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  2. Solar lamp - Wikipedia

    en.wikipedia.org/wiki/Solar_lamp

    A solar lamp, also known as a solar light or solar lantern, is a lighting system composed of an LED lamp, solar panels, battery, charge controller and there may also be an inverter. The lamp operates on electricity from batteries, charged through the use of a solar photovoltaic panel. Solar-powered household lighting can replace other light ...

  3. Skylight - Wikipedia

    en.wikipedia.org/wiki/Skylight

    Solar tubes, sun tunnels, or tubular skylights consist of a roof-mounted fixed unit skylight element, condensing sunlight, distributed by a light conveying optic conduit to a light diffusing element. [3] Being small in diameter, they can be used for daylighting smaller spaces such as hallways, and bounce light in darker corners of spaces. TDDs ...

  4. Windcatcher - Wikipedia

    en.wikipedia.org/wiki/Windcatcher

    Heating of the windtower itself can heat the air inside (making it a solar chimney), so that it rises and pulls air out of the top of the house, creating a draft. This effect can be enhanced with a heat source at the bottom of the windtower ( such as humans, ~80 Watts each [ citation needed ] ), but this heats the house and makes it less ...

  5. Solar energy - Wikipedia

    en.wikipedia.org/wiki/Solar_energy

    Solar power, also known as solar electricity, is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power. Solar panels use the photovoltaic effect to convert light into an electric current . [ 63 ]

  6. 80 years later, Battle of the Bulge heroes remind us why we ...

    www.aol.com/news/80-years-later-battle-bulge...

    The 80th anniversary of the Battle of the Bulge reminds us that appeasing tyrants never works. The U.S. must continue to stand strong against tyrants like Vladimir Putin to keep America safe.

  7. Ventilation (architecture) - Wikipedia

    en.wikipedia.org/wiki/Ventilation_(architecture)

    An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines. Mechanical ventilation of buildings and structures can be achieved by the use of the following techniques: Whole-house ventilation; Mixing ventilation

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