The first rumblings of the sun's next 11-year solar cycle have been detected in sound waves inside our home star—even though it is only halfway through its current one.
Astronomy
Jul 18, 2024
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108
Commercial greenhouses in Europe are testing new energy and water efficiency technologies in support of the green transition.
Agriculture
Jul 17, 2024
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0
In the search for more efficient and sustainable energy generation methods, a class of materials called metal halide perovskites have shown great promise. In the few years since their discovery, novel solar cells based on ...
Optics & Photonics
Jul 17, 2024
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2
H2O2, a green oxidant and clean fuel, is in high demand across chemical industries, environmental treatments, and even aerospace. However, traditional production methods rely on energy-intensive processes that are not environmentally ...
Analytical Chemistry
Jul 15, 2024
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12
A research team developed hybrid bio-nanostructures then used them to fabricate fibrous solar cells (FSCs) and fibrous organic light-emitting diodes (FOLEDs) that demonstrated high performance and stability across a wide ...
Nanomaterials
Jul 8, 2024
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1
A research team designed and built a photoenzymatic cascade by combining photochemical water oxidation/O2 reduction with P450 peroxygenase catalysis to achieve efficient visible-light-driven oxidation of a range of fatty ...
Biochemistry
Jul 8, 2024
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0
Humanity has made great strides in recent decades: air is cleaner; poverty, deforestation and childhood mortality have fallen; gasoline cars—and maybe coal—are on the way out.
Environment
Jul 7, 2024
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61
Carbon in the atmosphere is a major driver of climate change. Now researchers from McGill University have designed a new catalyst for converting carbon dioxide (CO2) into methane—a cleaner source of energy—using tiny ...
Materials Science
Jul 4, 2024
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222
Inelastic scattering off moving or oscillating density fluctuations leads to broadening of radio signals propagating in the solar corona and solar wind. Using an anisotropic density fluctuation model from the kinetic scattering ...
Astronomy
Jul 2, 2024
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3
The United States on Tuesday launched a new satellite expected to significantly improve forecasts of solar flares and coronal mass ejections—huge plasma bubbles that can crash into Earth, disrupting power grids and communications.
Planetary Sciences
Jun 25, 2024
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55
Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used.
Solar power provides electrical generation by means of heat engines or photovoltaics. Once converted, its uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, hot water, thermal energy for cooking, and high temperature process heat for industrial purposes.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight. Active solar techniques include the use of photovoltaic panels and solar thermal collectors (with electrical or mechanical equipment) to convert sunlight into useful outputs. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
This text uses material from Wikipedia, licensed under CC BY-SA
