Rolex Time Sand is an installation by Michael Marcovici. One bag is filled with 30 kgs of sand, which equals 30 days flowing in a standard hourglass. On the 18 palets, there are 972 bags with a total weight of 29.160 kg. They last for 81 years- our generous estimation of an average lifestime. The image in the middle pictures the artist’s lifetime already consumed: 39 years.
found at Nerdcore