Systems Diagram of a City

Submitted by pmd on Thu, 11/01/2012 - 13:13

This is an interesting "Systems Diagram of a City", found at:

And the image appears on the wikipedia page for Emergy, and is labelled "Energy system diagram of a city in its support region"

This diagrams the major energy  flows in and out of a city.

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Process of an Online Transaction

Submitted by marcela1991 on Thu, 08/16/2012 - 11:29

This image displays the process of an online transaction. The image shows the flow of how a customer can purchase a product online. After, the transaction is completed when the money is withdrawed from the customer's bank into the merchant's bank. The flow chart displays the facile manner in which an electonic purchase can be made. 

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