so if we had a telescope and watched the plane going into the distance we would see it meat the horizon when the plane was 400 kilometers out. A simple experiment for the flat people.

[alancalverd]

Yew won't want to go to 38000 feet in Norfolk, bor. Yew can see all that matters from the top of a church.

[Just thinking]

Yew won't want to go to 38000 feet in Norfolk, bor. Yew can see all that matters from the top of a church.

If the church is 150 feet tall and you are on the top of it you can see for a distance of about 25 kilometers in all directions. So with a good pair of binoculars, we can do some whale watching.

[Bored chemist]

If I wanted to watch whales in Norfolk, I'd probably got to the coast rather than climb a steeple- but whatever floats your boat.

[alancalverd]

Yew can't see Wales from Norfolk, bor. There's 'ills in the way. Any road, come low tide, cetaceans be left on the beach.

[Just thinking]

Ha hoo wa waat his da ha hoho yes.