Hot air balloon
A hot air balloon is a balloon aircraft which is lifted by hot air.
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The French Montgolfier brothers were the first pioneers of flying.
High speed generates a lift on airplane wings due to their asymmetrical profile.
The animation shows the way forces act on wheeled vehicles and vehicles with runners.
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the foundation for classical mechanics.
Submarines submerge and surface by changing the average density of the hull.
There are various types of instruments used for measuring temperature.
The range of applications of unmanned aerial vehicles ('drones') keeps growing.
The Wright Flyer was the first successful powered, heavier-than-air aircraft, designed and built by the Wright brothers.
Airports provide infrastructure and services necessary for aviation.
This animation demonstrates instruments used to examine atmospheric phenomena.