Lecture
This lecture concludes the unit by emphasizing the importance of understanding the presented concepts and their application before taking the final test. It also highlights the suborbital spaceflight focus, featuring an interview with Harry van Halfton, an experimental test pilot for X-Core Aerospace, who discusses the advancements in engine and aerodynamic testing for the Lynx spacecraft. The lecture ends with a hopeful message for the audience to potentially experience high altitude and high-speed flying or space travel in the future.