You know how when you put a ballpoint pen on a piece of paper and the ink is absorbed and slowly spreads out across the paper. Oscar Diaz uses the same concept here. The ink is absorbed slowly, and the numbers in the calendar are “printed” daily. One a day, they are filled with ink until the end of the month. A self-updating calendar—sweet. The ink colors are based on a spectrum, which relate to a “color temperature scale”, each month having a color related to our perception of the whether on that month. The colors range from dark blue in December to, three shades of green in spring or oranges, red in the summer. The calendar is being exhibited now as part of “Sueños de un Grifo”, an exhibition about water and design at the Circulo de Bellas Artes de Madrid. The show started on 17 July and will go until 11 October 2009.