Posted by: Bret Hartman


TEDGlobal 2012 – June 25 – 29, 2012, Edinburgh, Scotland. Photo: James Duncan Davidson

Comments (1)

  • Peter Hurrell commented on Sep 6 2012

    This sounds like a very interesting idea and we have a programme for it that could use a number of these in our pojects.
    The simplicity of the idea is its added advantage.