Eight installations built between 2001 and 2007. Each a distinct answer to the same question.

2001

OP_ERA

2003

OP_ERA: A Journey

2004

OP_ERA: Hyperviews

2004

OP_ERA: Haptic Interface

2004

OP_ERA: Haptic Wall

2005

OP_ERA: Sonic Dimension

2006

OP_ERA: Sonic Interface

2006-2007

OP_ERA: Haptics for the 5th Dimension