Reblogged from ‘I Love Charts’ blog, an absolute cutie:
I used to hang out with this guy who I thought was really sweet. We always hung out together because we were working on a group project that involved sankey diagrams, so before I had to delete the software, I made this diagram of all our shenanigans which, as you can see, involved us making acting like we were 10. I guess he lost interest so I never had the opportunity to send it to him, but how can I put such a well executed diagram to waste? You did mention once that you don’t get enough Sankey Diagrams
I do acknowledge that the term ‘Sankey diagram’ is not as common as a ‘pie chart’, and that many people don’t know it, even if they have a rough idea of this type of diagram. One might just call a Sankey diagram a ‘mass flow diagrams’ or ‘flow chart’, or ‘energy efficiency chart’. Or a ‘heat loss diagram’, as I have seen it once.
So, then: what is Sankey?
In times where “to google” is synonymously used for “to search”, a visit to Google will give you a first idea. I also recommend a query at Googlism, a site that has some very subtle answers to the above question (I very much like “Sankey is 7 or 7” and “Sankey is aboard” 😉 )
But seriously: Sankey is originally both a name of a locality in England, as well as a family name. Famous Sankey’s include Ira D. Sankey, a gospel singer and composer (1840-1908) and magician Jay Sankey. And of course the lesser known Captain H.R. Sankey, the first to publish an energy efficiency chart, and the reason why we call Sankey diagrams Sankey diagrams. I will try to aggregate some information on this personality, to honor his invention.