Physics of Superheroes, The
... weights on pulleys, or oscillating masses on springs. These situations seem so artificial that students inevitably lament, “When am I ever going to use this stuff in my real life?” One trick I’ve hit upon in teaching physics involves using examples culled from superhero comic books that correctly il ...
... weights on pulleys, or oscillating masses on springs. These situations seem so artificial that students inevitably lament, “When am I ever going to use this stuff in my real life?” One trick I’ve hit upon in teaching physics involves using examples culled from superhero comic books that correctly il ...
“The Language of the Permanent Magnet Industry”
... Often the air gap is just air, but may also include other materials such as paint, aluminum, epoxy etc. Alnico Magnets - Developed in the 1930s. Alnico magnets are an iron-based alloy system and named from their main alloying elements – aluminum, nickel and cobalt. Alnico magnets have the widest ran ...
... Often the air gap is just air, but may also include other materials such as paint, aluminum, epoxy etc. Alnico Magnets - Developed in the 1930s. Alnico magnets are an iron-based alloy system and named from their main alloying elements – aluminum, nickel and cobalt. Alnico magnets have the widest ran ...
Quantum electrodynamics of strong fields?
... atomic phenomena which have been obtained since 1968, essentially by two schools in Frankfurt and in Moscow. After some general considerations we introduce a model which treats the decay of the neutral vacuum as an autoionization process of positrons. Section 2.3 quantitatively justifies this pictur ...
... atomic phenomena which have been obtained since 1968, essentially by two schools in Frankfurt and in Moscow. After some general considerations we introduce a model which treats the decay of the neutral vacuum as an autoionization process of positrons. Section 2.3 quantitatively justifies this pictur ...
24 .Magnetic Fields - mrphysicsportal.net
... 5. A long, straight, current-carrying wire runs from north to south. a. A compass needle is placed above the wire points with its N-pole toward the east. In what direction is the current flowing? b. If a compass is put underneath the wire, in which direction will the needle point? 6. Suppose you mea ...
... 5. A long, straight, current-carrying wire runs from north to south. a. A compass needle is placed above the wire points with its N-pole toward the east. In what direction is the current flowing? b. If a compass is put underneath the wire, in which direction will the needle point? 6. Suppose you mea ...
Exercises in Statistical Mechanics ====== [Exercise 0010
... Partition function for AB and AA molecules A diatomic molecule AB can be regrded as two atoms that are connected by a spring of length r0 , and vibration frequency ω0 . The total angular momentum is ` = 0, 1, 2, .... The masses of the atoms are mA and mB , and they have spins SA and SB . (a) Explian ...
... Partition function for AB and AA molecules A diatomic molecule AB can be regrded as two atoms that are connected by a spring of length r0 , and vibration frequency ω0 . The total angular momentum is ` = 0, 1, 2, .... The masses of the atoms are mA and mB , and they have spins SA and SB . (a) Explian ...
Ultrahigh magnetic fields produced in a gas .. puff Z pinch
... and the probes survive from shot-to-shot, then the only limitation on the repetition rate of diagnosed experiments is the repetition rate ofthe Z pinch device. The repetition period of our megagauss facility was < 3 min, and could have easily been reduced, if desired. Even the repetition period of m ...
... and the probes survive from shot-to-shot, then the only limitation on the repetition rate of diagnosed experiments is the repetition rate ofthe Z pinch device. The repetition period of our megagauss facility was < 3 min, and could have easily been reduced, if desired. Even the repetition period of m ...
what sets the initial rotation rates of massive stars?
... disk the resulting rotation rates, while still below breakup, are higher than those of the slowest rotators. Magnetic fields have been detected in a small sample of young and evolved OB stars. These fields are between a few hundred G to several kG and typically have a bipolar topology (Donati et al. ...
... disk the resulting rotation rates, while still below breakup, are higher than those of the slowest rotators. Magnetic fields have been detected in a small sample of young and evolved OB stars. These fields are between a few hundred G to several kG and typically have a bipolar topology (Donati et al. ...
Magnetic vortex as a ground state for micron
... (magnetic dots) are attracting considerable attention mainly due to their potential applications (see, e.g., Ref. 1). Circular dots possess an equilibrium magnetic configuration which corresponds to a vortex structure just above the single domain length scale, with radius R > Rcrit ∼ 100–200 nm. The ...
... (magnetic dots) are attracting considerable attention mainly due to their potential applications (see, e.g., Ref. 1). Circular dots possess an equilibrium magnetic configuration which corresponds to a vortex structure just above the single domain length scale, with radius R > Rcrit ∼ 100–200 nm. The ...
Small Dimensions and Material Properties A Definition of
... seems that “Nanotechnology” has become a synonym for all things which are innovative and highly-promising. This boom, however, shows some risks. First of all, the inflated use of the term might contribute to hide the most interesting ongoing scientific activities in this field among a lot of others ...
... seems that “Nanotechnology” has become a synonym for all things which are innovative and highly-promising. This boom, however, shows some risks. First of all, the inflated use of the term might contribute to hide the most interesting ongoing scientific activities in this field among a lot of others ...
Ch 24 Solutions Glencoe 2013
... 8. You have a battery, a spool of wire, a glass rod, an iron rod, and an aluminum rod. Which rod could you use to make an electromagnet that can pick up steel objects? Explain. SOLUTION: Use the iron rod. Iron would be attracted to a permanent magnet and take on properties of a magnet, whereas alu ...
... 8. You have a battery, a spool of wire, a glass rod, an iron rod, and an aluminum rod. Which rod could you use to make an electromagnet that can pick up steel objects? Explain. SOLUTION: Use the iron rod. Iron would be attracted to a permanent magnet and take on properties of a magnet, whereas alu ...
Cellular materials made of stacked tubes : influence of the
... In order to discuss the influence of the manufacturing process of tube stackings on the mechanical properties of their constitutive material an Inconel 600® here, it has been proposed to perform uniaxial tensile tests at various strain rates on tubular specimens for the three different material conf ...
... In order to discuss the influence of the manufacturing process of tube stackings on the mechanical properties of their constitutive material an Inconel 600® here, it has been proposed to perform uniaxial tensile tests at various strain rates on tubular specimens for the three different material conf ...
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"".