nbcnews.com - 1 hour agoAn 11-year-old boy from Florida has designed a new kind of sandbag to better protect life and property from the ravages of saltwater floods. His invention took top honors at a science fair this week, earning him a $25,000 check and a trip to Costa Rica."Living in Florida, I'm keenly aware of hurricanes and saltwater flooding," the Discovery Education 3M Young Scientist Challenge grand prize winner Peyton Robertson , who is a sixth grader at the Pine Crest School in Ft.
