Many readers may remember watching "NOVA" in middle school or high school science classes, and some of us haven't seen it since -- which is a missed opportunity for both science fans and history buffs. "NOVA," PBS' award-winning documentary science series, has been doing "MythBusters" stuff since the "MythBusters" cast was in high school. This week, the show travels back to the American Revolution to explore the science of the weapons used by all sides. Did the Redcoats deserve their deadly,