The world’s first liquid metal and glass circuit board - from Itera - YouTube Watch On When a new tech startup promises something akin to a revolution, it's hard not to be a little cynical these days. But even if the claims aren't fully realised, it will still be darn cool watching a complex circuit come to life, with rivers of liquid metal flowing between the components. That's essentially what Itera is promising, and its website is replete with glossy animations to demonstrate it all. Our chums over at Tom's Hardware have a short clip of the process involved, and it has to be said that this looks decidedly less cool, but still very interesting nevertheless. Backed by $12 million worth of investments, what Itera offers is basically this: You upload a full printed circuit board layout design to its servers, and rather than waiting for the board to be manufactured and returned, Itera will 'construct' it within a matter of minutes.…