Bitcoin price synchronized between exchanges how the different exchanges manage to have the price of Bitcoin synchronized (or at least very close)?
The exchanges don't need to synchronize.  It's just traders keeping the prices close.  If the price is $6500 on one exchange and $6700 on another for BTC.  Traders will sell on the $6700 exchange and buy on $6500 exchange until they are close.  They now own more BTC then before without spending any money