CLEAN : Airbus backs a glider setting sights on the stratosphere

The video discusses the impact of oxygen on design, the significance of mountain waves in climate and weather, and the use of lightweight materials in high-altitude flights. It highlights the scientific research goals of understanding mountain waves, particularly in Argentina, and the application of materials like carbon fiber in aviation.

What natural phenomenon is used as an analogy to explain mountain waves?

• River waves

• Forest winds

• Ocean tides

• Desert dunes

What is the primary goal of the research on mountain waves?

• Breaking altitude records

• Improving aircraft speed

• Scientific research

• Developing new materials

Where is the research on mountain waves planned to take place?

• Australia

• Argentina

• Antarctica

• Alaska

What material is mentioned as being used in aircraft design?

• Carbon fiber

• Steel

• Aluminum

• Titanium

What is the target altitude for the unpowered aircraft mentioned in the video?

• 70,000 feet

• 60,000 feet

• 90,000 feet

• 80,000 feet