when circumnavigating a line of longitude your course changes once, so why when circumnavigating latitude no c

Question

-hange ?

Answer 1

Simply answer:

Longitude is "long ways around the Earth"

Latitude is "Latter up the Earth"

If you are circumnavigating you are traveling along the Latitude or going around the Earth on a line. So if you move left or right on that line your change your latitude - typically referred to as North or South.

Your longitude incidentally is always changing as you circumnavigate around the Earth. But that changes even if you don't make a course change. :p
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Oh, dah, I get it, l had it backwards, sorry, like if you go over the poles of the earth. Okay. Dah.
You are traveling North to South or South to North. Once you reach that point (one of the poles) it changes