Engineering
Metal processing with lasers and plasma releases many different pollutants into the ambient air. The Fraunhofer Institute for Material and Beam Technology IWS, together with partners, has developed a filter system that efficiently ...
Oct 1, 2021
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24
Automotive
Volkswagen of America issued false statements this week saying it would change its brand name to "Voltswagen," as a way to stress its commitment to electric vehicles, only to reverse course Tuesday and admit that the supposed ...
Mar 31, 2021
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5
Energy & Green Tech
NASA is seeking proposals for ground and flight demonstrations of integrated megawatt-class powertrain systems for subsonic aircraft. The deadline for proposals for this solicitation is 5 p.m. EST April 20.
Feb 24, 2021
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5
Automotive
The European Union's top court ruled on Thursday that Volkswagen breached the law by installing on its cars a so-called defeat device to cheat on emission tests and cannot argue it was merely protecting car engines.
Dec 17, 2020
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Energy & Green Tech
Petrol and diesel vehicles will be banned from a street in central London in an innovative attempt to reduce pollution, local authorities said.
Dec 17, 2019
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Engineering
An international team of scientists, led by the University of Manchester, has developed a metal-organic framework, or MOF, material that provides a selective, fully reversible and repeatable capability to capture a toxic ...
Nov 23, 2019
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53
Automotive
An engine innovation first conceived and tested by Sandia National Laboratories has attracted the attention of big business because of its potential to cost-effectively reduce emissions of soot and nitrogen oxides, encourage ...
Oct 24, 2019
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Automotive
South Korean shipbuilding and industrial firm Hyundai Heavy Industries will pay a $47 million fine for illegally importing and selling dirty diesel engines in violation of American environmental rules, US authorities announced ...
Sep 20, 2019
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Hardware
(Tech Xplore)—Joel Hruska in ExtremeTech notes that the all-core clock on a Core i9-7980XE drops to 3.4GHz under full load, to keep power consumption at a manageable level. But then there is liquid nitrogen and an overclocker ...
Energy & Green Tech
A research team has published new research on edge-nitrogen doped porous carbon for energy-storage potassium-ion hybrid capacitors in Energy Material Advances.
Mar 6, 2024
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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.
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