Students test the inflated bag as a possible flotation device for a model cell phone made of clay ... If you are near a pool, lake, river, or ocean your cell phone could be in danger. Maybe there’s a ...

PITTSBURGH, March 24, 2025 /PRNewswire/ -- "I wanted to create a way to quickly and effectively retrieve a person who may be struggling to stay afloat in any body of water," said an inventor, from ...