Above: Jefferson Han demonstrates his Perceptive Pixel technology.

On the night of the Super Tuesday presidential primaries, John King and Wolf Blitzer stood in front of a camera in a studio at CNN’s headquarters at the Time Warner Center and provided some live analysis of the night’s upcoming contests. Behind them was a device that looked like a widescreen television, showing a map of the United States.

The conversation eventually focused on California. While Mr. Blitzer gave a basic run down of the state, Mr. King turned and touched the screen with each of his forefingers. As he pulled his fingers slowly in opposite directions, the map of California expanded.

“The delegates for the Democrats, the way they proportion and decide who gets those delegates is going to be very important,” said Mr. Blitzer.  read more »