Co-designer of innovative pump remembered
Alan Plumtree, an inventor of a pump that provides clean drinking water to developing countries, died on November 5.
Plumtree, a Waterloo mechanical engineering professor, and Alfred Rudin, a Waterloo chemistry professor, created the hand-operated
pump in the late 1970s after being approached by the International Development Research Centre.

screen coronavirus cases from chest X-ray images.
economy.