Simon Elvis work is about visualizing invisible things. For example above you can see a haptic map of London most silent places.

SILENT LONDON

March 2005 - 735×500mm - Blind embossed etching - Edition of 10
Using information the government has collected on noise levels within London, a map has
been plotted of the capitals most silent spaces. The map intends to reveal a hidden
landscape of quiet spaces and shows an alternate side of the city that would normally
go unnoticed.

VIA: http://www.simonelvins.com/silent_london.html

SEEN AT: http://www.generatorx.no/