3rd Entry: When each team concludes their presentation, they turn it over to the audience for a question-and-answer session. These Q&As highlight possible improvements that could be made to the presentations, recommendations for future research teams, and even interesting side discussions, such as whether or not hoisting oneself with a block-and-tackle rig would provide the same mechanical advantage as having an outside party pulling the leads instead. (The team demonstrates that lifting yourself actually provides greater advantage.) Before you know it, the presentations are complete!