21. A. C. M. De Queiroz Links A list of links for electrostatic machines, history of physics and electricity, high voltage devices, and electronics. http://www.coe.ufrj.br/~acmq/links.html

Some interesting links that I have found: Search Engines: Internet search AltaVista Altavista translations . Translates web pages Google . For searching the web and newsgroups. Vivissimo Cade? TodoBR Radix . Buscas no Brasil. Google Scholar . Scientific search. Electrostatic Machines: Electrostatic Machines that I have built, machines built by others, and extensive materials, with many pictures and full references, about most of the known types of electrostatic machines. Raios Artificiais ", na UFRJ em 2002. Science Hobbist page. Includes some items about electrostatic machines. Theater of Electricity , at the Museum of Science, Boston, USA. The first large Van de Graaff generator, built in the 1930's, is now there. Many good pictures and informations on-line. The Gemmary sells old scientific instruments and books. There is also an interesting forum on old instruments. PV Scientific Instruments sells electrostatic machines and other devices. Has also reprints of old books. Electropolis . A museum in France devoted to electricity. Musee Virtuel du Service Patrimoine Transylvania University Museum . Look for the quadruple Toepler-Holtz machine. There are also other machines and curious demonstration devices that work with static electricity. Museo per la Storia dell'Universita di Pavia . In Italy. Many electrostatic items. The Bakken Library and Museum . Several machines on display and interesting informations. Museo de Fisica Electrostatic Applications . Source for books about modern applications of electrostatics, and other informations.

22. Physics Tutoring: Electricity, Magnetism, And Optics (PHY 2220) Links Electric Fields. SLCC physics Tutoring Electric Fields Exploring Electric Electrical Circuits (DC). SLCC physics Tutoring Electrical Circuits (DC) http://www.slcc.edu/schools/hum_sci/physics/tutor/2220/links.html

- Select a Topic - Measurements Electrostatics Electric Fields Electric Flux Electric Potential Capacitance Current and Resistance Electrical Circuits (DC) Magnetism Sources of Magnetic Fields Magnetism in Matter Electromagnetic Induction Electrical Circuits (AC) Maxwell's Equations Electromagnetic Waves Reflection, Refraction, Polarization Optical Instruments: Mirrors and Lenses Interference Diffraction The Topics Navigator requires JavaScript 1.1 or higher. Please enable it or navigate using the Home page. Electricity, Magnetism, and Optics (PHY 2220) Links General Links SLCC: Physics Tutoring: Electricity, Magnetism, and Optics (PHY 2220) Home Page SLCC Physics Resources SLCC What Is Physics? Ask the Space Scientist: NASA ... Visual Physics If you want to refresh and practice your elementary/basic skills in algebra (trigonometry and calculus are in the development stages,) visit this Web Math site. Web Pages to Help Physics Students Wester's World: The MSMS Online Guide To Physics The World of Beams VRML Gallery of Electromagnetism Electrostatics SLCC: Physics Tutoring: Electrostatics LPT: Electric Forces MPS: Static Electricity P2K: The Electric Force Electric Fields SLCC: Physics Tutoring: Electric Fields Exploring Electric Fields LPT: Electric Fields P2K: Lines of Force ... VRML Gallery of Electromagnetism (by Rob Salgado) Electric Flux SLCC: Physics Tutoring: Electric Flux Electric Potential

23. BBC - GCSE Bitesize - Physics | Electricity And Magnetism | Index Index for physics electricity and magnetism Changing the current in a circuit, Changing the number of batteries, Changing the resistance, http://www.bbc.co.uk/schools/gcsebitesize/physics/electricity/index.shtml

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index WEDNESDAY 21st September 2005 Text only BBC Homepage Other Sites var jsversion = 1.0; var realInstalled = false; var wmpInstalled = false; var swpInstalled = false; var xmlHTTPEnabled = false; var xslEnabled = false; jsversion = 1.1; jsversion = 1.2; jsversion = 1.3; jsversion = 1.4; jsversion = 1.5; 'For IE detection... On Error Resume Next realInstalled = (IsObject(CreateObject("rmocx.RealPlayer G2 Control"))) wmpInstalled = (IsObject(CreateObject("MediaPlayer.MediaPlayer"))) swpInstalled = (IsObject(CreateObject("SWCtl.SWCtl"))) xmlHTTPEnabled = (IsObject(CreateObject("Msxml2.XMLHTTP"))) xslEnabled = (IsObject(CreateObject("Msxml2.DOMDocument"))) Site Guide Credits About the BBC Contact Us ... Help Like this page? Send it to a friend! Home physics electricity and magnetism Physics Biology Chemistry English Language English Literature French German Geography History ICT Maths Music PE Religious Studies Spanish Black Holes to Worm Holes: BBCi Space Post ideas and check out Science messages here.

24. Snap Crackle Jump An edible physics experiment with static electricity and Rice Crispies. http://www.madsci.org/experiments/archive/857359255.Ph.html

MadSci Network Edible/Inedible Experiments Archive Snap Crackle Jump Area of Science: Physics Meant for Grade K-3 (age 5-7). This experiment is edible. An adult should be present. Overview: Rice Krispies seem to jump and float from a table top to an overlying plate of glass or plexiglass rubbed with a wool sweater to generate a net negative charge. Equipment: - hand full of Rice Krispies - plate of plexiglass, foot X foot or so. - wooden blocks, ceramic cups, or something similar to balance the plate 1-3 inches above the table (table should be non-metallic). - wool sweater Safety: none that I can think of.. just have fun How to do the experiment: Place the rice krispies on the table surface. Put the wooden blocks or other non-conductive materials on the table, and balance the plate of plexiglass over the table + pile of rice krispies. Vigorously rub the top of the plexiglass with the wool sweater. The rice krispies should slowly start to stand on end, then 'jump' from the table surface to the plexiglass and back again. Explanation: The effect is caused by the buildup of static charge . Rubbing the wool sweater on the plexiglass generates a net negative charge on the plexiglass surface. This net negative charge has the effect of polarizing the rice krispies on the table below, so positive charges accumulate on points closest to the overlying negatively charged plate. Unlike charges attract, and when the difference in charge has become great enough, the electrostatic attractions are sufficient to draw the rice krispies to the bottom of the plexiglass plate, against the force of gravity. The charges dissipiate when the rice krispie contacts the plate. Having no further means of attration, the now neutral krispie falls back to the surface of the table allowing the process to start over again.

25. BBC - GCSE Bitesize - Physics | Electricity And Magnetism | Mains Electricity The mains electricity supply works at 230Volts ac This voltage means that an electric shock from the mains supply can be very dangerous, so we have to be http://www.bbc.co.uk/schools/gcsebitesize/physics/electricity/mainselectricityre

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index WEDNESDAY 21st September 2005 Text only BBC Homepage Other Sites var jsversion = 1.0; var realInstalled = false; var wmpInstalled = false; var swpInstalled = false; var xmlHTTPEnabled = false; var xslEnabled = false; jsversion = 1.1; jsversion = 1.2; jsversion = 1.3; jsversion = 1.4; jsversion = 1.5; 'For IE detection... On Error Resume Next realInstalled = (IsObject(CreateObject("rmocx.RealPlayer G2 Control"))) wmpInstalled = (IsObject(CreateObject("MediaPlayer.MediaPlayer"))) swpInstalled = (IsObject(CreateObject("SWCtl.SWCtl"))) xmlHTTPEnabled = (IsObject(CreateObject("Msxml2.XMLHTTP"))) xslEnabled = (IsObject(CreateObject("Msxml2.DOMDocument"))) Site Guide Credits About the BBC Contact Us ... Help Like this page? Send it to a friend! Home physics electricity and magnetism / Mains electricity Physics Biology Chemistry English Language English Literature French German Geography History ICT Maths Music PE Religious Studies Spanish Black Holes to Worm Holes: BBCi Space Post ideas and check out Science messages here.

26. Renewable Energy In Australia Home Page - Australian Greenhouse Office Discusses the physics, mechanics, and methods of generating electricity from tidal movements. http://renewable.greenhouse.gov.au/technologies/ocean/tidal.html

Skip Navigation Search Contacts About us ... Renewable energy More topics Select another topic Select another topic About the AGO Emissions monitoring Government International activities Natural resources HOME Renewable energy Government programmes In the home Industry contacts ... Energy Home Find out more Energy efficiency MRET Solar Cities Browse site A-Z ... AGO Home Top Renewable energy This site is published by the Australian Greenhouse Office to promote the use of renewable energy and develop the Australian renewable energy industry. Government programmes In the home Industry contacts Power supply ... Projects - AGO funded projects Mandatory Renewable Energy Target Windfarms and Landscape Values - Stage One Report, Identifying Issues Wind farms and landscape values investigated - Media release, 16 June 2005 Media contacts: ACNT: 02 6247-6766 - AusWEA: Ian Lloyd-Besson, President: 0438 010 471 Top About the AGO Contacts Search ... Privacy Australian Greenhouse Office, Department of the Environment and Heritage , GPO Box 787 Canberra ACT 2601 Australia Phone: +61 02 6274 1888 Last modified 02 August 2005

27. Wave-Guide: Glossary Containing EMF/EMR Terminology and celestial physics which existed before Newton s Principia; Grob, ©;1977 McGraw Hill, Inc.; Warning The electricity Around You May Be Hazardous http://www.wave-guide.org/library/glossary.html

Glossary A B C D ... W If you can't find it here, try Miriam Webster Absolute temperature scale Another name for the Kelvin Absolute zero The lowest possible temperature according to the kinetic theory; all molecular motions cease. Acceleration The change in instantaneous velocity divided by the time interval over which the change occurs. Acceptable risk The cost in human life is justified, given the economic benefit. Action and reaction, law of (Newton's third law) When A exerts a force on B, B will exert a force on A equal in magnitude but opposite in direction to the force which A exerts on B. Aether The medium hypothesized by nineteenth-century physicists for the propagation of light; relative to an observer at rest with respect to the aether, the speed of light was thought to be c = 3 x 10 m/sec. Alternating current (AC) An electrical current that changes its direction of flow with a certain periodicity. For example, 60-cycle AC is an electrical current that changes its direction of flow 60 times per second. Also loosely used as a synonym for any current or field that varies with time. Ampere (Amp, A)

28. Techtrans' Technical Dictionary Patent terminology. Agriculture, biology, chemistry, crystallography, communications, computing, electronics/electricity, maritime, mechanics, medicine, military, nuclear physics, optics, paper making, oil production, pharmacy, semiconductors, signal/speech processing, aerospace, textiles, printing, xerography. About 75 pages. http://www.techtrans.com.fr/Glossary.PDF

29. Telegraph An assortment of telegraph instrument images compiled from several early physics apparatus collections by Professor Thomas Greenslade Jr. of Kenyon College. http://physics.kenyon.edu/EarlyApparatus/Electricity/Telegraph/Telegraph.html

The Telegraph A. Needle Telegraphs The telegraph instrument shown below in front and back views is in the Museum at the University of Mississippi. This is a single-needle device (the needle is missing). I think that the horizontal dial controls a rheostat, allowing different currents to be sent down the connections to the receiving instrument. The separate transmitting and receiving single-needle instruments below are from Grinnell College. They are listed at $15.00 in the 1881 catalogue of James W. Queen of Philadelphia; this price included a battery. This transmitter-receiver pair is in the collection of Vanderbilt University. It was made by Ruhmkorff of Paris, and was purchased about 1875 when the first apparatus collection at Vanderbilt was assembled. The description of the apparatus is: The transmitter and receiver consist "of a brass ring of diameter about 21.7 cm covered by two plates of glass and enclosing a paper dial on which are printed the 26 letters of the alphabet. Also enclosed in each are a toothed wheel whose turning produces impulses in an electromagnet located in the indicator. By turning the first dial to the letter to be transmitted, the operator causes a corresponding number of impulses to actuate the electro- magnet an equal number of times and the dial accordingly stops at the desired point. A battery is located at the manipulator and the two instruments are connected by two wires." This is drawn from Robert T. Lagemann

30. The Physics Hypertextbook™: Electricity & Magnetism This is a page in The physics Hypertextbook™. It is a work in progress. http://hypertextbook.com/physics/electricity/

The Physics Hypertextbook Fair Use Encouraged prev up next Introduction Electrostatics Electric Charge Coulomb's Law Electric Field Electric Potential ... Gauss' Law Electrostatic Applications Conductors Capacitors Dielectrics Charge Quantization Electric Current Electric Current Electric Resistance Electric Power DC Circuits Batteries Resistors in Circuits Capacitors in Circuits Kirchoff's Rules Magnetostatics Magnetism Elecromagnetism Magnetic Force Ferromagnetism ... Geomagnetism Magnetodynamics Electromagnetic Induction Faraday's Law Lenz' Law Inductance AC Circuits Alternating Current RC Circuits RL Circuits LC Circuits Electromagnetic Waves Maxwell's Equations Electromagnetic Waves Electromagnetic Spectrum External Resources ... next Another quality webpage by Glenn Elert home contact bent chaos ... physics

31. California Energy Data Summary of data on the California Energy Crisis in electricity, natural gas, and gasoline. Many energy site links, including conservation sites. http://www.physics.uci.edu/~silverma/power.html

California Energy Data Dennis Silverman U C Irvine Physics and Astronomy U C Irvine School of Physical Sciences Most of the data has been culled from Los Angeles Times articles from 2001, and the California Energy Commission web sites. This page is mainly for energy supply and usage data and for conservation, but does not include the history or politics of the California energy crunch. The main guide to the physical use of power is to realize that it is a five step process: (1) mining the source fuel, (2) transporting the fuel to the power generating plant, (3) efficiently producing the electrical power, (4) distributing the power over power lines, (5) using the power efficiently, including conservation measures. Costs are incurred at each stage, which include the effects of possible bottlenecks. Peak Demand and Electrical Energy Sources The Energy Crisis Steps Toward a Solution Power Lines, Hydroelectric Power, Natural Gas, and Nuclear Power ... Direct e-mail to President Bush, Vice President Cheney, Governor Davis, Senators Feinstein and Boxer, Rep. Chris Cox, Senate Majority Leader Thomas Daschle, and Minority Leader Trent Lott Online News Coverage Los Angeles Times Coverage Orange County Register Coverage Orange County Now (OCNOW.com) Energy News Stories

32. The Physics Hypertextbook™: External Resources: Electricity & Magnetism This is a page in The physics Hypertextbook™. It is a work in progress. http://hypertextbook.com/physics/electricity/resources.shtml

The Physics Hypertextbook Fair Use Encouraged prev up next Electrostatics electric charge general Basics of Electrostatic Discharge (ESD), Midwest Chapter, Electrostatic Discharge Association The Discovery of the Electron , American Institute of Physics Other Electrostatics Websites Electrostatic Applications Life, the Universe and the Electron May Underpants Lead To Reproductive Problems ? HealthCentral Mike's Electric Stuff , Mike Harrison Theater of Electricity , Museum of Science, Boston "Static" Electricity Page , Bill Beaty Vehicle Refueling Fires , Petroleum Equipment Institute (PEI) benjamin franklin Experiments and Observations on Electricity , Commentary by I. Bernard Cohen, Octavo Editions high voltage Brent's (New) High Voltage Page Mike's Electric Stuff , Mike Harrison Resonance Research Steve's High Voltage Page Tandem Van de Graaff Accelerator Facility , Brookhaven National Laboratory, BNL's 16 million volt tandem Van de Graaff accelerator Tesla Coil Web Ring Tesla Systems Research Theater of Electricity , Museum of Science, Boston triboelectricity Crackling Planets: Astronauts on the Moon and Mars are going to have to cope with an uncommon amount of static electricity , Tony Phillips, Science@Nasa, 10 August 2005 Shock Value (how fabric softeners reduce static cling in clothes), Last Word, New Scientist

33. IB Notes -- Chemistry And Physics Revision Notes For The International Baccalaur Includes HL and SL mechanics, thermal physics, waves, electricity and magnetism, and atomic and nuclear physics. http://homepage.mac.com/stray/ib/

IB Notes Get them before they change the syllabus During the lead up to the May 1998 IB exams, several things came to my attention. The first, and perhaps most important was that I actually knew very little of the actual subject matter on which the actual 'affect the rest of my life' exams were based. The second thing was more mundane, being that if I didn't actually get on and learn some of it, bad marks would follow, and with them, the inevitable pain of lectures from parents. The third thing, probably the most interesting to you, was the realisation that the incentive of avoiding lectures from parents was not nearly sufficient to force me into studying. The result, however, of all of these combined, was that, instead of actually studying, I decided to sit around a make web pages about all the stuff I would have been studying if I could have been bothered. Buying something from Amazon? Clicking though these links supports this site with a cut of anything you buy today. That was my original introduction, and it still seems to hold up quite well. The notes have brought me acclaim from some, insults from others and hopefully some good karma. I'd also like to thank the other contributors who have helped, and still are helping to improve the quality of the notes, especially those I haven't got around to adding to the page. (

34. Physics Demonstrations, Science Fair Projects, Science Experiments BAD K6 physics Page Explaining electricity with colored plastic sheets. Collected electricity Articles Static Electric Bill B s Answers to Science http://www.amasci.com/scied.html

UP TO SCI. HOBBYIST AWARDS GOOD STUFF NEW STUFF ... SEARCH Google: Science Exhibit Designs Society for Amateur Science William J. Beaty, Seattle, WA This PIRA Webring site owned by Bill Beaty Join the PIRA Webring Previous Next ... Listservs, books, misc. document.write(""); BILL B'S SCIENCE EDUCATION ARTICLES BAD K-6 PHYSICS Page Explaining electricity with colored plastic sheets. Collected Electricity Articles "Static" Electric Bill B's Answers to Science Questions at 'Madsci' BILL B's Physics Demos Science Projects for kids, also see mail order parts sources NEODYMIUM magnet demonstration ideas, and more MAGLEV , a non-cryo Meissner-like device Ultra-simple Electric Generator Large Electrostatic Loudspeakers Van de Graaff Generator Page Adjustable voltage VandeGraaff Tornado Generator Box Plasma Globes , and Argon globes in open air Quick and simple telescope Seeing Sound (an untested idea) How airfoils REALLY work Electrostatics projects Human infrared vision $10 goggles 'Squealing wall' laser demo Traffic wave physics for Bored Commuters Ultra-simple Hovercraft Drawing holograms by hand Evil Genius hi-tech practical jokes ... Dangerous experiments with a big capacitor bank Antibubbles PIRA balloon demonstration suggestions Giant Rainbow Prism Smoke ring launchers (Vortex Cannons) Antigravity Chamber Gigantic low-cost solar furnace Acid/Base Goldenrod secret SEE magnetic fields with this simple viewing bottle TOUCH THE CLOUDS device Ridiculously sensitive charge detector BOOKS ON ELECTROSTATICS ELECTROSTATIC MOTOR made from plastic pop bottles.

35. Historical Beginnings Of Theories Of Electricity And Magnetism A lecture from professor Michael Fowler at U of Virginia. Long and detailed. http://galileoandeinstein.physics.virginia.edu/more_stuff/E&M_Hist.html

36. Guide For Applicants - Part 1How To Get A European Patent ANNEX of invention. MOSFET switch for an inductive load. Title of invention (designation in Request......electricity/physics example. Art. 78, 83; R. 27 http://www.european-patent-office.org/legal/guiapp1/e/ga_aiii_2.htm

Guide for Applicants - Part 1 How to get a European patent HOME E D F Homepage Guide for Applicants - Part 1 ... How to get a European patent ANNEX III Examples of European patent applications 1. Chemistry example 3. Mechanics example Electricity/physics example Art. 78 R. 27 Description of invention [MOSFET switch for an inductive load] Title of invention (designation in Request for Grant suffices) The present invention relates to a circuit arrangement having a power MOSFET and an inductive load that is connected, first, to the source terminal of the MOSFET and, second, to a terminal having a fixed potential, and a series circuit composed of a Zener diode and of a controllable switch connected between the gate terminal of the MOSFET and the terminal. R. 27(1)(a) Technical field to which invention relates Such a circuit arrangement has, for example, been disclosed by European Patent No. x xxx xxx. For an activated inductive load, deactivation of the inductive load is initiated by turning on the controllable switch. The latter discharges the gate-source capacitance of the power MOSFET that thus begins to turn off. The current through the inductive load initially continues to flow and builds up a voltage in a non-conducting direction at the Zener diode that can reach the Zener voltage. The driving voltage at the inductive load is therefore the Zener voltage plus the voltage drop across the controllable switch plus the gate-source voltage at the power FET. The driving voltage at the inductive load can therefore essentially be set on the basis of the selection of the Zener voltage. The magnetic energy is then quickly reduced for a high Zener voltage.

37. Untitled Document Demonstrations and videos from ISU. Includes demonstrations on mechanics, heat, light, and electricity and magnetism. http://learning.physics.iastate.edu/DemoRoom/Demos.htm

Demos Demos

38. Wireless Transmission Of Electricity - Physics Help And Math Help - Physics Foru physics Forums is a science and physics community. http://physicsforums.com/showthread.php?t=81291

39. PV Scientific Instruments' Online Catalog Working models of apparatus used in great discoveries in electricity, magnetism and atomic physics. http://www.arcsandsparks.com/

42 King St. Trumansburg, NY 14886 USA is a repository of scientific instruments, information, and technological services relating to the early history of electricity, magnetism, and atomic physics. We offer custom made right here in our laboratory in Trumansburg, New York. ur reproductions of classical electrostatic and electromagnetic devices include Wimshurst machines Leyden jars induction coils Crookes tubes ... crystal radio sets and regenerative radios ach instrument is sturdily constructed on the basic principles of its original period model to fulfill the intention of the original experimenter. To ensure the finest working instruments with the look of the originals, we use antique parts from our extensive collection along with new parts fabricated from the finest materials. radio kits that contain original antique parts and the best classical circuits. e also offer a comprehensive selection of reprints of classical masterworks on topics related to the construction and use of early electrical devices, reprints of contemporary papers on the work of Nikola Tesla , and used and rare books of interest to electrical engineers and experimenters, physicists and students of physics, and amateur astronomers.

40. Physics 8.02 - Electricity & Magnetism MIT physics 8.02 - electricity Magnetism, { as long as an acknowledgment is given to the MIT TEAL/Studio physics Project for such use. http://evangelion.mit.edu/802TEAL3D/

Guided Tour Vector Fields Electrostatics Magnetostatics ... About TEAL/Studio Supported by the d'Arbeloff Fund for Excellence in MIT Education, the MIT/Microsoft iCampus Alliance, and NSF. The content contained herein can be freely used and redistributed for non-profit educational purposes, as long as an acknowledgment is given to the MIT TEAL/Studio Physics Project for such use. See the latest versions of these materials at: http://evangelion.mit.edu/802TEAL3D

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 2     21-40 of 121    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | Next 20