In greening air travel, small parts can make a big difference
Aircraft flaps and emergency power units are part of efforts to reduce the aviation industry's contribution to global warming.
Jul 14, 2023
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Energy & Green Tech
Aircraft flaps and emergency power units are part of efforts to reduce the aviation industry's contribution to global warming.
Jul 14, 2023
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Business
A building block of modern society and a sizeable contributor to climate change, steel is prompting a hunt for cutting-edge technologies to decarbonize the sector.
Jun 21, 2023
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Energy & Green Tech
As the world faces an increasing demand for clean and sustainable energy sources, scientists are turning to the power of photosynthesis for inspiration. With the goal of developing new, environmentally friendly techniques ...
May 10, 2023
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Engineering
According to a study recently published in Remote Sensing, researchers led by Prof. Xiong Wei from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences conducted a study to verify and calibrate the ...
May 5, 2023
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Robotics
As evidence mounts that gas drilling and sewer systems leak far more greenhouse gases than previously believed, a team of Princeton researchers has developed a method to pinpoint leaks both big and small for speedy repair.
Apr 14, 2023
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Engineering
Pawel Olszewski, a University of Wisconsin Oshkosh associate mechanical engineering technology professor, recently was granted a U.S. patent for his flameless impingement oven, designed and built in the Teaching and Energy ...
Apr 3, 2023
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Energy & Green Tech
Using solar and battery power can reduce costs and emissions associated with providing power to refugee camps, researchers have found.
Mar 9, 2023
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Energy & Green Tech
Aotearoa New Zealand is likely to have a competitive advantage when it comes to generating clean, green hydrogen and this edge should help the country reduce its future reliance on fossil fuels, says a leading sustainable ...
Mar 8, 2023
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Energy & Green Tech
There are plans in Ă…rdal to build a waste incineration plant based on a new technology that captures and stores CO2, thus removing the greenhouse gas from the atmosphere.
Feb 16, 2023
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Energy & Green Tech
In the future, ammonia could play a decisive role in the transition from fossil fuels to climate-friendly alternatives—as long as it is produced from green hydrogen, for example, using renewable energy sources. Ammonia ...
Feb 15, 2023
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Gas is one of the three classical states of matter (the others being liquid and solid). Near absolute zero, a substance exists as a solid. As heat is added to this substance it melts into a liquid at its melting point (see phase change), boils into a gas at its boiling point, and if heated high enough would enter a plasma state in which the electrons are so energized that they leave their parent atoms from within the gas. A pure gas may be made up of individual atoms (e.g. a noble gas or atomic gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image.
The gaseous state of matter is found between the liquid and plasma states, the latter of which provides the upper temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases which are gaining increased attention these days. High-density atomic gases super cooled to incredibly low temperatures are classified by their statistical behavior as either a Bose gas or a Fermi gas. For a comprehensive listing of these exotic states of matter see list of states of matter.
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