Due east is a right angle from north-south.
But the 'line' of latitude is not a great circle (except the equator, which is).

So if you keep walking due east, you are really always curving towards the pole.
Suppose you lived 1 meter from the North Pole; then you would walk along a circle of 2 meters in diameter. But you would still always walk due east, and the circle always is at right angeles to north-south.

Rudolf

Op 15 september 2015 om 16:10 schreef Brent <[email protected]>:

I'm confused maybe.

I live in the northern hemishpere and anticipating the equinox on the 23rd.

Supposedly the sun will rise due east.

So if due east is a right angle from north south and I traveled due east I would not follow my line of latitude.
I would get further and further south of my latitude the further I traveled.

So either the lines of latitude are not east west lines or due east is not a straight line but curved.
I suspect lines of latitude are not east west lines?
They would work fine if the earth was not tilted, but it is.

Wouldn't it make sense to coordinate the globe so lines of latitude (or call them something else) are straight and a right angle
from north south?

brent



 

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