Aerodynamics: How Flight Works
Aerodynamics is the study of how air flows around objects and the forces this creates. It is the science that explains how aircraft fly, how cars and…
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The Wright Brothers' First Flight
On 17 December 1903, near Kitty Hawk, North Carolina, the brothers Orville and Wilbur Wright achieved the first sustained, controlled flight of a…
International Space Station
The International Space Station, or ISS, is a large spacecraft in orbit around the Earth that serves as a home and laboratory for astronauts. The…
Renewable Energy and Electrical Grid Stability
Wind and solar generation are non-dispatchable and produce zero rotational inertia, raising legitimate concerns about frequency regulation and…
The Dyson Sphere
A Dyson sphere is a hypothetical megastructure that an extremely advanced civilization might build around a star to capture a large share of its…
The Eiffel Tower
The Eiffel Tower is a wrought iron lattice tower in Paris, France, and one of the most recognized structures in the world. Standing about 330 metres…
Electricity
Electricity is the flow and presence of electric charge, one of the fundamental forces of nature and the power source of the modern world. From the…