By HATEM MOUSSA, Associated Press BEIT HANOUN, Gaza Strip (AP) — Whenever Mohammed al-Shenbari sees a new object, he quickly tries to find its "balancing point" and make it stand in a way that appears to defy the law of gravity. The 24-year-old self-taught Palestinian artist says he can balance almost any object, using what he calls a mix of mind and body. This has made him a popular entertainer and