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/Home/Sciences/Physical Science/Physics/Electricity IEEE - IEEE History Center Votes:0 The world's leading professional association for the advancement of technology Shop | Join | myIEEE | Contact Us | Sitemap | IEEE Xplore IEEE (Google) IEEE (Ultraseek) Text size » A A A IEEE History Center » History Center Home » Mission » Search the History Center » About the History Center » History » Staff » Programs/Projects » Organization » Where We Are » Web Site Awards » Support the History Center » Bits & Bytes » FAQS » Question of the Month » eGallery » Archival Resources » Finding Aides for Collections » Photographs » Preserving Records & Artifacts » Donating Materials » Events » Conferences & Workshops » Speakers » Related Sites Historical Resources » Biographies » Oral Histories » Milestones Program » Bibliography » Newsletters » Historical Articles » Lines and Waves » Exhibits Read More Go to Site Chapter 23, Charge and Electric Fields Votes:0 Next: Charge Up: No Title Previous: Densities Chapter 23, Charge and Electric Fields Charge Insulators Conductors Charging Polarization Electric Field Lines of Force Point Charge Particle Motion Ross Spencer Tue Apr 8 10:33:28 MDT 1997 Read More Go to Site "Static" Electricity Page Votes:0 ELECTR ARTICLES UP SURPLUS JUNK GOOD STUFF NEW STUFF SEARCH Web amasci.com ELECTRONIC SURPLUS CATALOGS The Big List STUPID BILL B. VIDEOS ! DIY GENERATOR BOTTLE SMASH! GRAVITY BOX! cold. black. POPSICLE. EATING dry ice! DANGEROUS MAGLEV! " Static Electricity" Page W. Beaty STATIC ELECTRICITY ARTICLES BY BILL B. STATIC BUILD-IT PROJECTS ELECTROSTATICS LINKS Electronics junk , cool mail-order catalogs VandeGraaff Generators and their suppliers All electricity projects here Highly recommended: ELECTROSTATICS by A. D. Moore (lots of projects) , also others High Voltage Ring [ Previous | Previous 5 Sites | Next 5 Sites | Next ] [ Random Site | List Sites ] | [ High Voltage Ring ] LOOKING FOR BOOKS? Try searching amazon.com : (try "science fair" too) ALSO SEE: electrostatics book list Help Suppo Read More Go to Site 12/8/93 - How does electricity work? Votes:0 How does electricity work? (Lansing State Journal, December 08,1993) Electricity or electrical energy, is produced at a power plant. Different types of plants generate electricity in different ways. Oil, coal, and natural gas fuel most power plants. These fuels are burned, and the heat given is used to boil water. When water boils, the high pressure steam produced can physically propel electrical generators. These generators are simply large magnets that spin with respect to coils of metal wire. Electricity and magnetism are related physical phenomena, so these moving magnets actually causes electricity to flow in the wires. Now, electricity is actually moving electrons. (Electrons are the negatively charged particles that surround every atom). The electrons can actually flow from atom to Read More Go to Site A History of Electricity Votes:0 A Brief History of Electricity By Redwood Kardon Picture animations by Paddy Morrissey Any history of electricity is a history of humans discovering and harnessing an essential force in nature–electromagnetism. Lightning is hard to ignore. It is an awe inspiring display of electricity almost universally manifested across the earth. It is a common experience to almost every human who has ever lived. Pre-historic depictions of it testify to how lightning has asserted itself into human consciousness for eons. Magnetism is not so obvious. The first evidence of human interaction with magnetic fields goes back about 2200 years. A precursor to the magnetic compass was utilized by Chinese fortune tellers as early as 200 BC. Let's take a brief stroll through the main gallery of electromagnetic Read More Go to Site A Lightning Primer from the GHCC Votes:0 A Lightning Primer Page 2 Introduction L ightning, the thunderbolt from mythology, has long been feared as an atmospheric flash of supernatural origins: the great weapon of the gods. The Greeks both marveled and feared lightning as it was hurled by Zeus. For the Vikings, lightning was produced by Thor as his hammer struck an anvil while riding his chariot across the clouds. In the East, early statues of Buddha show him carrying a thunderbolt with arrows at each end. Indian tribes in North America believed that lightning was due to the flashing feathers of a mystical bird whose flapping wings produced the sound of thunder. T oday, scientific rather than mystical techniques are used to explain lightning with experimental procedures replacing intuitive concepts. Yet, we remain in awe of light Read More Go to Site analog circuit — Infoplease.com Votes:0 Site Map | FAQ in All Infoplease Almanacs • General • Entertainment • Sports Biographies Dictionary Encyclopedia Spelling Checker Daily Almanac for Nov 23, 2007 Search White Pages Skip Navigation Home Almanacs Atlas Encyclopedia Dictionary Thesaurus Features Quizzes Timelines Countries American Indian Heritage Month World & News United States History & Gov't Biography Sports Arts & Ent. Business Society & Culture Health & Science Homework Center Fact Monster Kid's reference, games, quizzes Daily Almanac This Day in History Today's Birthday Word of the Day Editor's Favorites American Indian Heritage Month Thanksgiving Advent Hanukkah Pearl Harbor Day Campaign 2008 Pakistan Country Profile Iraq Timeline Presidential Factfile NFL Team Profiles Daylight Saving Time 2007 Current Read More Go to Site Archived: Hair Raising Results Votes:0 A r c h i v e d I n f o r m a t i o n HAIR-RAISING RESULTS Have you ever been shocked when you walked across a rug or touched a light switch? Wait until a cool, dry day to learn about static electricity. What you'll need A cool, dry day 2 round balloons (inflated and tied) 2 20-inch pieces of string 1 wool or acrylic sock. 1 mirror (or more) 1 friend (or more) Your science journal What to do Tie a string to each inflated balloon. Rub a balloon on your hair for about 15 seconds. Be sure to rub around the whole balloon. What happens to your hair? What happens when you bring the balloon back close to your hair? Rub the balloon on your hair again and have a friend (or parent) do the same with the other balloon. Each of you hold the string to 1 balloon, letting the balloons hang freely, but wit Read More Go to Site Articles on "Electricity" Votes:0 SCIENCE HOBBYIST GOOD STUFF NEW STUFF SEARCH Google: ELECTRONIC SURPLUS CATALOGS The Big List ARTICLES ABOUT "ELECTRICITY" New Explanations, Alternate Mental Toolkit William J. Beaty Electrical Engineer, U. of Washington Jump down to Build-it Projects . What's the relation between Watts, Ohms, Amps, and Volts? Memorizing facts? That's not learning. Tie it all together instead. Ohm's law and electrical energy. What Is "Electricity?" There is a simple answer to this question. Really. Not the one you expect, though. Electricity: Frequently-asked Questions (FAQ) Browse these Electricity Answers, or submit a new question. How transistors REALLY work Problems with traditional transistor explanations... Explaining "electricity" visually A simple classroom activity using red and green plastic shee Read More Go to Site BA Hons, Primary Education Votes:0 Introduction To Electricity Author: Clive Buckley School of Education and Humanities Athrofa Addysg Uwch Gogledd Ddwyrain Cymru North East Wales Institute of Higher Education Wrexham, NORTH WALES These notes are designed for first year BA (Hons) Primary Education students at the North East Wales Institute, Wrexham. To understand something of electricity it is necessary to understand something about the structure of materials, in particular atomic structure. All matter is composed of very small particles called atoms . Although atoms are very small (with diameters of about 10 -10 m) they themselves are composed of sub-atomic particles. The three sub-atomic particles that concern us are the proton, the neutron and the electron. Both protons and neutrons reside in the nucleus (or the centre) Read More Go to Site Beakman's Electric Motor Votes:0 Beakman's Electric Motor Figure: Motor1.gif I saw this on the TV show Beakman's World and I was very impressed that you could actually build a working electric motor with so few parts. I built one and brought it to work where it was a big hit with all the engineers around here. This writeup was for a friend of mine who wanted instructions that his son could follow for a science fair project. So, if you missed the show, here's how to build one. If you are using a text only browser, you can click on the "Figure" links to download the drawing s (GIF files). BTW, my friend's son won second place in the school's science fair. Visit my blog for more cool stuff! Visit my other blog for totally bizarre stuff! BTW, I am not Beakman, nor do I have anything to do with the show. I am just a Read More Go to Site Benjamin Franklin and Electricity Votes:0 Electrified Ben Sound of Thunder (59k) Have you ever watched lightning during a storm? Have you ever wondered about its power? Have you ever wanted to know more about it? Ben Franklin did. Actually, Ben's interest in electricity was not just limited to lightning. He received an electricity tube from his friend Peter Collinson and began to play around with it, performing experiments. However, it is Ben's interest in lightning that we best remember. Ben suspected that lightning was an electrical current in nature, and he wanted to see if he was right. One way to test his idea would be to see if the lightning would pass through metal. He decided to use a metal key and looked around for a way to get the key up near the lightning. As you probably already know, he used a child's toy, a kite, to Read More Go to Site Benjamin Franklin and Electricity Votes:0 Electrified Ben Sound of Thunder (59k) Have you ever watched lightning during a storm? Have you ever wondered about its power? Have you ever wanted to know more about it? Ben Franklin did. Actually, Ben's interest in electricity was not just limited to lightning. He received an electricity tube from his friend Peter Collinson and began to play around with it, performing experiments. However, it is Ben's interest in lightning that we best remember. Ben suspected that lightning was an electrical current in nature, and he wanted to see if he was right. One way to test his idea would be to see if the lightning would pass through metal. He decided to use a metal key and looked around for a way to get the key up near the lightning. As you probably already know, he used a child's toy, a kite, to Read More Go to Site Chapter 15: The Circuit Votes:0 By Keiji Oenoki and Hector Judez [ physics@amersol.edu.pe ] Diode LED Capacitor Photo Resistor Circuit Applet This chapter will explain some electrical components in details. After learning their functionalities and properties, you can enjoy building your own circuit ! Section 1: Diode Diode rectifies or converts alternating current (AC) to direct current (DC). ( Symbol ) Diode is made of two different parts. One part is called p-type and other part is called n-type . In between, we call it the p-n junction. P-type is silicon mixed with boron, and n-type is silicon mixed with phosphorous. In order to explain how it works, we must know about the octet rule and valence electrons . The octet rule is that bonded nonmetialic atoms has eight electron outermost shell or energy level. It means tha Read More Go to Site Circuits in the Circuits Archive Votes:0 Circuits in the Circuits Archive Collection of Ascii Circuit Diagrams [V1.00] Miscellaneous Circuits (21 circuits) IR Related Circuits (7 circuits) PC Related Circuits (8 circuits) Telephone Related Circuits (14 circuits) Radio-related Circuits Active Antenna Build a Yagi-Uda Antenna Small Radio Transmitter RF Sniffer 500 MHz Computer-related Circuits Drawing power from a PC Serial port Computer controlled IR device (hardware/software) Audio/Music Circuits Microphone Pre-Amp Midi Passthrough Circuit 100W RMS Amplifier Paradoxical sound synthesizer Simple Microphone Amplifier Guitar Effect Circuit Telephone Related Circuits Caller ID Circuit Telephone related circuits - JEC TECH [LINK] --> Miscellaneous Circuits Switch De-bouncer Using a 555 Taken from Forrest Mims Mini Notebook. The Multiv Read More Go to Site Coulomb Force Votes:0 Coulomb Force With the study of electricity, we begin a qualitatively different phase of our study of physics. Up to now, we have for the most part dealt with topics which are macroscopic, and of which we have some intuitive appreciation. For the next few chapters, we will be concerned with the microscopic world, which is largely hidden from our senses and our common sense. So far, most of the forces, pressures and stresses we have studied have been communicated by direct contact: I lean on the wall and the wall pushes on me (otherwise I would fall through it!). The sole exception has been gravity, which we have unquestioningly accepted as a given part of our experimental environment. As we will see below, there is a more causal way to deal with gravity, and it is intimately related to the Read More Go to Site DC Circuits Votes:0 DC C IRCUITS © Department of Physics, University of Guelph Part A Schematic Diagrams Ohm's Law Resistors in Series Resistors in Parallel Part B Resistors in Combination Kirchhoff's Current Law Kirchhoff's Voltage Law Part C Complicated Circuits Superposition Theorem Problem Solving Example Problems Self Test Exit to: Physics Tutorial Menu Understanding: Electricity Program Our site has been selected as a valuble internet resource for Discovery Channel School's Physics in Motion Program for spring 1998." Read More Go to Site DC Circuits Votes:0 DC C IRCUITS © Department of Physics, University of Guelph Part A Schematic Diagrams Ohm's Law Resistors in Series Resistors in Parallel Part B Resistors in Combination Kirchhoff's Current Law Kirchhoff's Voltage Law Part C Complicated Circuits Superposition Theorem Problem Solving Example Problems Self Test Exit to: Physics Tutorial Menu Understanding: Electricity Program Our site has been selected as a valuble internet resource for Discovery Channel School's Physics in Motion Program for spring 1998." Read More Go to Site EIA - Electricity Data, Electric Power Capacity and Fuel Use, Electric Surveys and Analysis Votes:0 Home > Electricity Electricity U.S. Data Sales, Revenue & Prices Retail Price to Customers Revenue Retail Sales Wholesale Market Data Electric Power Plants Existing Generating Capacity Planned Generating Capacity Plants Sold & Transferred Electric Power Industry Companies Major Disturbances Generation by Energy Source by State Fuel Used in Electric Generation Consumption of Fossil Fuels Fuel Receipts and Quality Fuel Stocks Costs Revenue & Expenses Generating Technologies Cost Trade Demand Capacity, Resources & Margins Demand-Side Management Environmental Emissions Generators with Environmental Equipment Average FGD Costs Electricity Databases State-level Spreadsheets 1990-2006 Annual Capacity Data Annual Sales/Revenue Monthly Generation & Fuel Consumption more... International Data Electr Read More Go to Site Electrcity Votes:0 Listen via Real Audio while you read You have seen the use of electricity all around you. Be it through a television, a car, or even the computer you are at right now. Electricity is all around us, and with the help of some good friends we will understand it better. Some may ask, but wait, this section is called electricity and magnetism - so what about magnetism? Well once you've gone through our cosmic journey you will find out. So to join the journey of never ending knowledge click away! Home | Quiz | Instructions What is electricty | Terms | Manupilation Magnetism | Links between electricity and magnetism | Applications Motion | Planetary Motion | Sound and Waves | Electricity and Magnetism | Light and Energy Read More Go to Site Electric Charge Votes:0 Next: Electric Forces and Fields Up: Electric Fields and Potentials Previous: Electric Fields and Potentials Electric Charge The phenomena of two objects sticking together can be explained by the notion that objects when rubbed can gain a net electric charge . There are two types of charge, labeled positive ( + ) and negative ( - ), with the following basic property: Like charges of the same sign repel each other. Unlike charges of the opposite sign attract each other. Detailed experiments have established the following fundamental characteristics of electric charge: Charge is never created nor destroyed - it is conserved . Charge always comes in an integral multiple of a basic unit - it is quantized . This basic unit of charge is conventionally denoted by e : e = 1.602 x 10 - 19 Coulombs Read More Go to Site Electric charge and Coulomb's law Votes:0 Electric charge and Coulomb's law 7-6-99 Charge there are two kinds of charge, positive and negative like charges repel, unlike charges attract positive charge comes from having more protons than electrons; negative charge comes from having more electrons than protons charge is quantized, meaning that charge comes in integer multiples of the elementary charge e charge is conserved Probably everyone is familiar with the first three concepts, but what does it mean for charge to be quantized? Charge comes in multiples of an indivisible unit of charge, represented by the letter e. In other words, charge comes in multiples of the charge on the electron or the proton. These things have the same size charge, but the sign is different. A proton has a charge of +e, while an electron has a charge of Read More Go to Site Electric current Votes:0 Electric Current Electric current is the rate of charge flow past a given point in an electric circuit, measured in coulombs/second which is named amperes. In most DC electric circuits , it can be assumed that the resistance to current flow is a constant so that the current in the circuit is related to voltage and resistance by Ohm's law . Microscopic view of electric current Measurement with ammeter Conventional electric current direction Index Electric Circuits HyperPhysics ***** Electricity and Magnetism R Nave Go Back Electric Charge The unit of electric charge is the coulomb. Ordinary matter is made up of atoms which have positively charged nuclei and negatively charged electrons surrounding them. Charge is quantized as a multiple of the electron or proton charge: The influence of cha Read More Go to Site electric current Votes:0 WHAT IS ELECTRIC CURRENT? CLICK HERE TO BUY THE CD An electric current is a flow of microscopic particles called ELECTRONS flowing through wires and electronic components. It can be likened to the flow of water through pipes and radiators etc. As water is pushed through pipes by a pump, electric current is pushed through wires by a battery. Hot water does work by heating radiators. Electric current does work by heating fires, lighting lamps, ringing bells, electroplating etc. A basic law of the universe is that like charges repel and unlike attract. Two negatives will repel each other. A negative and a positive will attract each other. An electron has a negative charge. The negative (-ve) terminal of a battery will push negative electrons along a wire. The positive (+ve) terminal of a batt Read More Go to Site Electrical Safety Votes:0 Version 1 2001 Read More Go to Site Electricity Votes:0 electricity (?-l?k-tr?s?e-t?), class of phenomena arising from the existence of charge . According to physics , most elementary particles of matter possess charge, either positive or negative. Particles of like charge repel each other; Particles of unlike charge are attracted . The electric force between two charged particles is much greater than the gravitational force between the particles. Many of the bulk properties of matter are ultimately due to the electric forces among the particles of which the substance is composed. Materials differ in their ability to allow charge to flow through them. Those that allow charge to pass easily are conductors , whereas those that allow extremely little charge to pass through are called insulators , or dielectrics . Those which have no electrical res Read More Go to Site Electricity Votes:0 This simulation simulates the flow of current in a circuit. The resistor, battery, and light bulb are connected in series. For this simulation student can vary the resistance of the light bulb, the resistance of the resistor, and the voltage of the battery. Calculation are done base on Ohm's Law . Run Simulation Copyright © 1997 Visual Physics All rights reserved. Send comments and bug reports to 10170@advanced.org Read More Go to Site Electricity Votes:0 Welcome to our Electricity page . without electricity there is no light no internet no televisions no mobiles and this Page wouldn't be created . Browse the Electricity : Elecriticity Electrostatics Electric charges Electrical measurements Current electricity Electromagnetism Conduction in Liquids and Gases Sources of Electromotive force Static electricity Discharge Lightning Electric lines of Forces Repulsion of like charges Electroscope Induced electrical Charges Magnetic fields and Electricity Coulomb's Torsion Balance Electric Circuit Electric Motors and Generators DC-Generators DC-Motors AC-Generators AC-Motors Miscellaneous Machines Earth Earth Composition Internal Heat Flow Terrestrial Magnetism Magnetic Poles Dyamo Theory Earth Inner Core Structure Field Intensity PaleoMagnetism Ma Read More Go to Site Electricity Votes:0 Electricity How Electricity Works History of Electricity Experiments Kinds of Electricity Bibliography Think Quest Web Site Our Class Web Site Power Plants Read More Go to Site electricity — FactMonster.com Votes:0 Home World & News U.S. People Word Wise Science Math & Money Sports Cool Stuff Games & Quizzes Homework Center Fact Monster Favorites American Indian Heritage Month Thanksgiving Say Thank You Advent Hanukkah Pearl Harbor Day Campaign 2008 Presidential Factfile International Space Station Most Polluted Places in the World Harry Potter Page Ranger's Apprentice NFL Team Profiles Fact Monster Blog! Science Projects Daylight Saving Time 2007 Calendar 2008 Calendar Reference Desk Atlas Almanacs Dictionary Encyclopedia FunBrain Encyclopedia electricity electricity, class of phenomena arising from the existence of charge . The basic unit of charge is that on the proton or electron —the proton's charge is designated as positive while the electron's is negative. There are three basic systems o Read More Go to Site Electricity in the Woodshop Votes:0 Electricity in the Woodshop (Revised) A comprehensive discussion of electrical issues for woodworkers. By Rick Christopherson Preface Since this article first appeared at The Oak Factory in 1997, I have reformatted it, and added some further information. This article is written for the typical woodworker who runs into the occasional electrical question. While I have carefully verified the information presented here, I cannot be responsible for changes in Electrical Codes, nor the omission of information. The last section of this article has a listing of definitions. I have tried to place any uncommon terms into this section, and reference them as they come up. None of the links used in this document will send you to another file ( except the new discussion on phase converters), so you won' Read More Go to Site electricity. The Columbia Encyclopedia, Sixth Edition. 2001-05 Votes:0 Select Search ----- All Bartleby.com ----- All Reference ----- Columbia Encyclopedia World History Encyclopedia Cultural Literacy World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations Respectfully Quoted English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Brewer's Phrase & Fable Bulfinch's Mythology Frazer's Golden Bough ----- All Verse ----- Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordswo Read More Go to Site ESD Journal - The Control of Risks from Static Electricity Votes:0 ESD Journal Home Page Fowler Associates for ESD Consulting and Testing THE CONTROL OF RISKS FROM STATIC ELECTRICITY John Chubb John Chubb Instrumentation, Unit 30, Lansdown Industrial Estate, Gloucester Road, Cheltenham, GL51 8PL, UK (Tel: +44 (0)1242 573347 Fax: +44 (0)1242 251388 email: jchubb@jci.co.uk) Abstract: A major concern in assessing risks from static electricity is the charge retained on materials. Materials cannot be properly and fairly assessed by traditional ?resistivity? measurements. Charge decay measurement are fine - but may be unfair to some newer cleanroom garment fabrics. A new approach has been developed and is reported for assessing materials. The approach is to measure the level of surface voltage created by known quantities of charge on the material surface. This Read More Go to Site Exploratorium: Science Snacks About Electricity Votes:0 The Exploratorium Science Snacks Snacks about Electricity Snack name Description Charge and Carry Store up an electric charge, then make sparks. Circles of Magnetism I You can make a magnetic field that's stronger than the earth's! Circles of Magnetism IV Two parallel, current-carrying wires exert forces on each other. Eddy Currents A magnet falls more slowly through a metallic tube than it does through a nonmetallic tube. Electrical Fleas Start your own electric flea circus! Electroscope What's your (electrical) sign? Hand Battery Your skin and two different metals create a battery Magnetic Pendulums Copper coils become electromagnetic swings. Magnetic Suction This experiment shows how your doorbell works. Motor Effect A magnet exerts a force on a current-carrying wire. Short Circuit What Read More Go to Site ExploreLearning - Interactive Math and Science Simulations. Votes:0 Skip Navigation ( 2 ) Page Bottom ( 3 ) * Students with a Class Code » Enroll in a Class Here What is a Gizmo? Free Trial Gizmos! Online simulations that power inquiry and understanding. New to ExploreLearning? What educators are saying about us Introduction to ExploreLearning Teaching with Gizmos – demo movies What the research says about Gizmos Sneak Peek Our Elementary Science Gizmos for Grades 3–5 are here. • Get Started Now! What's New Recent Headlines from our blog, the Buzz : Back to the basics Thanksgiving Holiday -- Office Closed November 22nd and 23rd New Color Gizmo New Gizmos Phases of the Moon Levers Circuit Builder Force and Fan Carts Mineral Identification Browse the Collection Browse Mathematics Gizmos: Grade 6-8 - Number & operations - Algebra - Geometry - Read More Go to Site Foundations of Electronics - Electric Potential and Potential Energy Votes:0 Electric Potential and Potential Energy We will discuss electric potential and electric potential energy, and the differences between them. You may be familiar with the concept of potential energy from your science class. Basically, if an object has the potential to do work , then we say it has potential energy. For example, say you are standing on your roof, holding a baseball. When you are holding the baseball, it has a certain amount of potential energy from gravity. If you were to drop the ball off the roof, that potential energy would be converted to kinetic energy , or the energy of motion. Any conservative force has a potential energy associated with it. The coulomb force is conservative, so, you guessed it, we have electric potential energy. Work is defined by a force multiplied by Read More Go to Site generator — Infoplease.com Votes:0 Site Map | FAQ in All Infoplease Almanacs • General • Entertainment • Sports Biographies Dictionary Encyclopedia Spelling Checker Daily Almanac for Nov 23, 2007 Search White Pages Skip Navigation Home Almanacs Atlas Encyclopedia Dictionary Thesaurus Features Quizzes Timelines Countries American Indian Heritage Month World & News United States History & Gov't Biography Sports Arts & Ent. Business Society & Culture Health & Science Homework Center Fact Monster Kid's reference, games, quizzes Daily Almanac This Day in History Today's Birthday Word of the Day Editor's Favorites American Indian Heritage Month Thanksgiving Advent Hanukkah Pearl Harbor Day Campaign 2008 Pakistan Country Profile Iraq Timeline Presidential Factfile NFL Team Profiles Daylight Saving Time 2007 Current Read More Go to Site Greatest Engineering Achievements of the Twentieth Century Votes:0 About Timeline The Book Welcome! How many of the 20th century's greatest engineering achievements will you use today? A car? Computer? Telephone? Explore our list of the top 20 achievements and learn how engineering shaped a century and changed the world. 1. Electrification 2. Automobile 3. Airplane 4. Water Supply and Distribution 5. Electronics 6. Radio and Television 7. Agricultural Mechanization 8. Computers 9. Telephone 10. Air Conditioning and Refrigeration 11. Highways 12. Spacecraft 13. Internet 14. Imaging 15. Household Appliances 16. Health Technologies 17. Petroleum and Petrochemical Technologies 18. Laser and Fiber Optics 19. Nuclear Technologies 20. High-performance Materials Copyright © 2007 by National Academy of Engineering. All rights reserved. Printer-Friendly Version . T Read More Go to Site How can you stop static electricity? Votes:0 F.A.Q.#25. How can you stop static electricity? An electric charge is produced when two pieces of material are rubbed together, such as silk and a glass rod, or when you comb your hair. Did you ever walk across a carpet and get a shock when you touch a metal doorknob. Your shoe soles built up a charge by rubbing on the carpet, and this charge was transferred to you and was discharged on the knob. These charges are called static electricity, and results when one material transfers its electrons to another. Even materials known as insulators (glass and rubber) can build up charges of electricity. Static electricity occurs quite often when there is low moisture and the weather is cold and dry. It stands to reason replacing the moisture would be a big help. Grounding is the best way of removin Read More Go to Site How Things Work - Topical Page Votes:0 Search for a String In Question In Answer . . . Site Map Home Page Questions and Answers By Date: Select Year Questions for 2004 Questions for 2003 Questions for 2002 Questions for 2001 Questions for 2000 Questions for 1999 Questions for 1998 Questions for 1997 Questions for 1996 By Topic: Select Topic Air Conditioners Airplanes Audio Amplifiers Automobiles Balloons Balls, Birdies, and Frisbees Bicycles Bouncing Balls Cameras Centrifuges and Roller Coasters Clocks Clothing and Insulation Compact Disc Players Computers Electric Motors Electric Power Distribution Electric Power Generation Electronic Air Cleaners Elevators Falling Balls Flashlights Fluorescent Lamps Incandescent Light Bulbs Knives and Steel Lasers Magnetically Levitated Trains Medical Imaging and Radiation Microwave Ovens Nuc Read More Go to Site Howstuffworks "How Van de Graaff Generators Work" Votes:0 HowStuffWorks.com RSS Make HowStuffWorks your homepage | Get Newsletter Search HowStuffWorks and the web: EXPLANATIONS • Auto • Communication • Computer • Electronics • Entertainment • Food & Recipes • Health • Home & Garden • Money • People • Science – Earth Science – Engineering – Life Science – Military – Physical Science – Space – Supernatural • Travel EXPERT REVIEWS Consumer Guide Auto Consumer Guide Products Mobil Travel Guide PRICES Shop HowStuffWorks REFERENCE Encyclopedia Maps VIDEO STUFF Featured Video BETA HSW Original Videos REFERENCE LINKS Main > Science > Physical Science PRINT EMAIL How Van de Graaff Generators Work by John M. Zavisa Inside This Article 1. Introduction Read More Go to Site Index Votes:0 Welcome to the Magnificent World Of Electricity Read More Go to Site International Rectifier - HEXFET Power MOSFET Product Information Votes:0 Application Training Guide Basic Circuit Theory Basic Semiconductor Theory Device Cross Section Mounting Techniques Typical Applications Glossary of Acronyms Part Search Site Search AC-DC Appliances Audio Automotive DC-DC Die Products Aerospace/Defense Desktop/Server Lighting Motor Control NetCom Portables Application Training Guide Electronics 101 Application Notes Technical Papers Technical Support Design Center Reference Designs Models Design Tips Packaging Information Quality & Reliability Reports Basic Circuit Theory Basic Semiconductor Theory Device Cross Section Mounting Techniques Typical Applications Glossary of Acronyms International Sites: | Chinese 简体中文 | Korean 한국어 | Japanese 日本語 | About International Rectif Read More Go to Site ippex online Votes:0 THE INTERNET PLASMA PHYSICS EDUCATION EXPERIENCE home | contact | search | privacy & security notice Information Home Mission Science Education At PPPL Education About Fusion Interactive Physics Virtual Tokamak Ask a Physicist Fusion Data Analysis Support Privacy & Security The Crew Site Map Search Electricity and Magnetism ! This module will introduce you to many of the basic concepts involved with Electricity and Magnetism. We will introduce you to static charge, moving charge, voltage, resistance, and current. Magnetism and how it relates to electricity will also be presented. To navigate through out this module you will often use the right arrow that will be in all lessons. There is also a "file cabinet" which lets you jump from one module to another. The choices in the menu Read More Go to Site Jeremy Smallwood's static electricity page Votes:0 Jeremy Smallwood's Static Electricity Page Contents About static electricity Preventing ESD damage in electronic manufacture Materials for electrostatic solutions Reducing static electricity nuisance in shops, offices, homes and cars Avoiding electrostatic spark explosion hazards Avoiding electrostatic problems in tools and machinery Using electrostatics in technology Purifying and recycling waste materials using electrostatic separation Capacitive sensor solutions Biographical Information Contact Information Comments, Questions and Suggestions The same phenomena which create lightning and thunderstorms are around us every day, creating incredibly high voltages which cause sparks and shocks. Static electricity is most often experienced as nuisance shocks, but can in some circumstances caus Read More Go to Site Jones on Stepping Motors Votes:0 Control of Stepping Motors A Tutorial by Douglas W. Jones T HE U NIVERSITY OF I OWA Department of Computer Science This material expands on material originally posted to the rec.railroad newsgroup in 1990. Significant parts of this material have been republished as sections 5.2.10, 10.8, 10.9 and 10.10 of the Handbook of Small Electric Motors edited by W. H. Yeadon and A. W. Yeadon, McGraw-Hill, 2001, and as Applications Note 907 published by Microchip Inc in 2004. Copyright © 1995, Douglas W. Jones; major revision 1998. This work may be transmitted or stored in electronic form on any computer attached to the Internet or World Wide Web so long as this notice is included in the copy. Individuals may make single copies for their own use. All other rights are reserved. Index Abstract Introduc Read More Go to Site Learn Physics Today! Votes:0 | Mirror Site | About Learn Physics Today | Write Us | 1. Basic Skills Please choose a calculator (see the status bar for explanation): Your browser doesn't support Java. Please use Java-enabled browser. 2. Velocity 3. Acceleration 4. Forces and Newton's Laws 5. Motion in Two Dimensions 6. Projectile and Periodic Motion 7. Lesson 1 Review 8. Waves 9. Sound 10. Light 11. Electric Forces 12. Electric Field 13. The Current 14. Basic Circuit 15. Advanced Circuit Colegio Franklin Delano Roosevelt March, 1998 Read More Go to Site Lightning - Static Electricity Votes:0 Static Electricity The Big Spark Thunder Safety Experiments The Quiz Glossary To understand lightning, it helps to learn a little about electricity. After all, lightning is a form of electricity. A quick way to learn about electricity is to learn about static electricity. You have probably experienced static electricity . It's the charge that you create when you scuff your feet on a rug. Then when you touch a doorknob, you get a small shock. That's static electricity. The reason why it works is a little more complicated. To start, you have to know that every object is made up of billions of tiny particles, called protons and electrons . These particles are so small they can only be seen with special microscopes. Despite their small size, protons and electrons carry an electrical charge. Pr Read More Go to Site Molecular Expressions Photo Gallery: The Superconductor Collection Votes:0 The Superconductor Collection Ceramic Superconductor Single Crystal Superconductors Superconductivity is a phenomenon characterized by the disappearance of electrical resistance in various metals, alloys, and compounds when they are cooled below a certain level, usually termed the critical temperature (Tc). The phenomenon was first observed in 1911 by Heike Kamerlingh Onnes, who noted that the resistance of a frozen mercury rod abruptly dropped to zero when cooled to the boiling point of helium (4.2 Kelvin). Onnes is also credited with realizing that a material in a superconducting state can be returned to its standard, nonsuperconducting condition through exposure to a strong magnetic field of a certain critical value or by passing a large current through it. For his significant findings, Read More Go to Site MSN Encarta : Online Encyclopedia, Dictionary, Atlas, and Homework Votes:0 MSN home Mail My MSN Sign in encarta greeting cards more Hotmail Messenger My MSN MSN Directory Air Tickets/Travel Autos Careers & Jobs City Guides Dating & Personals Extra Games Green Health & Fitness Horoscopes Lifestyle Maps & Directions Money Movies Music News Real Estate/Rentals Shopping Spaces Sports Tech & Gadgets TV Weather White Pages Yellow Pages encarta ® Home Encyclopedia Dictionary Atlas K-12 Success College & Grad School Adult Learning Quizzes More Additional Reference Materials Thesaurus Translations Multimedia Other Resources Education Resources Math Help Foreign Language Help Project Planner Scholarships & Financial Aid Jobs & Internships Online Degrees Coffee Break Ask Bill Nye the Science Guy Top 10 Lists Columns On This Day Encarta Products Help Today's Highlights Novem Read More Go to Site Multimedia Physics Studios - Table of Contents Votes:0 Welcome to the The Multimedia Physics Studios consists of a collection of GIF animations and accompanying explanations of major physics concepts. The animations cover common physics principles discussed in a first-year high school physics course. The animation and discussion have been written specifically for beginning students of physics. While the animations provide a strong visual reinforcement of physics concepts, they are not interactive. Interactive Shockwave animations are available at the Shockwave Physics Studios . Related information and discussion of physics concepts can be found at The Physics Classroom tutorial. Topics: | 1-Dimensional Kinematics | Newton's Laws | Vectors and Projectiles | Momentum and Collisions | Work and Energy | Circular, Satellite and Rotational Motion | Read More Go to Site Nature's Fantastic Fireworks -- Lightning Votes:0 5th Grade Page | Science Home Page | Curriculum Home Page | USOE Home Page For best viewing please open this window to the full width of the screen! ELECTRICITY--WHAT A SHOCK! NATURE'S FANTASTIC FIREWORKS LIGHTNING 3050-0503 One of the most awesome and frightening displays of static electricity is lightning. Lightning bolts are caused by the buildup of opposite charges on the ground and in the clouds. When some kinds of matter rub together, static electricity is created. Static electricity is not the kind of electricity that is used for light bulbs, toasters, appliances, etc. You probably know that lightning can be very dangerous. RESEARCH IT! Do you know what you should do when you are near lightning? Use the Internet to find out. List five rules you should follow to keep safe. GO THERE! Read More Go to Site Ohm's Law Votes:0 National Aeronautics and Space Administration Glenn Research Center Learning Technologies Project Educational Product Teachers Grades 9-12 OHM'S LAW V = I x R Where: V = Voltage I = Current R = Resistance Example Problem: A nine volt battery supplies power to a cordless curling iron with a resistance of 18 ohms. How much current is flowing through the curling iron? Sketch: Solution: 1.) Since V (Voltage) and R (Resistance) are known, solve for I (Current) by dividing both sides of the equation by R. 2.) The R's on the right hand side of the equation cancel. 3.) I is then left in terms of V and R. 4.) Substitute in the values for V (Voltage) and R (Resistance) . 5.) Solve for I (Current) . Problem #1 A 110 volt wall outlet supplies power to a strobe light with a resistance of 2200 ohms. How Read More Go to Site OSH for Everyone Votes:0 Viewing this page requires a browser capable of displaying frames. Read More Go to Site Perovskite and Related Structures Votes:0 Navigation: Crystal Sites Home Strukturbericht Designation Pearson Symbol Space Group Prototype Index FAQ References Other Sites Questions? FAQ Submitting additions to the database NRL Sites NRL Home MSCT 6000 MSTD 6300 CCMS 6390 Navy Sites DoN ONR Recruiting FOIA Crystal Lattice Structures: Reference Date: 1 Jun 1996 Last Modified: 21 Oct 2004 Perovskite and Related Structures Perovskite and related structures. The cuprate superconductors listed here are named according to the convention of Shaked et al. in Crystal Structures of the High-Tc Superconducting Copper-Oxides Perovskite Structure (E2 1 ) CaTiO 3 Pnma distorted Perovskite ReO 3 Structure (D0 9 ) Ferroelectric LiNbO 3 Paraelectric LiNbO 3 Monoclinic PZT Tetragonal PZT 0201 [(La,Ba) 2 CuO 4 ] 1212C [YBa 2 Cu 3 O 7-x ] Go back to C Read More Go to Site Physics by Demonstrations Votes:0 Loading script You are [an error occurred while processing this directive] visitor What comes to your mind when you see or hear the word physics ? Believe it or not, but physics is in everything around us. We use physical concepts in almost everything we do. Physics is so important that it is even considered to be the basis for all other sciences. Physics by Demonstrations is a free online interactive learning/teaching tool. As the name implies, this site lets the user learn or teach physics not just by theories but also by visual demonstrations. With our site users can learn/teach basic and not so basic concepts of physics, run interactive Java simulations, watch animations, and have fun while learning or teaching. The site is broken down into five main sections: mechanics , fluids , wave Read More Go to Site Physics Lessons, Tutorials and Help by Science Joy Wagon Votes:0 Log in: Username: Password: I forgot my username or password. Home Physics Workbooks Physics Zone Chemistry Zone About Help Join Physics Lessons Review Links Solutions Physics Lessons, Tutorials and Help The Physics Zone is designed to be a resource for learning introductory level, Algebra & Trig based, Physics. The Physics Lessons and Review are organized by topic. General Physics Motion Projectile Motion Forces Rotation & Circular Stuff Torque Work & Energy Momentum Electricity & Magnetism Electrostatics Electricity Magnetism Waves, Light & Sound Optics Modern Physics Nuclear Physics Some lessons require plug-ins: Test your computer for plug-ins Some of the physics lessons require a plug-in (extra program for your web browser) in order to see or play the lesson. If you click on a lesson Read More Go to Site Physics News Update Number 269 - HOLOGRAM TEMPLATE FOR ATOMS Votes:0 SEARCH AIP Number 269 (Story #3), May 6, 1996 by Phillip F. Schewe and Ben Stein HOLOGRAM TEMPLATE FOR ATOMS . Physicists at NEC (Japan) and the University of Tokyo have invented a rudimentary form of lithography using atoms instead of light waves to produce an image. The researchers reconstruct a desired pattern at a detector by using a computer-generated hologram (essentially the Fourier transform of the pattern recorded in a silicon nitride membrane) to manipulate a beam of cold neon atoms. Cold enough to act as waves (with a quantum wavelength of 7.1 nm), the atoms were diffracted at the hologram and deposited onto a fluorescent plate. (J. Fujita et al., Nature, 25 April 1996.) Read More Go to Site Rami Arieli: "The Laser Adventure" Votes:0 Rami Arieli: "The Laser Adventure" Chapter 10 Section 4, page 9 Applications of Holograms in Anti Forgery - Identification Since recording holograms requires special equipment and conditions, holograms can be used to help prevent forgery of important documents. Holograms are used on credit cards, identification documents, classified documents, valuable merchandise, and even banknotes. These holograms are usually rainbow holograms , which can be viewed at white light. After making the master hologram, duplicating the holograms in many copies is very cheap . Thus, it helps prevent forgery , and does not add a lot to expenses. Read More Go to Site Rami Arieli: "The Laser Adventure" Votes:0 Rami Arieli: "The Laser Adventure" Chapter 10 Section 4, page 10 Applications of Holograms in Art Holograms are very attractive visually. Creating holograms enables adding many special effects to the images. There are many museums showing holograms created by artists, and many products containing holograms are sold (Pictures, stickers, toys etc.). The art of holography is developing rapidly, as the price of laser drops down. As new cheap diode lasers are developed, and their properties improved, they are starting to be used for creating holograms. In the past the coherence length of diode lasers were very poor, but in 1997 many scientists report using them for holography. New cheap holographic recording materials, developed in Russia, are entering the market recently. Read More Go to Site Rami Arieli: "The Laser Adventure" Votes:0 Rami Arieli: "The Laser Adventure" Chapter 10 Section 3, page 17 Rainbow Hologram - Benton Hologram The second method of creating white light holograms use interference in 2-D but based on two recording stages . This is the method used to create the holograms on credit cards, magazines, and other commercial products to prevent forgery. These holograms look in colors that depend on the viewing angle. The physical basis of this method is to reduce the amount of information on the hologram . The vertical parallax is eliminated. Since humans have two eyes in horizontal position, we are less sensitive to vertical parallax. The recording method was developed in 1969 by Steve Benton from Polaroid Company. Changing the viewing angle in the vertical plane, show the image at all the colors of the sp Read More Go to Site Soaking in atmospheric electricity Votes:0 Space Science News home Soaking in atmospheric electricity 'Fair weather' measurements important to understanding thunderstorms One of a series of stories covering the quadrennial International Conference on Atmospheric Electricity, June 7-11, 1999, in Guntersville, Ala. June 15, 1999: While experts advise you to stay indoors to avoid lightning, few will tell you that you can't escape it altogether. In fact you're soaking in the return path for all the thunderstorms taking place across the world. Fortunately, the voltage is modest and the current is almost nothing, so the effect is almost impossible to measure. "Fair weather electricity deals with the electric field and the electrical current in the atmosphere, and the conductivity of the air," explained Dr. Lothar Ruhnke of Airb Read More Go to Site Sorry Page Moved: School for Champions Votes:0 This page has moved to www.school-for-champions.com/science/static_causes.htm Click Here Sorry for the inconvenience October 2007 Read More Go to Site Start - ThinkQuest Team 26663 Votes:0 ? Quick Jump Start History Use of the current Power stations Electricity Millenium Bug Future WWW-Board About us Thanks to... Guestbook Feedback Sitemap Search Start History Use of the current Power stations Electricity Millenium Bug Future WWW-Board About us Thanks to... Guestbook Feedback Sitemap Search Welcome You are at the gate, which enables the access to the large world of the electricity. On this homepage you get the experience, how and by whom mankind came to current. Further you can read with which procedures nowadays this marvelous " raw material " is won. On your excursion you will discover also still another view into the future. We would be pleased about an entry in the guest book and through the feedback you could communicate with us and suggestions and criticism would attac Read More Go to Site Static electricity - What creates static charge & static shock? Learn how to create & eliminate it Votes:0 Static Electricity Learn about static charge & static shocks by Science Made Simple | Science Projects | Articles | Store | Metric Conversions | Subscribe | What is Static Electricity? --- Static electricity experiments & projects Learn More: Triboelectric Series, Coulomb's Law & static charge I Can Read: Static Electricity Tips on how to eliminate static electricity problems in your home or office. Copyright © 1995, 2007 by Science Made Simple, Inc. Home Science Projects Science Fair Projects Science Articles What is Science Made Simple? Subscribe Unit Conversions The Science Store You walk across the rug, reach for the doorknob and..........ZAP!!! You get a static shock. Or, you come inside from the cold, pull off your hat and......BOING!!! Static electricity makes your hair Read More Go to Site The American Experience | Edison's Miracle of Light | AC - DC: What's the Difference? Votes:0 --> AC/DC: What's the Difference? In 1887 direct current (DC) was king. At that time there were 121 Edison power stations scattered across the United States delivering DC electricity to its customers. But DC had a great limitation -- namely, that power plants could only send DC electricity about a mile before the electricity began to lose power. So when George Westinghouse introduced his system based on high-voltage alternating current (AC), which could carry electricity hundreds of miles with little loss of power, people naturally took notice. A "battle of the currents" ensued. In the end, Westinghouse's AC prevailed. But this special feature isn't about the two electrical systems and how they worked. Rather, it's a simple explanation that shows the difference between AC and DC. To find o Read More Go to Site THE P ZONE - Introduction to Electricity and Magnetism Votes:0 Motion Force Work Energy Electricity Magnetism Atomic Nuclear Home Office The Quad Theater Library Other INTRODUCTION The Greeks knew the magnetic properties of the mineral lodestone (magnetite) as early as 600 B.C. Thales Miletus (640 - 540 B.C.), an early Greek mathematician and astronomer, was aware of the properties of attraction and repulsion of lodestone with like pieces of lodestone. He too knew if an electrostatic effect called the amber effect, that is, the attraction of bits of straw to an amber rod that had been rubbed with wool. The laws of electricity and magnetism were closely studied by James Clerk Maxwell (1831 ?1879), a Scottish physicist. Maxwell wondered why the physical laws were not symmetric when expresses in mathematical form. By applying the concept of symmetry, he Read More Go to Site The Shocking Truth About Electricty Votes:0 The Shocking Truth About Electricty Read More Go to Site The Unnatural Museum - Static Electric Fun Votes:0 Fun with Static Electricity Electric charges are all around us, but we don't always see them in fantastic displays like ball lightning or St. Elmo's Fire. Static electricity builds up on our bodies as we scuff our way across a carpet then gives us a shock when it jumps from our fingers to a door knob or other object. We can see the effect of static electricity on water with a simple experiment. STEP 1: Get a comb. Go to a sink and get a thin, smooth stream of water trickling out of the tap. STEP 2: Pass a comb through your hair a dozen times or so to give it a static charge. STEP 3: Hold the comb close to the water (not touching it) part way down the stream. The stream should bend towards the comb. The static electric charge is attracting the stream of water. STEP 4: You can try a variatio Read More Go to Site The Unnatural Museum - Static Electric Fun Votes:0 Fun with Static Electricity Electric charges are all around us, but we don't always see them in fantastic displays like ball lightning or St. Elmo's Fire. Static electricity builds up on our bodies as we scuff our way across a carpet then gives us a shock when it jumps from our fingers to a door knob or other object. We can see the effect of static electricity on water with a simple experiment. STEP 1: Get a comb. Go to a sink and get a thin, smooth stream of water trickling out of the tap. STEP 2: Pass a comb through your hair a dozen times or so to give it a static charge. STEP 3: Hold the comb close to the water (not touching it) part way down the stream. The stream should bend towards the comb. The static electric charge is attracting the stream of water. STEP 4: You can try a variatio Read More Go to Site Theater of Electricity© 1995 Museum of Science, Boston Votes:0 [ HISTORY | CONSTRUCTION | SPARKS | TOUCHING LIGHTNING | FRANKLIN'S KITE | TESLA COILS | LIGHTNING | SAFETY QUIZ | TEACHER RESOURCES | VIDEO GALLERY | PICTURE GALLERY ] Read More Go to Site ThinkQuest : Site Unavailable Votes:0 Think.com ThinkQuest Library Library Competition Website Currently Unavailable We're sorry, but the ThinkQuest Library site you are trying to access is currently unavailable. It has been taken offline for maintenance. We appreciate your patience and apologize for any inconvenience this may cause. The ThinkQuest Library includes over 5000 educational websites on hundreds of different topics. Please visit the ThinkQuest Library to see if one of the other sites includes the information you need. If you are the creator of this site and you have additional questions, please contact us and be sure to provide your teamID or the url of your site. Unfortunately, we will not be able to help if you do not include the name of the site, url, or teamID to help us identify the site. Thank you for your pa Read More Go to Site ThinkQuest : Site Unavailable Votes:0 Think.com ThinkQuest Library Library Competition Website Currently Unavailable We're sorry, but the ThinkQuest Library site you are trying to access is currently unavailable. It has been taken offline for maintenance. We appreciate your patience and apologize for any inconvenience this may cause. The ThinkQuest Library includes over 5000 educational websites on hundreds of different topics. Please visit the ThinkQuest Library to see if one of the other sites includes the information you need. If you are the creator of this site and you have additional questions, please contact us and be sure to provide your teamID or the url of your site. Unfortunately, we will not be able to help if you do not include the name of the site, url, or teamID to help us identify the site. Thank you for your pa Read More Go to Site ThinkQuest : Site Unavailable Votes:0 Think.com ThinkQuest Library Library Competition Website Currently Unavailable We're sorry, but the ThinkQuest Library site you are trying to access is currently unavailable. It has been taken offline for maintenance. We appreciate your patience and apologize for any inconvenience this may cause. The ThinkQuest Library includes over 5000 educational websites on hundreds of different topics. Please visit the ThinkQuest Library to see if one of the other sites includes the information you need. If you are the creator of this site and you have additional questions, please contact us and be sure to provide your teamID or the url of your site. Unfortunately, we will not be able to help if you do not include the name of the site, url, or teamID to help us identify the site. Thank you for your pa Read More Go to Site TU Berlin, Fakult?t 2, Physikalische Institute: TU Berlin - Physik Votes:0 Physikalische Institute TU Hauptseite | Fakult?t II | Physikalische Institute | Impressum Forschung Studium und Lehre Institutsgliederung Gremien Einrichtungen Professuren Veranstaltungskalender Kolloquien PC-Pool Physik Stellenangebote Seiteninformation Bearbeiter: Johanna Juszkiewicz Letzte ?nderung: 05.11.07 English version Aktuelles Jahresr?ckblick 2006/2007 Mehr... Falls Sie aktuelle Informationen haben, die die Physik betreffen und hier erscheinen sollen (Veranstaltungen etc.), bitte E-Mail an: typo3@physik.tu-berlin.de. Physikalische Institute Physikalische Institute Die Physik an der Technischen Universit?t Berlin, mit ihrem zentral gelegenen Campus, bietet sowohl in der Forschung als auch in der Lehre h?chstes internationales Niveau. Studierende werden mit modernsten, h?ufig inter Read More Go to Site Unit VI Votes:0 Unit 6 - Electromagnetism Glossary of Circuit Terms and Laws Circuit Laws Applied to a Parallel Circuit Magnetic Fields The Magnetic Effect of a Current, The Motor Effect, and Magnetic Field Strength Generators, Lenz’s Law, and Faraday’s Law Transformers Superconductivity Quiz Questions Read More Go to Site unusual lightning facts Votes:0 STORMWISE? Main Index Striking Lightning Facts Lightning is essentially a gigantic electrical spark that results from billions of volts of natural static electricity. Lightning is usually associated with thunderstorms and rain. Most meteorologists will agree that ice formation in clouds is a key factor for starting the "electric generator" that produces lightning. There are several theories as to how lightning is produced. It seems the best one so far [called the "Charge Reversal Concept"] requires that falling graupel (small ice pellets) become negatively charged while small supercooled cloud droplets that strike then bounce off the graupel become positively charged. Cloud temperature can affect the "charge sign" of the graupel. If the temperature is below -10C then the graupel takes a ne Read More Go to Site Welcome To Live The Physics Votes:0 Netscape 3.0, 4.0, MSIE 4.0 800 x 600 res. or higher. Java Enabled OS (ie Win95, WinNT) Netscape 1.1+, 2.0, MSIE 2.0, 3.0 640 x 480 res. Java OS optional. Read More Go to Site Welcome to The Electric Universe Votes:0 Site Map Site Map Read More Go to Site

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