Soil lamp Written on September 6, 2008, by Ingeborg.
It’s a luminous idea to power a light by using mud. ‘To focus on the technique, the lamp is transparant and has the form of a simple householdlamp,’ says Design Academy graduate Marieke Staps. Although a splash of water a month is enough, the soil lamp is not the sustainable energy we’re waiting for. Earth batteries use copper and zink.