The Green Pretaster

Citizen Science, 2013

A living plant that measures and expresses water quality using electric conductivity sensors and muscle wires.

Areas: Concept & Execution, Hardware and Firmware Development

Tech: Nitinol Muscle Wires, Electric Conductivity Sensors, Laser Cutting, Arduino

The Green Pretaster tastes your water before you unwillingly drink it. It demonstrates, with delicate but expressive movements, whether the water it is given is pure enough to be drunk or not.

The piece uses a living peppermint plant, Nitinol muscle wires and levers for its movement, an electric conductivity sensor for the testing of the water’s purity and is wrapped in a laser-cut acrylic enclosure.