Engineering
For more than half a century, the 1,000-foot-diameter spherical reflector dish at the Arecibo Observatory in Puerto Rico was the largest radio telescope in the world. Completed in 1963, the dish was built in a natural sinkhole, ...
Aug 15, 2023
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Energy & Green Tech
Like most scientists, Chengping Chai is not content with the surface of things: He wants to probe beyond to learn what's really going on. But in his case, he is literally building a map of the world beneath, using seismic ...
Jun 12, 2023
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Energy & Green Tech
Hydrogen, seen as the "ultimate energy" for the 21st century, boasts benefits such as being clean and renewable as well as storable and versatile. The International Energy Agency predicts that 115 million tons of hydrogen ...
May 9, 2023
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Electronics & Semiconductors
Finding a simple and efficient green energy conversion technology is an essential component of the plan to achieve carbon neutrality and sustainable green energy while also satisfying the increased demand for electrical power.
Feb 27, 2023
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4
Energy & Green Tech
As carbon dioxide continues to build up in the Earth's atmosphere, research teams around the world have spent years seeking ways to remove the gas efficiently from the air. Meanwhile, the world's number one "sink" for carbon ...
Feb 16, 2023
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Engineering
Over the last year, the world's energy market has been highly volatile. The warmer-than-average winter in Europe helped avoid a gas crisis this year, but the forecast for the next winter is unclear as instabilities persist. ...
Jan 23, 2023
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Telecom
A team of Western Australian researchers have found a way to avoid the need to use radio transmitters in critical communications, using new technology featuring super-fast optical lasers.
Nov 9, 2022
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Engineering
Scientists at the Swiss Plasma Center at EPFL, in collaboration with Beyond Gravity and with the support of the ESA, have developed a slip ring assembly that can more than triple the operational voltage of new-generation, ...
Nov 2, 2022
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Engineering
Wearable devices have garnered attention for their potential as sensors that could monitor various biomarkers, a means of drug delivery, medical devices and more. In order for these wearable devices to be functional and practical, ...
Oct 31, 2022
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Robotics
Drones and similar small unmanned aerial vehicles (sUAVs) have seen a massive surge in popularity over the past few years due to their innovative applications, such as crop monitoring, search and rescue operations, and coast ...
Oct 27, 2022
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An atmosphere (from Greek ατμός - atmos, 'vapor' + σφαίρα - sphaira, 'sphere') is a layer of gases that may surround a material body of sufficient mass, by the gravity of the body, and are retained for a longer duration if gravity is high and the atmosphere's temperature is low. Some planets consist mainly of various gases, but only their outer layer is their atmosphere (see gas giants).
The term stellar atmosphere describes the outer region of a star, and typically includes the portion starting from the opaque photosphere outwards. Relatively low-temperature stars may form compound molecules in their outer atmosphere. Earth's atmosphere, which contains oxygen used by most organisms for respiration and carbon dioxide used by plants, algae and cyanobacteria for photosynthesis, also protects living organisms from genetic damage by solar ultraviolet radiation. Its current composition is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms.
This text uses material from Wikipedia, licensed under CC BY-SA
