A version of this story appears in the September 2020 issue of National Geographic magazine. Philadelphia detected its first case of a deadly, fast-spreading strain of influenza on September 17, 1918.

Green Transformational Leadership on Green Creativity: A Quantitative Study Within the Ghanaian Manufacturing Industry ...

Water Distribution, Hydraulic Modeling, EPANET, Optimization, Extended Period Simulation Charles, G. , Swilla, L. , Tarimo, I ...

Our lack of civic sense is trending again. A couple stopped on neat Canadian roads to throw garbage — brain drain or is that brain a drainage? If they were in India, they wouldn’t even stop. Then I ...