TWO FLEXIBLE RESERVOIRS WITH A CAPILLARY ATTACHED AT EACH END. IN ONE, A COLORED AQUEOUS LIQUID. IN THE OTHER, A VISCOUS TRANSPARENT LIQUID. KEEPING THEM APART IS THE REPULSION FORCE OF THE MOLECULES IN EACH FLUID. AT 6 O'CLOCK, THE TWO BELLOWS, MADE FROM AN INCREDIBLY STRONG AND SUPPLE ELECTRO-DEPOSITED ALLOY, ARE MOVED BY A PISTON. THE HOURS ARE INDICATED BY THE COLORED FLUORESCENT AQUEOUS LIQUID RELEASED FROM A FLEXIBLE RESERVOIR COMPRESSED BY A PISTON. THE FIRST COLOURED LIQUID TRAVELS THROUGH THE CAPILLARY PUSHING THE TRANSPARENT VISCOUS ONE BACK INTO ITS OWN RESERVOIR AND THEN RETURNING TO ITS ORIGINAL POSITION AT 6:00 IN WHAT IS REFERRED TO AS A RETROGRADE MANNER.