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Board » General Discussion » Great circle-explanation please?

Posted by
Jepsom


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2010-05-08 18:16:12 - Great circle-explanation please?
Hi

I´m not the best it-guru and I don´t understand all this about the Great Circle. So, can someone please explain way this happens. If you steer 270 degree west and then turn back, vs. rate, east 90 degrees. Why don´t you come back to the point from where you started?
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Posted by
jakob


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2010-05-08 19:50:16 - Re: Great circle-explanation please?
The great circle is the shortest line between 2 points on the globe. (tip: play with a thread and 2 needles on an orange). This means that the course along a GC typically changes along the path. The courses in your examples are the courses to set at the turning points. Along the rest of the paths, the courses are different. Hence, your question is a little oddly put since you seem to refer to a loxodrome when you state that you steer a certain constant course. Tip 2: Zoom out a lot and play with the measuring tool and you will likely see what I mean.
...one of the guys behind the game...
Posted by
Jepsom


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2010-05-08 21:09:14 - Re: Great circle-explanation please?
I hope that you do not think my question was a critical one...
And My Q was not "little oddly" :)))
I am a single Coca-Cola Salesman and no academics. So thats why I ask for things that I do not understand. I understand that it is the most direct route between two points on the globe, but became confused when I measured as in the example. Now you have explained and I have done my homework so that I will be more toxic than in the future;))
If you wonder about the difference between Coke Zero and Coke light, I will be the first to tell you ...;))


Thank! :)
Posted by
76Trombones


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2010-05-09 01:19:39 - Re: Great circle-explanation please?
"Oddly little" the whole question is by being not able to open attachments in question.

It's fun though to put a face to Jepsom :)

Nice example of how the GC tool in SOL measures angles! Slightly unexpected, but no straight lines on this orange... Try it with CC.

We used to have a coke C2 that had 1/2 sugar but also artificial sweeteners... Maybe our resident guru can explain why they don't make it with 1/2 sugar but no compensatory chemicals for those of us who might like such a thing mixed with rum? ;)

--- Last Edited by 76Trombones at 2010-05-09 01:29:47 ---
Posted by
jakob


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2010-05-09 06:24:38 - Re: Great circle-explanation please?
No problem Jepsom. These questions are very good in several ways. They makes us reflect on how the user interface works, how clear the manual is etc... Also, if you have such a question I bet there are 100 others wondering the same thing :-)

My only Coke-question is: Can I get the recipe please?

/Jakob
...one of the guys behind the game...
Posted by
Jepsom


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2010-05-09 07:38:56 - Re: Great circle-explanation please?
Well...

First, 76: I will forward your question to the main office. While you wait for an answer, you may drink only Rome ... if you doubt the content ..;)

And Jakob: It´s all about money I think.. :)

Ps. It´s fun to put a face to 76trombone as well... I do understand you wife... ;) Ds.

/Jesper

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