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Soap bubble
A soap bubble is a very thin film of soap water that forms a hollow sphere with an iridescent surface. Soap bubbles usually last for only a few moments and then burst either on their own or on ... > more -
Television
Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. Color television in the United States had a protracted history due to conflicting ... > more -
Energy and the Environment
Solar Energy
Renewable Energy
Geomagnetic Storms
Environmental Science
Sustainability
Solar panel
Solar panels are devices for capturing the energy in sunlight. The term solar panel can be applied to either solar hot water panels (usually used for providing domestic hot water) or solar ... > more -
Jet engine
A jet engine is any engine that accelerates and discharges a fast moving jet of fluid to generate thrust in accordance with Newton's third law of ... > more -
Antikythera mechanism
The Antikythera mechanism is an ancient mechanical analog computer (as opposed to digital computer) designed to calculate astronomical positions. It was discovered in the Antikythera wreck off the ... > more -
Satellite television
Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable ... > more
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