Grandma’s little genius

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Grandma’s little genius: A 13-year-old from California out-invented the Life Alert people. Kevin Tang built “FallGuard,” a $30 camera system that spots falls, using an algorithm he coded himself. No necklaces, no subscriptions, no forgetting to charge your smartwatch. He built it after his grandma’s fall caused brain damage. He’s got $25K and a waiting list. Go Kevin!