Inside the Race to Build the World’s Fastest Bitcoin Miner

butterfly-315x315There’s more than one way to make money from the Bitcoin craze, which has seen the value of the digital currency increase more than six-fold over the past few months. You can do it the old-fashioned way: buying low and selling high. But for the sophisticated digital-currency investor, there’s a whole other world of Bitcoin speculation: the Bitcoin mining rig. Read More