A different approach to the theory of electromagnetic and gravitational fields, 2nd edition. I have always been fascinated by electrostatic phenomena, my father. It is related to the physically observable property of the electron density ed via poissons equation coppens, 1997. In this paper, the causality of the maxwell equations is explored and explained, and new causal equations formulated, according to jefimenkos important work in. Electromotive force emf, denoted and measured in volts, is the electrical action produced by a nonelectrical source. Chapter 25 current, resistance and electromotive force.
A different approach to the theory of electromagnetic and gravitational fields, 2nd ed. The heart of the motor is the electreta body with a permanent positive charge at one end or one. How does electromotive force emf influence electrostatic. The electrostatic component of this motor is my attempt to meld two technologies together. Lenz, a small gap electrostatic micro actuator for large deflections, nature communications 6 2015, 10078. The complete motor consists of a carnauba wax electret, several pieces of plastic and aluminum, two mica disks, two thin wires, an axle, and two jewel bearings.
The book shows the type of electrostatic motor that was first invented by ben. Jefimenko author of electromagnetic retardation and. Jefimenkos 21 research works with 226 citations and 1912 reads, including. Sep 12, 2008 author of gravitation and cogravitation, causality, electromagnetic induction, and gravitation, electricity and magnetism, how to entertain with your pocket calculator, electrostatic motors, 30 music programs for timex sinclair 2068, scientific graphics with lotus 123, electrostatic motors. Operation of electric motors from the atmospheric electric field. The algebraic sum of the changes in potential encountered in a complete traversal of any loop of a circui t must be zero. A device that converts other forms of energy into electrical energy a transducer, such as a battery converting chemical energy or generator converting mechanical energy, provides an emf as its output. Jun 02, 2015 book chapters by professor oleg jefimenko what is the physical nature of electric and magnetic forces. Electrostatic charges are created by what 2753041 the phenomenon of static electricity requires a separation of positive and negative charges. Electromagnetic retardation and theory of relativity. Its is the potential difference between two terminals of the battery when no current is drawn from it.
Apart from possible applications electrostatic motors make fascinating playthings. An engineering guide to ac and dc motor designs and operation. Therefore they can be used for moving charges and currents. Highlights an electrostatic induction motor utilizing electrical resonance is proposed. An electrostatic induction motor utilizing electrical resonance to enhance its torque is introduced in this paper. In his opinion, there is no objective reason for abandoning newtons forcefield gravitational theory in favor of a metric gravitational theory.
The traditional multipole expansion of the electromagnetic field in cartesian coordinates is exposed in electrodynamics textbooks, as the wellknown refs. The motor has patterned electrodes embedded on both of its stator and rotor, and driven by threephase excitation voltage applied to its stator electrodes. Household blenders that advertise many speeds frequently combine a field coil with several. Problems arise because changes in charge distributions require a nonzero amount of time to be felt elsewhere required by special relativity. Regarding simply the electrostatic energy storage capacity of the ionosphere, dr. They are based on the physics of the fairweather atmosphere that has an abundance of positive electric charges up to an altitude of 20 km. However, none of them was practical enough to be used. Even if it is said as a new electrostatic generator, the basic principle of the generation is the same as the former electrostatic generator. These resistors are then connected to a battery v as shown. Their history, types and principles of operation by oleg jefimenko perfect.
Threephase excitation voltage is applied to stator electrodes. Electro static motors oleg jefimenko electric motor. Pages in category electrostatic motors the following 6 pages are in this category, out of 6 total. Oleg jefimenko electrostatic motors full book 75p download as pdf file. Ac generators and electric motors ddt time variation of the magnetic eld through a static loop 5. Torque is maximized when the slip frequency is equal to the resonance frequency. About a yard away electrotatic placed a sharppointed corona antenna and connected it to an electrostatic motor. Physics 231 lecture 512 fall 2008 example two cylindrical resistors, r1 and r2, are made of identical material.
The group has reconstructed models of franklins motors and developed advanced electrostatic machines of other types. Where are all the expected orbiting black hole merger ligo events. Book is the summary of the history of the electrostatic motors with timeline extending to 1970. If the field is instead produced by a continuous distribution of charges, the. Electrostatic motors pdf copy of the outofprint classic. The magnitude of charge depends on many interrelated factors, including the environment. Francis author, oleg jefimenko editor electret scientific, 2005, 273 pages electromagnetic retardation and theory of relativity new chapters in the classical theory of fields, 2nd edition, electret scientific, 2004, 338 pages corrections. A different approach to the theory of electromagnetic and. Jan 29, 20 emf electro motive force is not a force the name has always been misleading. The most authoritative and comprehensive book on the subject of using high voltage electric charge to power a motor.
Jefimenkos equations and lienard wiechert potentials as simple and satisfying as coulombs equation may be, it is not entirely correct in the context of classical electromagnetism. Ac and dc motor designs and operations are explained in this article. An introduction to the theory of electric and magnetic fields 2 by jefimenko, oleg d. Integration of electrostatic and fluid dynamics within a dust devil w. They have been studied extensively in recent years by oleg d.
This is a musthave book for anyone interested in the subject, written by mr. Author of gravitation and cogravitation, causality, electromagnetic induction, and gravitation, electricity and magnetism, how to entertain with your pocket calculator, electrostatic motors, 30 music programs for timex sinclair 2068, scientific graphics with lotus 123, electrostatic motors. I have been trying to understand the derivation of jefimenkos equation in jackson on p. Jefimenkostyle sky antenna kitelifted or balloonlifted wire with needles at top or, with some practice, even with a balloon and a piece of fur can sometimes work. This motor is of the electret electrostatic type and its design is extremely simple. Namely, the generator picks up charges into a charge carrier at a. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Back in the 18th and 19th centuries, benjamin franklin and others shown the principle and actually built motors using electrostatic forces. Jefimenko and his graduate students at west virginia university. The only true existing field strength in electrodynamics is the magnetic field strength which has a curving action or an angle effect on paths of charged bodies. Oleg jefimenko, author of electrostatic motors, explains that during one electric storm, the atmospheric electric field dissipates at least 0. Jefimenko worked on the generalization of newtons gravitational theory to timedependent systems. Jefimenko causality, electromagnetic induction, and gravitation. My hopes are to gain additional torquespeed for the motor by ionic induction with little to no additional input energy.
An electric motor is an electrical machine that converts electrical energy into mechanical energy. Jefimenko give the electric field and magnetic field due to a distribution of electric charges and electric current in space, that takes into account the propagation delay retarded time of the fields due to the finite speed of light and relativistic effects. The electrostatic potential vr esp is one of the most important properties in the study of molecular reactivity and the analysis of molecular bonding and packing in crystals. Everyday low prices and free delivery on eligible orders. What is the difference between electromotive force and. V i 1 i 2 what is the relation between i1, the current flowing in r1, and i2, the current flowing in r2. R2 has twice the length of r1 but half the radius of r1. An electrostatic induction motor utilizing electrical. Integration of electrostatic and fluid dynamics within a dust.
We not only talk about different type of motors but we also see how different motors work under different conditions. Full text of electricity and magnetism internet archive. Engineering read an article that they are now making progress in practical application of electrostatic motors and wondered, how and why it would have any advantages. Jefimenkos research works west virginia university, wv. Jefimenko s expansion, or generalization, is based on the existence of the second gravitational force field, the cogravitationalor heavisides field. Jefimenko is the author of gravitation and cogravitation 4. Great book, has the dirod generator construction project. Oleg dmitrovich jefimenko was a physicist and professor emeritus at west virginia university. Physics 231 lecture 51 fall 2008 current, resistance, and electromotive force. Does special relativity prohibit superluminal velocities. The electromotive force emf of a source of electric potential energy is defined as the amount of electric energy per coulomb of positive charge as the cha rge passes. Later, when hooked up to circuit the electrostatic force smoothed the charge and current out to avoid charge build ups unless there is a capacitor in the circuit, and so it wasnt fighting the magnetic force so the magnetic force can apply a force on the charges, the hand pulling the conducting rod can provide the energy and current can flow.
Jefimenko is a pro fessor of physics, emeritus, at west virginia university. Jefimenko constructed and operated electrostatic generators run by atmospheric electricity. Sep 11, 2014 back in the 18th and 19th centuries, benjamin franklin and others shown the principle and actually built motors using electrostatic forces. Rotor electrodes are connected to external inductors through slip rings. Charges can occur during filtration of hydraulic and. Electromechanical systemselectromechanical systems tth 12. If youre interested in joining this mailing list, email steve roys, at. Developing newtons theory of gravitation to its physical and mathematical conclusion, oleg d. They were better accounted for by an infinite static universe.
A novel electrostatic actuator class sciencedirect. In on the electrodynamics of moving bodies the factual analysis of the article is shown exactly where and how the erroneous claim the speed of light is the same in all inertial frames of. Namely, the generator picks up charges into a charge carrier at a low electric potential place and. Williams, assistant professor electrical and computer engineering u i it f al b i h t illuniversity of alabama in huntsville 406 optics building, huntsville, al 35899 phone. Jefimenko, causality, electromagnetic induction, and gravitation. Discovered by ben franklin in the 18th century, electrostatic motors are an allamerican invention. The clock requires manual starting by a small knob on the back, while the older hammond. Direct current glow discharges in atmospheric air jan 2002. Moreover, we also discuss about various factors that affect working of these motors and reliable ways to improve. An encyclopedia of early electrostatic experiments, demonstrations, devices, and apparatus, by g.
This article will serve as a comprehensive guide for articles related to ac and dc motors. Jefimenko style sky antenna kitelifted or balloonlifted wire with needles at top or, with some practice, even with a balloon and a piece of fur can sometimes work. Batteries wont work, you need high voltage one of these motors is featured in the electricity exhibit at the museum of science in boston, powered. Classical electromagnetism brainmaster technologies inc. In electromagnetism, jefimenkos equations named after oleg d. Comparison with the classical electromotors is biased in favor of the electrostatic motors. Dec 20, 2019 book is the summary of the history of the electrostatic motors with timeline extending to 1970. Electromagnetism lecture 6 induction faradays law of induction electromotive force di erential form of faradays law examples of induction timevarying fields. Book chapters by professor oleg jefimenko what is the physical nature of electric and magnetic forces. Electrostatic m o t o r s it is also interesting to note that certain types of electrostatic motors were frequently. You can study the work of oleg jefimenko to learn about his atmospheric motors that he developed by searching through the internet. Integration of electrostatic and fluid dynamics within a. Two causal equations expressing timedependent electric and magnetic.
A new electrostatic generator that is driven by asymmetric. A the positive atmospheric electricity seeks to combine with the negative charge to. Fischbachnazario, coronatype electrostatic motors, proc. Electrostatic charge generation occurs in fluid systems as a result of friction between the fluid and system components. When two materials are in contact, electrons may move from one material to the other, which leaves an excess of positive charge on one material, and an equal negative charge on the other. Book chapters by oleg jefimenko electret scientific. Numerical data on electrostatic motors performance is nearly absent. Bedinicole window motor with a jefimenko electrostatic. Electro static motors oleg jefimenko free download as pdf file. First of all i did not fully comprehend the transformation between the two square bracket notations one with the.
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