William Wiegand discerned the influence of different fillers such as carbon black, heavy spar and chalk on the strength of rubber. Thanks to his research, tires now last five times as long as they did before.
Related Stories
Marsland Engineering
Marsland Engineering became a major supplier to such companies as Northern Electric and IBM
BlackBerry
One of Waterloo Region’s most recognizable icons of innovation in Waterloo Region stems from BlackBerry Ltd., formerly Research In Motion (RIM)