Business

United Airlines posts $1.9 billion loss in pandemic-laden 4Q

United Airlines said Wednesday that it finished one of the worst years in its history by losing $1.9 billion in the last three months of 2020, and it predicted more of the same in the first quarter of this year.

Engineering

Army looks to improve quadrotor drone performance

When an aircraft veers upwards too much, the decrease in lift and increase in drag may cause the vehicle to suddenly plummet. Known as a stall, this phenomenon has prompted many drone manufacturers to err on the side of extreme ...

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Flight

Flight is the process by which an object moves either through an atmosphere (especially the air) or beyond it (as in the case of spaceflight) by generating lift or propulsive thrust, or aerostatically using buoyancy, or by simple ballistic movement.

The engineering aspects of flight is studied in aerospace engineering which is subdivided into aeronautics, which is the study of vehicles that travel through the air, and astronautics, the study of vehicles that travel through space.

This text uses material from Wikipedia, licensed under CC BY-SA