[Jon Lawton]

Okay... This year, I've been taking a more active role in the construction of my team's drivetrain. All of the sudden I have found myself in need of a *lot* more physics quickly! We have adult mentors, but they all seem to have different opinions and different ideas and even different formulas! What it comes down to is: I need to lock myself in my room with a physics-learning-tool and assimilate it. SO, finally, my question is: "What have you, or your team, found useful in learning about the physics behind the robot [drive train, in particular]? Thanks for your input!