Electric Fields - Dr. Fehmi Bardak
... (Experiments such as these work best on a dry day because an excessive amount of moisture in the air can cause any charge you build up to “leak” from your body to the Earth.) In a series of simple experiments, it was found that there are two kinds of electric charges, which were given the names posi ...
... (Experiments such as these work best on a dry day because an excessive amount of moisture in the air can cause any charge you build up to “leak” from your body to the Earth.) In a series of simple experiments, it was found that there are two kinds of electric charges, which were given the names posi ...
Thin-shell instability in collisionless plasma
... plasmas. The bow shock that separates the solar wind from the Earth’s magnetopause is probably the best-understood plasma shock [1,2]. Even larger shocks can form where energetic plasma outflows collide with the interstellar medium. The solar wind termination shock separates the heliosphere from the ...
... plasmas. The bow shock that separates the solar wind from the Earth’s magnetopause is probably the best-understood plasma shock [1,2]. Even larger shocks can form where energetic plasma outflows collide with the interstellar medium. The solar wind termination shock separates the heliosphere from the ...
- Sussex Research Online
... of seconds without being scattered out of the UCN energy range. This was possible because the thermal motions of individual nuclei in the walls of the trap were sensed only weakly by the UCN, which were reflected by the combined coherent scattering from millions of nuclei lying within a short dista ...
... of seconds without being scattered out of the UCN energy range. This was possible because the thermal motions of individual nuclei in the walls of the trap were sensed only weakly by the UCN, which were reflected by the combined coherent scattering from millions of nuclei lying within a short dista ...
Optomechanics of Soft Materials Ruobing Bai
... for the two-way, light–structure interaction. Our task is simplified by two considerations. First, the permittivity and permeability of a soft dielectric are insensitive to deformation [40]. A soft dielectric is a three dimensional network of polymer. The number of crosslinks between the polymer cha ...
... for the two-way, light–structure interaction. Our task is simplified by two considerations. First, the permittivity and permeability of a soft dielectric are insensitive to deformation [40]. A soft dielectric is a three dimensional network of polymer. The number of crosslinks between the polymer cha ...
An Experimental Study of Plasma Detachment
... or charge-exchange interactions) which will alter unimpeded fluxes and potentially mask the underlying physics. A third requirement involves exploring over an adequate scale length for a magnetic nozzle where the magnetic field strengths extend a few orders of magnitude so as to test over a wide ran ...
... or charge-exchange interactions) which will alter unimpeded fluxes and potentially mask the underlying physics. A third requirement involves exploring over an adequate scale length for a magnetic nozzle where the magnetic field strengths extend a few orders of magnitude so as to test over a wide ran ...
Hwang, J. G., M. Zahn, F. O Sullivan, L. A. A. Pettersson, O. Hjortstam, and R. Liu, Effects of nanoparticle charging on streamer development in transformer oil-based nanofluids, Journal of Applied Physics, 107, 014310-1 to 014310-17, January, 2010
... with several other materials. The relaxation time constant of the magnetite in transformer oil is r共Fe3O4兲 = 7.47⫻ 10−14 s. As this shows, the relaxation time constant for magnetite nanoparticles in transformer oil is extremely short. Relative to the nanosecond to microsecond timescales involved in ...
... with several other materials. The relaxation time constant of the magnetite in transformer oil is r共Fe3O4兲 = 7.47⫻ 10−14 s. As this shows, the relaxation time constant for magnetite nanoparticles in transformer oil is extremely short. Relative to the nanosecond to microsecond timescales involved in ...
Applied Superconductivity: Josephson Effects and Superconducting
... Superconducting Microwave Detectors: Direct Detectors . . . . . . . . . . . . . . . . . 297 NEP of Direct Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 ...
... Superconducting Microwave Detectors: Direct Detectors . . . . . . . . . . . . . . . . . 297 NEP of Direct Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 ...
DIELECTRIC PROPERTIES OF COLLOIDAL SUSPENSIONS Lei
... described how to obtain colloidal gold as a red sol by treating chloroauric acid with a variety of reducing agents in his famous Bakerian Lecture on “Experimental relations of gold (and other metals) to light” [4]. He found that these sols can be stabilized kinetically. However, these stabilizations ...
... described how to obtain colloidal gold as a red sol by treating chloroauric acid with a variety of reducing agents in his famous Bakerian Lecture on “Experimental relations of gold (and other metals) to light” [4]. He found that these sols can be stabilized kinetically. However, these stabilizations ...
Relativistic lagrangian non-linear field theories supporting non-topological soliton solutions UNIVERSIDAD DE OVIEDO
... solutions of conservative non-linear differential equations. However, the accepted meaning and content of the term stable is not universal. In a strong sense, it refers to the existence of soliton entities which can be identified (if present) in field configurations and are preserved by the dynamic ...
... solutions of conservative non-linear differential equations. However, the accepted meaning and content of the term stable is not universal. In a strong sense, it refers to the existence of soliton entities which can be identified (if present) in field configurations and are preserved by the dynamic ...
Book 4 in the Light and Matter series of free - IA
... type. Various interpretations of this are possible, but the simplest is that the basic building blocks of matter come in two flavors, one with each type of charge. Rubbing objects together results in the transfer of some of these particles from one object to the other. In this model, an object that ...
... type. Various interpretations of this are possible, but the simplest is that the basic building blocks of matter come in two flavors, one with each type of charge. Rubbing objects together results in the transfer of some of these particles from one object to the other. In this model, an object that ...
Field (physics)
In physics, a field is a physical quantity that has a value for each point in space and time. For example, on a weather map, the surface wind velocity is described by assigning a vector to each point on a map. Each vector represents the speed and direction of the movement of air at that point. As another example, an electric field can be thought of as a ""condition in space"" emanating from an electric charge and extending throughout the whole of space. When a test electric charge is placed in this electric field, the particle accelerates due to a force. Physicists have found the notion of a field to be of such practical utility for the analysis of forces that they have come to think of a force as due to a field.In the modern framework of the quantum theory of fields, even without referring to a test particle, a field occupies space, contains energy, and its presence eliminates a true vacuum. This lead physicists to consider electromagnetic fields to be a physical entity, making the field concept a supporting paradigm of the edifice of modern physics. ""The fact that the electromagnetic field can possess momentum and energy makes it very real... a particle makes a field, and a field acts on another particle, and the field has such familiar properties as energy content and momentum, just as particles can have"". In practice, the strength of most fields has been found to diminish with distance to the point of being undetectable. For instance the strength of many relevant classical fields, such as the gravitational field in Newton's theory of gravity or the electrostatic field in classical electromagnetism, is inversely proportional to the square of the distance from the source (i.e. they follow the Gauss's law). One consequence is that the Earth's gravitational field quickly becomes undetectable on cosmic scales.A field can be classified as a scalar field, a vector field, a spinor field or a tensor field according to whether the represented physical quantity is a scalar, a vector, a spinor or a tensor, respectively. A field has a unique tensorial character in every point where it is defined: i.e. a field cannot be a scalar field somewhere and a vector field somewhere else. For example, the Newtonian gravitational field is a vector field: specifying its value at a point in spacetime requires three numbers, the components of the gravitational field vector at that point. Moreover, within each category (scalar, vector, tensor), a field can be either a classical field or a quantum field, depending on whether it is characterized by numbers or quantum operators respectively. In fact in this theory an equivalent representation of field is a field particle, namely a boson.