public void Awake()
        {
            StockExchange.StartExchange();
            Timer sTimer = new Timer();

            sTimer.Elapsed += new ElapsedEventHandler((object source, ElapsedEventArgs e) => { IntervalUpdate(); StockExchange.calculateExchange(); });
            sTimer.Interval = 1000; // 1000 ms is one second
            sTimer.Start();
        }