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Check this out<br />
<br />
<a href="http://en.wikipedia.org/wiki/Geographic_coordinate_system" rel="ugc">http://en.wikipedia.org/wiki/Geographic_coordinate_system</a>
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Check this out

http://en.wikipedia.org/wiki/Geographic_coordinate_system [http://en.wikipedia.org/wiki/Geographic_coordinate_system]

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Thanks.<br />
<br />
That answers the first part - do you know about the second part? &nbsp;(Or did I miss something in the article).
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Thanks.

That answers the first part - do you know about the second part?  (Or did I miss something in the article).

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<div class="content wysiwyg-content">
When was Greenwich set as to 0 degree in terms of longitude ?<br />
When was the idea of Lattitude and Longitude introduced / defined ?
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When was Greenwich set as to 0 degree in terms of longitude ?
When was the idea of Lattitude and Longitude introduced / defined ?

Lattitude and Longitude

The Math / Science topic primarily includes discussions of mathematics, physics, statistics and economic analysis, but also biology, chemistry and other sciences.