This is a story about a box. That's it, just a box. "It's not rocket science," said Rudy Youell. "It's almost so stupid it's ridiculous. But it's saving so much money it's amazing." His simple box ...

One afternoon, a dozen Arizona State University students gathered to spend the morning cutting cardboard, taping fans, and assembling filters in an effort to build 125 portable air purifiers for local ...