Elementary clock

From Watch Wiki: The Best Watches and Watch Brands
Jump to: navigation, search

Under the term elementary clock all timepieces can be summarized that work by using one of the traditional four "basic elements". Include hourglasses, water clocks, fire clocks and sundials to this group. In another sense, however, you can include all natural processes into this concept, which, through its cyclically recurring draining, allow an orientation within the category of time, eg the so-called bird watch and also the astronomical processes.