” Tu ne sauras jamais ce que les doigts pensent. ”
” You will never know what think the fingers.”
Extrait du poème Le Fou d’Elsa de Louis Aragon
IDEA : A Poster Clock : each hour, a part of the fingerprint drawn in thermochromic ink appears on the poster.
Early in the morning, the page is quite white. At midnight you can see the entire drawing.
Like an intuitive clock, the poster says what time is it. It is separated into 24 areas as the 24 hours in one day.
Thermochromic Ink tested with Lilypad
First we separated the poster into 8 areas representing 8 hours :
Poster separated in 24 areas for 24 hours. It appears entirely in one day.
Searching for the same color : a thermochromic purple and a regular identical purple
Preparation for printing
Construction method with the two different fingerprint screens and the carbon painting areas & the electronic circuit screen
Testing with conductive copper tape and conductive ink
Testing with carbon fabric for conductive areas
Testing with carbon painting for conductive areas
Testing with thermochromic ink : carbon and acrylic paints underneath
Painting the eight carbon ink areas