'citrus clock' - anna gram

the 'citrus clock' runs on the energy of a lemon which has the ability to power the time-teller for a week or longer. the technology behind the clock is similar to those principles used by mr. volta back in 1799 when inventing the battery - using an electrolysis of zinc and copper (the plug located under the lemon) in a salted or acid liquid (lemon), to create electricity. the project is meant to quickly remind us of the various ways in which nature, despite the continuous transformations we subject it to, is still our most valuable resource and main source of energy.