Physics From The Junk Drawer
... the world around us involves science. A child (or teacher) can investigate some pretty interesting stuff without requiring a laboratory or expensive laboratory equipment or dangerous chemicals. These activities came from a teacher-training workshops - Physics From the Junk Drawer - that has been off ...
... the world around us involves science. A child (or teacher) can investigate some pretty interesting stuff without requiring a laboratory or expensive laboratory equipment or dangerous chemicals. These activities came from a teacher-training workshops - Physics From the Junk Drawer - that has been off ...
New Developments in Transmission Electron Microscopy for
... Platinum nanoparticles with a high percentage of cubic-, tetrahedral-, and octahedral-like shapes, respectively, have been synthesized by changing the ratio of the concentration of polymer capping material (polyacrylate) to that of Pt2+ ions being reduced by H2 from K2PtCl4 at room temperature.[16] ...
... Platinum nanoparticles with a high percentage of cubic-, tetrahedral-, and octahedral-like shapes, respectively, have been synthesized by changing the ratio of the concentration of polymer capping material (polyacrylate) to that of Pt2+ ions being reduced by H2 from K2PtCl4 at room temperature.[16] ...
CP Chemistry - Final Exam Review KEY
... A chemical change results in a new, different substance, while a physical change does not. Chemical changes are shown with bubbling, color change, precipitate formation, temperature change and a substance “disappearing.” What is the law of conservation of mass? Give an example to explain it. The ...
... A chemical change results in a new, different substance, while a physical change does not. Chemical changes are shown with bubbling, color change, precipitate formation, temperature change and a substance “disappearing.” What is the law of conservation of mass? Give an example to explain it. The ...
Transparency of Magnetized Plasma at the Cyclotron Frequency
... induced transparency (EIT) of three-level atomic systems, except that it occurs in a completely classical plasma. Unlike the atomic systems, where all the excited levels required for EIT exist in each atom, this classical EIT requires the excitation of nonlocal plasma oscillation. A Lagrangian descr ...
... induced transparency (EIT) of three-level atomic systems, except that it occurs in a completely classical plasma. Unlike the atomic systems, where all the excited levels required for EIT exist in each atom, this classical EIT requires the excitation of nonlocal plasma oscillation. A Lagrangian descr ...
See also "SPINNING MAGNETIC FIELDS"
... It is clear from the above expressions that the electric field observed by the stationary observer subject to the M hypothesis is strictly conservative by definition, although it is dynamic and magnetic according to its origin, It is not the Coulomb-type field, except in the equatorial plane. Anoth ...
... It is clear from the above expressions that the electric field observed by the stationary observer subject to the M hypothesis is strictly conservative by definition, although it is dynamic and magnetic according to its origin, It is not the Coulomb-type field, except in the equatorial plane. Anoth ...
A Simulation Technique of Non-Destructive Testing using Magneto
... Nondestructive Testing (NDT) is a noninvasive technique used to determine the integrity, safety and maintenance of engineering systems. It makes assessments without doing harm, applying stress or destroying the test object. NDT is used widely in industrial areas such as aerospace, power generation, ...
... Nondestructive Testing (NDT) is a noninvasive technique used to determine the integrity, safety and maintenance of engineering systems. It makes assessments without doing harm, applying stress or destroying the test object. NDT is used widely in industrial areas such as aerospace, power generation, ...
luminescence studies of rare earth (europium) doped nano
... The optical properties of rare-earth (RE) ions in different host materials have been extensively studied for several years. Although there are several reports on this subject, in recent years, considerable attention has been focused on submicrometer /nanometer-sized particles doped with RE ions, sin ...
... The optical properties of rare-earth (RE) ions in different host materials have been extensively studied for several years. Although there are several reports on this subject, in recent years, considerable attention has been focused on submicrometer /nanometer-sized particles doped with RE ions, sin ...
(DOC, Unknown) - Natural Philosophy Alliance
... Abstract For the first time in the human & scientific history the concepts of absolute space, emergent & relative time and aether or ether of classical physics (dark energy of modern physics now named as Luminiferous Energy) have been conceived simultaneously. The mystery of the above three concepts ...
... Abstract For the first time in the human & scientific history the concepts of absolute space, emergent & relative time and aether or ether of classical physics (dark energy of modern physics now named as Luminiferous Energy) have been conceived simultaneously. The mystery of the above three concepts ...
BGK electron solitary waves: 1D and 3D
... have been observed. Negative potential pulses observed in the auroral upward current region (Boström et al., 1988; Mälkki et al., 1993) have been shown to possess properties that are consistent with Bernstein-Greene-Kruskal (BGK) ion mode solitary waves in 1D (Bernstein et al., 1957; Mälkki et al ...
... have been observed. Negative potential pulses observed in the auroral upward current region (Boström et al., 1988; Mälkki et al., 1993) have been shown to possess properties that are consistent with Bernstein-Greene-Kruskal (BGK) ion mode solitary waves in 1D (Bernstein et al., 1957; Mälkki et al ...
Spin-dependent electron impact ionisation of lithium from threshold
... adapted from a design of Kuyatt and Plummer (1972). For additional information electron trajectories through this system have been calculated with a computer program (Fink and Kisker 1980). The lenses are made of a special austenitic Ni-Cr stainless steel (german steel classification 1.3952). The sm ...
... adapted from a design of Kuyatt and Plummer (1972). For additional information electron trajectories through this system have been calculated with a computer program (Fink and Kisker 1980). The lenses are made of a special austenitic Ni-Cr stainless steel (german steel classification 1.3952). The sm ...
Crystal Structure and Superconductivity of
... the samples were determined by using X-ray diffraction technique, while magnetic moment measurements were made to determine Tc of each sample. ...
... the samples were determined by using X-ray diffraction technique, while magnetic moment measurements were made to determine Tc of each sample. ...
Equatorially trapped plasmas and parallel electric fields
... plasma parameters, following the forms developed by Whipple (1977). If the core electron anisotropy is low, the resulting electric field of ~0.1 µV m-1 is pointed away from the equator. Under these conditions the self-consisten electric field will not overcome the effects of magnetic trapping. The r ...
... plasma parameters, following the forms developed by Whipple (1977). If the core electron anisotropy is low, the resulting electric field of ~0.1 µV m-1 is pointed away from the equator. Under these conditions the self-consisten electric field will not overcome the effects of magnetic trapping. The r ...
Ta alloys, studied by X-ray diffraction and molecular dynamics
... Abstract—In this study a direct comparison between lattice spacings predicted by molecular dynamics (MD) simulations and values measured from sputtered Cu–Ta films by X-ray diffraction (XRD) is reported. The study spans the entire composition range between pure Cu and pure Ta and takes into account al ...
... Abstract—In this study a direct comparison between lattice spacings predicted by molecular dynamics (MD) simulations and values measured from sputtered Cu–Ta films by X-ray diffraction (XRD) is reported. The study spans the entire composition range between pure Cu and pure Ta and takes into account al ...
1 What is the angular momentum quantum number (l) value for the
... Which of the following is equal to the mass of KClO3 that is needed to produce 32.0 g of O2? A 40.8 g INCORRECT: The mass of KClO3 needed to produce 32.0 g of O2 is 81.7 g given that the molar mass of O2 is 32.0 g/mol, the molar mass of KClO3 is 122.5 g/mol, and the mole ratio is 2 mol of KClO3 to ...
... Which of the following is equal to the mass of KClO3 that is needed to produce 32.0 g of O2? A 40.8 g INCORRECT: The mass of KClO3 needed to produce 32.0 g of O2 is 81.7 g given that the molar mass of O2 is 32.0 g/mol, the molar mass of KClO3 is 122.5 g/mol, and the mole ratio is 2 mol of KClO3 to ...
Five lectures on effective field theory
... are quadratic in φbk become O(1), at which point the terms with higher powers of φbk are still small. What happens as we vary k? We see from eq. (3) that as k is reduced, the cn and dn terms, proportional to (k2 /Λ2 )n , get smaller. Such operators are termed “irrelevant” in Wilson’s language, becau ...
... are quadratic in φbk become O(1), at which point the terms with higher powers of φbk are still small. What happens as we vary k? We see from eq. (3) that as k is reduced, the cn and dn terms, proportional to (k2 /Λ2 )n , get smaller. Such operators are termed “irrelevant” in Wilson’s language, becau ...
Condensed matter physics
Condensed matter physics is a branch of physics that deals with the physical properties of condensed phases of matter. Condensed matter physicists seek to understand the behavior of these phases by using physical laws. In particular, these include the laws of quantum mechanics, electromagnetism and statistical mechanics.The most familiar condensed phases are solids and liquids, while more exotic condensed phases include the superconducting phase exhibited by certain materials at low temperature, the ferromagnetic and antiferromagnetic phases of spins on atomic lattices, and the Bose–Einstein condensate found in cold atomic systems. The study of condensed matter physics involves measuring various material properties via experimental probes along with using techniques of theoretical physics to develop mathematical models that help in understanding physical behavior.The diversity of systems and phenomena available for study makes condensed matter physics the most active field of contemporary physics: one third of all American physicists identify themselves as condensed matter physicists, and the Division of Condensed Matter Physics is the largest division at the American Physical Society. The field overlaps with chemistry, materials science, and nanotechnology, and relates closely to atomic physics and biophysics. Theoretical condensed matter physics shares important concepts and techniques with theoretical particle and nuclear physics.A variety of topics in physics such as crystallography, metallurgy, elasticity, magnetism, etc., were treated as distinct areas, until the 1940s when they were grouped together as solid state physics. Around the 1960s, the study of physical properties of liquids was added to this list, forming the basis for the new, related specialty of condensed matter physics. According to physicist Phil Anderson, the term was coined by him and Volker Heine when they changed the name of their group at the Cavendish Laboratories, Cambridge from ""Solid state theory"" to ""Theory of Condensed Matter"" in 1967, as they felt it did not exclude their interests in the study of liquids, nuclear matter and so on. Although Anderson and Heine helped popularize the name ""condensed matter"", it had been present in Europe for some years, most prominently in the form of a journal published in English, French, and German by Springer-Verlag titled Physics of Condensed Matter, which was launched in 1963. The funding environment and Cold War politics of the 1960s and 1970s were also factors that lead some physicists to prefer the name ""condensed matter physics"", which emphasized the commonality of scientific problems encountered by physicists working on solids, liquids, plasmas, and other complex matter, over ""solid state physics"", which was often associated with the industrial applications of metals and semiconductors. The Bell Telephone Laboratories was one of the first institutes to conduct a research program in condensed matter physics.References to ""condensed"" state can be traced to earlier sources. For example, in the introduction to his 1947 ""Kinetic theory of liquids"" book, Yakov Frenkel proposed that ""The kinetic theory of liquids must accordingly be developed as a generalization and extension of the kinetic theory of solid bodies"". As a matter of fact, it would be more correct to unify them under the title of ""condensed bodies"".