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  2. Solar-powered pump - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_pump

    A windpump replaced by a solar-powered pump at a water hole in the Augrabies Falls National Park. [Notes 1] This solar water pump up to 3.7 kW is useful for farmers.Solar-powered pumps run on electricity generated by photovoltaic (PV) panels or the radiated thermal energy available from collected sunlight as opposed to grid electricity- or diesel-run water pumps. [1]

  3. Solar water heating - Wikipedia

    en.wikipedia.org/wiki/Solar_water_heating

    An advertisement for a Solar Water Heater dating to 1902 Frank Shuman's sunengine on the March 1916 cover of Hugo Gernsback's The Electrical Experimenter. Records of solar collectors in the United States date to before 1900, [5] involving a black-painted tank mounted on a roof. In 1896 Clarence Kemp of Baltimore enclosed a tank in a wooden box ...

  4. Solar-assisted heat pump - Wikipedia

    en.wikipedia.org/wiki/Solar-assisted_heat_pump

    The operating conditions' optimization of this system is the main challenge, because there are two opposing trends of the performance of the two sub-systems: by way of example, decreasing the evaporation temperature of the working fluid increases the thermal efficiency of the solar panel but decreases the performance of the heat pump, and consequently the COP. [4]

  5. Natural Falls State Park - Wikipedia

    en.wikipedia.org/wiki/Natural_Falls_State_Park

    Picnic tables and grills can be found throughout the park. Campsites, including 44 RV sites and 27 tent sites, and a comfort station with showers are also on site. The park offers yurts for a rather unique overnighting experience, now called glamping. [b] At Natural Falls State Park, each yurt is a circular tent that sits above ground on a ...

  6. Message in a bottle: California family rescued from waterfall ...

    www.aol.com/news/message-bottle-california...

    A California family who got stranded on top of a waterfall managed to get help after creating their own version of a message in a bottle.. Curtis Whitson, his son, Matthew Whitson, and his ...

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