By Lyes Hammadouche and Ianis Lallemand
An interactive installation, 2015

Computer development of the interactive system: Colin Bouvry
Computer development of the motorisation: Didier Bouchon
Exhibition furniture: Charles-Henry Fertin
Production monitoring (EnsAD): Emmanuelle Barbey

Partners: EnsAD / EnsadLab / ENS / SACRe / PSL / Forum Vies Mobiles

40 x 40 x 800 cm, aluminium, PLA plastic, motors, proximity laser sensor.
Eight hourglass modules are kept in a horizontal position, preventing sand from running off. When a spectator approaches an hourglass close enough, it rotates up or down, allowing the sand to flow according to the spectator’s movements. The angle of the hourglass depends on the distance of the spectator and the quality of his movement. When there is no movement, a random choreography is performed.