Graphical Convolution !?!!

I learnt something new the other day. While preparing a speech, in my capacity as the President of the Student Branch, for the inaugural function of our IEEE student branch I came across an interesting history of the IEEE logo.

It seems to be some sort of a convoluted repersentation of the wheatstone bridge and the right hand rule. After time convolution and frequency convolution, what next? Graphical convolution????