CLEAN: Boeing's Dreamliner completes first flight outside US

The video discusses recent system advancements in aviation, highlighting the readiness of planes for flight with improved performance. It explains how lower cabin altitude enhances passenger comfort by providing more oxygen, making long flights more pleasant. Additionally, the video covers features like adjustable windows and the successful testing of navigation and environmental control systems.

Describe the functionality of the windows in the airplane.

What are the benefits of the environmental control system mentioned?