Business
United Airlines reached an agreement to purchase 25 more Boeing 737 MAX aircraft for delivery in 2023, the carrier said Monday, in a sign of an expected post-coronavirus travel industry recovery.
Mar 01, 2021
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Engineering
The human central nervous systems provide us with the first hint that we're not well. Now, UNSW Canberra researchers are one step closer to developing aircraft that can 'feel' with similar sensory perception.
13 hours ago
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An aircraft is a vehicle which is able to fly by being supported by the air, or in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift (as with balloons, blimps and dirigibles) or by using the dynamic lift of an airfoil (as with vehicles that plane the air with wings in a straight manner, such as airplanes and gliders, or vehicles that generate lift with wings in a rotary manner, such as helicopters or gyrocopters).
Although rockets and missiles also travel through the atmosphere, they are not considered aircraft because they use rocket thrust instead of aerodynamic loading as the primary means of lift. A cruise missile relies on a lifting wing throughout the majority of its flight regime.
The human activity which surrounds aircraft is called aviation. Manned aircraft are flown by an onboard pilot. Unmanned aerial vehicles may be [[remotely controlled or self-controlled by onboard computers. Target drones are an example of UAVs.
This text uses material from Wikipedia, licensed under CC BY-SA
