CHARLOTTE, N.C. – It is 10:15 a.m. and the city of Charlotte knows where its children are – a free-admission National Basketball Association preseason game called the "Cool School Field Trip" for 17,000 area middle scholars. The building, maybe even the whole banking district, could run on their juice, if only scientists could harness the preteen hormone. On the scoreboard video screen of Charlotte Bobcats Arena during an early timeout is Adam Morrison in a "Read to Achieve" T-shirt, instructing the kids to open their workbooks for a question about the state in which he was born.