Ammonia (NH3), as one of the most common industrial chemicals, is essential for nitrogenous fertilizer production and shows potential as a next-generation green fuel. Industrial ammonia synthesis relies on the reaction of ...
Analytical Chemistry
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Increased cooperation between Norwegian industry and universities on quantum physics sensors is a win–win situation for society. Such sensors can provide new opportunities in areas as diverse as mineral extraction and agriculture.
Quantum Physics
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The Psyche mission is speeding toward its Oct. 5 launch date, preparing for the last of its launch-preparation milestones.
Space Exploration
Aug 3, 2023
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Albert Einstein's general theory of relativity is a landmark in our understanding of the universe. It gave rise to the notion of a spacetime continuum against which all physical phenomena play out. But over the decades, it ...
Quantum Physics
Jul 24, 2023
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Quantum walks have been widely studied for their ability to simulate real physical phenomena. Physicists have previously studied two distinct types of quantum walk, but so far, they haven't widely considered how their mathematical ...
Quantum Physics
Jul 14, 2023
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In the first moments of our universe, countless numbers of protons, neutrons and electrons formed alongside their antimatter counterparts. As the universe expanded and cooled, almost all these matter and antimatter particles ...
General Physics
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1929
A pair of astrophysicists, one with Princeton University, the other the University of Maryland, has developed a new theory to explain fast radio bursts (FRBs). In their paper published in the journal Physical Review Letters, ...
Controlling chemical reactions to generate new products is one of the biggest challenges in chemistry. Developments in this area impact industry, for example, by reducing the waste generated in the manufacture of construction ...
Analytical Chemistry
Jun 15, 2023
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662
Polarized electrons are electrons in which spins have a "preferred" orientation or are preferentially oriented in a specific direction. The realization of these electrons has notable implications for physics research, as ...
The demand to shrink the size of semiconductors coupled with the problem of the heat generated at the hot spots of the devices not being effectively dispersed has negatively affected the reliability and durability of modern ...
Nanophysics
Jun 1, 2023
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21
The electromagnetic field is a physical field produced by electrically charged objects. It affects the behavior of charged objects in the vicinity of the field.
The electromagnetic field extends indefinitely throughout space and describes the electromagnetic interaction. It is one of the four fundamental forces of nature (the others are gravitation, the weak interaction, and the strong interaction). The field propagates by electromagnetic radiation; in order of increasing energy (decreasing wavelength) electromagnetic radiation comprises: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
The field can be viewed as the combination of an electric field and a magnetic field. The electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field. The way in which charges and currents interact with the electromagnetic field is described by Maxwell's equations and the Lorentz force law.
From a classical perspective, the electromagnetic field can be regarded as a smooth, continuous field, propagated in a wavelike manner; whereas, from a quantum mechanical perspective, the field is seen as quantised, being composed of individual particles.
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