Emma Brown: Canadian student Raymond Wang, 17, won the world’s largest high school science competition on Friday, taking home the top prize of $75,000 for inventing a new way to keep germs from spreading in airplane cabins. “It’s very exciting. I absolutely did not expect it,” Wang said by telephone from Pittsburgh, host city for the finals of the Intel International Science and Engineering Fair. “It’s literally the happiest day of my life.”… Wang said he decided to tackle the problem when he... Read more