Distribuerte reguleringssystemer Distribuerte reguleringssystemer er etter hvert blitt vanlige i keep industribedrifter. Ctesibius's clepsydra (3rd century BC) It was a preoccupation of the Greeks and Arabs (inside the period among about three hundred BC and about 1200 Advert) to maintain correct keep track of of your time. In Ptolemaic Egypt, about 270 BC, http://www.vict.nl/