Wireless energy transfer The most common form of wireless power transmission is carried out using direct induction followed by resonant magnetic induction. Other methods under consideration are electromagnetic radiation in the form of microwaves or lasers and electrical conduction through natural media. Electric energy transfer An electric current flowing through a conductor, such as a wire, carries electrical energy. In a direct current circuit, if the current is continuous, the fields are constant; there is a condition of stress in the space surrounding the conductor, which represents stored electric and magnetic energy, just as a compressed spring or a moving mass represents stored energy. Any change in the electrical conditions of the circuit, whether internal or external involves a readjustment of the stored magnetic and electric field energy of the circuit, that is, a so-called transient. Electromagnetic induction Electrodynamic induction method Electromagnetic radiation
Static electricity Contact with the slide has left this child's hair positively charged so that the individual hairs repel one another. The hair can also be attracted to the negatively charged slide surface. Static electricity is an imbalance of electric charges within or on the surface of a material. Causes of static electricity Materials are made of atoms that are normally electrically neutral because they contain equal numbers of positive charges (protons in their nuclei) and negative charges (electrons in "shells" surrounding the nucleus). Contact-induced charge separation Pressure-induced charge separation Applied mechanical stress generates a separation of charge in certain types of crystals and ceramics molecules. Heat-induced charge separation Heating generates a separation of charge in the atoms or molecules of certain materials. Charge-induced charge separation A charged object brought close to an electrically neutral object causes a separation of charge within the neutral object. Static discharge
Nikola Tesla: el rayo de la muerte, HAARP y la energía libre e ilimitada Nunca ha sido más cierto decir que algunas personas tienen una chispa especial, un Funkelin, que en el caso de Nikola Tesla. Pareciera que Tesla nació con una conexion inalámbrica al internet cósmico, al akasha del hinduismo, la biblioteca de información del universo. Un hombre que literalmente iluminó el planeta. El ingeniero eléctrico serbio Nicola Tesla vio por primera vez la luz a la medianoche del 10 de julio de 1854, durante una tormenta eléctrica en el pueblo montañez de Smilijan, en lo que ahora es Croacia. Tesla llegó a los Estados Unidos en 1884 con solo 4 centavos en su bolsa, algunos de sus poemas y unas ilustraciones de sus diseños de máquinas voladoras. Empezó a trabajar rápidamente con Tomas Alva Edison, a quien la historia ha preferido como el padre de la electricidad, quien tiempo después embaucó a Tesla. “My wireless transmitter does not use Hertzian waves, which are a grievous myth, but sound waves in the aether”. El Duma (Parlamento ruso) hizo un reporte donde se dice:
Tesla turbine Tesla turbine The Tesla turbine is a bladeless centripetal flow turbine patented by Nikola Tesla in 1913. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional turbine. Description View of Tesla turbine "bladeless" design Tesla wrote, "This turbine is an efficient self-starting prime mover which may be operated as a steam or mixed fluid turbine at will, without changes in construction and is on this account very convenient. This turbine can also be successfully applied to condensing plants operating with high vacuum. All the plates and washers are fitted on and keyed to a sleeve threaded at the ends and equipped with nuts and collars for drawing the thick end-plates together or, if desired, the collars may be simply forced onto it and the ends upset. View of Tesla turbine system As diagrammed, a Tesla turbine installation is: An efficient Tesla turbine requires close spacing of the disks. Tesla
Van de Graaff generator A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate very high amounts of electrical potential on a hollow metal globe on the top of the stand. It was invented by American physicist Robert J. Van de Graaff in 1929. The potential difference achieved in modern Van de Graaff generators can reach 5 megavolts. A Van de Graaff generator operates by transferring electric charge from a moving belt to a terminal. Description Schematic view of a classical Van de Graaff-generator. 1) hollow metal sphere 2) upper electrode 3) upper roller (for example an acrylic glass) 4) side of the belt with positive charges 5) opposite side of the belt with negative charges 6) lower roller (metal) 7) lower electrode (ground) 8) spherical device with negative charges, used to discharge the main sphere 9) spark produced by the difference of potentials Another method for building Van de Graaff generators is to use the triboelectric effect. History Patents
Típico test de Rorschach Plasma globe A plasma globe with filaments extending from the inner sphere to the outer. Description The effect of a conducting object (such as a hand) in close proximity with the plasma globe glass Some globes have a control knob that varies the amount of power going to the center electrode. Placing a finger tip on the glass creates an attractive spot for the energy to flow, because the conductive human body (having non-ohmic resistance of about 1000 ohms at room temperature) is more easily polarized than the dielectric material around the electrode (i.e. the gas within the globe) providing an alternative discharge path having less resistance. Much of the movement of the filaments is due to heating of the gas around the filament. An electric current is produced within any conductive object near the orb. The globe is prepared by pumping out as much air as is practical. The neon available for purchase for a neon-sign shop often comes in glass flasks at the pressure of a partial vacuum. In U.S.
Electrostatic generator An electrostatic generator, or electrostatic machine, is an electromechanical generator that produces static electricity, or electricity at high voltage and low continuous current. The knowledge of static electricity dates back to the earliest civilizations, but for millennia it remained merely an interesting and mystifying phenomenon, without a theory to explain its behavior and often confused with magnetism. By the end of the 17th Century, researchers had developed practical means of generating electricity by friction, but the development of electrostatic machines did not begin in earnest until the 18th century, when they became fundamental instruments in the studies about the new science of electricity. Electrostatic generators operate by using manual (or other) power to transform mechanical work into electric energy. Description Electrostatic machines are typically used in science classrooms to safely demonstrate electrical forces and high voltage phenomena. History
Nikola Tesla: The Genius Who Lit the World This is the documentary film about Nikola Tesla, the scientist and inventor, one of the greatest men in history. Nikola Tesla was born on July 10,1856 in Smiljan, Lika in what later became Yugoslavia. His father, Milutin Tesla was a Serbian orthodox priest and his mother Djuka Mandic was an inventor in her own right of household appliances. Tesla studied at the Polytechnic Institute in Graz, Austria and the University of Prague. Before going to America, Tesla joined Continental Edison Company in Paris where he designed dynamos. Young Nikola Tesla came to the United States in 1884. Direct current flows continuously in one direction; alternating current changes direction 50 or 60 times per second, and can be stepped up to very high voltage levels, minimizing power loss across great distances. Tesla's A-C induction motor is widely used throughout the world in industry and household appliances. Watch the full documentary now
Wimshurst machine The Wimshurst influence machine is an electrostatic generator, a machine for generating high voltages developed between 1880 and 1883 by British inventor James Wimshurst (1832–1903). It has a distinctive appearance with two large contra-rotating discs mounted in a vertical plane, two crossed bars with metallic brushes, and a spark gap formed by two metal spheres. Description These machines belong to a class of electrostatic generators called influence machines, which separate electric charges through electrostatic induction, or influence, not depending on friction for their operation. Earlier machines in this class were developed by Wilhelm Holtz (1865 and 1867), August Toepler (1865), J. Robert Voss (1880), and others. In a Wimshurst machine, the two insulated discs and their metal sectors rotate in opposite directions passing the crossed metal neutralizer bars and their brushes. Operation Animation See also References "History of Electrostatic Generators".