A Spreadsheet’s 24 Hours to Save Hundreds of Lives in 1-in-500-year Rainfall Event

(Source: Pandaily)

When heavy rains on July 20 started to pound Zhengzhou, the capital of east-central China’s Henan province, inundating streets, flooding residential buildings and wreaking havoc on the entire city, one college girl, with the help of a simple spreadsheet, may have saved hundreds of lives.

The fate of that single electronic sheet, circula…