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  2. Solar energy conversion - Wikipedia

    en.wikipedia.org/wiki/Solar_energy_conversion

    Many steam generation systems have adapted to using sunlight as a primary source for heating feed water, a development that has greatly increased the overall efficiency of boilers and many other types of waste heat recovery systems. Solar cookers use sunlight for cooking, drying and pasteurization. Solar distillation is used for water treatment ...

  3. Photosynthesis - Wikipedia

    en.wikipedia.org/wiki/Photosynthesis

    Photosynthesis (/ ˌ f oʊ t ə ˈ s ɪ n θ ə s ɪ s / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their metabolism.

  4. Photosynthetic efficiency - Wikipedia

    en.wikipedia.org/wiki/Photosynthetic_efficiency

    The following is a breakdown of the energetics of the photosynthesis process from Photosynthesis by Hall and Rao: [6]. Starting with the solar spectrum falling on a leaf, 47% lost due to photons outside the 400–700 nm active range (chlorophyll uses photons between 400 and 700 nm, extracting the energy of one 700 nm photon from each one)

  5. Sunlight - Wikipedia

    en.wikipedia.org/wiki/Sunlight

    Sunlight is a key factor in photosynthesis, the process used by plants and other autotrophic organisms to convert light energy, normally from the Sun, into chemical energy that can be used to synthesize carbohydrates and fuel the organisms' activities. Daylighting is the natural lighting of interior spaces by admitting sunlight.

  6. Renewable thermal energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_thermal_energy

    The most popular form of renewable thermal energy is the sun and the solar energy is harvested by solar collectors to heat water, buildings, pools and various processes. Another example of Renewable Thermal is a Geothermal or ground source Heat Pump (GHP) system, where thermal stored in the ground from the summer is extracted from the ground to ...

  7. Man severely injured protecting wife from polar bear attack

    www.aol.com/man-severely-injured-protecting-wife...

    A man suffered severe injuries early Tuesday after being attacked by a polar bear in Canada, according to police. "The man who leapt onto a polar bear to protect his wife from being mauled is ...

  8. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    Unlike photovoltaic cells that convert sunlight directly into electricity, solar thermal systems convert it into heat. They use mirrors or lenses to concentrate sunlight onto a receiver, which in turn heats a water reservoir. The heated water can then be used in homes.

  9. Human composting is rising in popularity as an earth-friendly ...

    www.aol.com/human-composting-rising-popularity...

    Human composting turns bodies into soil by speeding up “what happens on the forest floor,” according to Tom Harries, CEO of Earth Funeral, the human composting company the Muckenhoupt family ...

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