[Gian via sundial]

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The pattern cannot be unique, it must repeat twice in a year: when the sun has the same declination value. Ciao. Gian ________________________________ Il 21/07/2015 20:33, Dan Uza ha scritto: Hello, Sorry if this is old news to some of you but I've just read about this wonderful idea: http://www.wired.com/2013/10/this-bench-stores-past-memories-in-its-shadows/ What do you think, can such a shadow recognition app actually work? And is the projected pattern really unique for any given day of the year?  Dan Uza Romania Sent from Libero Mobile

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