Pigeon_Droppings2
Member
- Messages
- 6,707
- Location
- london
You could draw a level line around the earth and it would be circular 


I thought the earth was flatYour not standing on a tall enough ladder![]()
water cant go round cornersBe a b I t c h if your putting up shelvesYou could draw a level line around the earth and it would be circular![]()
I’d like it but need to understand it first.
Second time today I didn’t get it
I thought the earth was flatwater cant go round corners
Be a b I t c h if your putting up shelves

Accurate, a Curate.
You could draw a level line around the earth and it would be circular![]()

Would that be flat
Would that be flat![]()
It would in 1 plane.
Which reminds me....how many sides does a circle have?

How many forum members does it take to calibrate a level
Some of you lot would never manage to sort a lightbulb![]()
It would in 1 plane.
Which reminds me....how many sides does a circle have?
I remember having an argument with my art teacher at school when he announced to the class that a line is the only one dimensional shape. He claimed a line only had a 'size' in one dimension. I pointed out that my pencil said it was half a mill wide, and it kind of spiralled from there.
A line connects two points - but not always by the shortest route. A circle describes a disk, and hence has a plane. (But it still has an inside and outside when it's a circle; but not when it's a disk)
Meantime, we need to be careful not to jump between dimensions willy nilly or ignore the specific meaning of geometric terms.That was exactly my argument. Essentially, everything has to be three dimensional. Even if the pencil left a single atom of 'lead', it would still have 3 dimensions. Any more in depth than that and we are into quantum physics, which is a bit above an art teachers pay grade.A pencil line has a width of course, it also has to have a thickness, else it wouldn't be there. So dimension wise, it is no different to a piece of 4x 2 wood.
I would enjoy a discussion on the difference between "non-Euclidean" and "not Euclidean" but I wonder if that's of interest to anyone else.
