Cheap charcoal air filters offer improvements to in-vehicle air quality
A cheap charcoal air filter can reduce nitrogen dioxide (NO2) inside vehicles by as much as 90%, compared to levels outside the vehicle.
Mar 6, 2023
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Energy & Green Tech
News tagged with nitrogen
Engineering
New quantum sensing technique reveals magnetic connections
Say you notice a sudden drop in temperature on both your patio and kitchen thermometers. At first, you think it's because of a cold snap, so you crank up the heat in your home. Then you realize that while the outside has ...
Feb 16, 2023
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Consumer & Gadgets
Air purifiers: Indoor pollution kills but many devices are ineffective and some may even cause harm
Air pollution kills around 7 million people each year. Most of these deaths occur in developing countries, where solid fuel is often burned in poorly ventilated spaces. However, between 26,000 and 38,000 of those deaths occur ...
Dec 15, 2022
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Engineering
Computer simulations show how nitrogen injections can help flush oil from underground storage
Industrial-scale injection of gases into geological rock reservoirs is of increasing importance for the energy sector for uses ranging from flushing out remaining fossil fuels to locking away CO2 emissions and preventing ...
Dec 7, 2022
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9
Energy & Green Tech
Researchers create green fuel with the flip of a light switch
Researchers at Princeton and Rice universities have combined iron, copper, and a simple LED light to demonstrate a low-cost technique that could be key to distributing hydrogen, a fuel that packs high amounts of energy with ...
Nov 25, 2022
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132
Energy & Green Tech
EU proposes emission rules for last combustion engine cars
The European Union's executive arm proposed pollution standards Thursday for new combustion engine vehicles that are expected to remain on European roads well after the 27-nation bloc bans their sale in 2035.
Nov 10, 2022
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Energy & Green Tech
Why the aviation industry must look beyond carbon to get serious about climate change
Commercial aviation has become a cornerstone of our economy and society. It allows us to rapidly transport goods and people across the globe, facilitates over a third of all global trade by value, and supports 87.7 million ...
Sep 2, 2022
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Engineering
Reducing energy consumption: Researchers develop test system for passive cooling materials
Passive day cooling is a promising technology for the sustainable reduction of energy consumption. It avoids the heating up of buildings by solar radiation and dissipates accumulated heat without external energy consumption. ...
Jul 18, 2022
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369
Energy & Green Tech
New iron catalyst could make hydrogen fuel cells affordable
For decades, scientists have been searching for a catalyst that dramatically reduces the cost of fabricating hydrogen fuel cells.
Jul 7, 2022
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Engineering
New breathable gas sensors may improve monitoring of health, environment
Newly developed flexible, porous and highly sensitive nitrogen dioxide sensors that can be applied to skin and clothing have potential applications in health care, environmental health monitoring and military use, according ...
May 20, 2022
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Nitrogen
Nitrogen (pronounced /ˈnaɪtrədʒɨn/) is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.
Many industrially important compounds, such as ammonia, nitric acid, organic nitrates (propellants and explosives), and cyanides, contain nitrogen. The extremely strong bond in elemental nitrogen dominates nitrogen chemistry, causing difficulty for both organisms and industry in converting the N2 into useful compounds, and releasing large amounts of energy when these compounds burn or decay back into nitrogen gas.
The element nitrogen was discovered by Daniel Rutherford, a Scottish physician, in 1772. Nitrogen occurs in all living organisms. It is a constituent element of amino acids and thus of proteins, and of nucleic acids (DNA and RNA). It resides in the chemical structure of almost all neurotransmitters, and is a defining component of alkaloids, biological molecules produced by many organisms.
This text uses material from Wikipedia, licensed under CC BY-SA
