Insulators

Electric Insulators

 

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Many collectors of electric insulators were pleased to see the internet become so widespread. Now they can track down the specific type insulator they need for their collection. Here are details about this interesting hobby.

There is a guy named Mike Parker who just has to have the best article about electrical insulators and collecting on the internet. Here is some of his detail. 

SOURCE

Mike Parker's Insulator Page

I was born in Portland, Oregon in Feb., 1941. I grew up in the far south suburbs of Portland. I collected my first insulator in 1948. It was an aqua Hemingray CD-164. I would set it on the nightstand by the bed and the morning light from the window would shine through it. I marveled at the year written on it, "1893". I did not know what a patent date was. I liked the way the light would show the bubbles and flaws in the glass. I tried to understand what it was used for.

Portland General Electric Co. power pole across from my house where I found my first insulator in 1948.

West Coast Telephone Co, pole with 16 pin crossarm in 1956.

Portland Traction Co. Inter-Urban Trolley at stop near my grade school. Tall cedar poles at left had 57,000, 11,000, 2,400 and 120/240 volt lines. Poles on right had 600 volt D.C. trolley feeder and signal and phone lines. Nothing remains today except for the two buildings on the right.

Mountain States Power Co. pole in Bay City, Oregon using M-2430 multiparts. The line crew there would give me all the multipart insulators that we could haul away. This pole was a grown locally cedar and full of knots.

Old line in Oregon using scarce gray Thomas M-3158 multiparts. Photo taken by me in 1953 at age 12.

 

At this point, I would like to describe the scene at that time in my neighborhood and how the insulator was associated with it. We lived in what now is a well developed suburban area of Portland. But, in 1948, we were far enough out on the edge of town to be "in the sticks". With the exception of one or two main streets, the roads were gravel. The power poles were loaded with aqua glass insulators. In terms of what we know now, there were CD-162 and CD-164 aquas in use everywhere on the power poles. The primary distribution voltage was 2400 and used those insulators on both the 2400 and the 120/ 240 volt crossarms. The power pole that served our house was across the street and visible from our front window. The pole had 5 crossarms on it and every insulator was an aqua Hemingray except for 2 porcelain dead end spools on the 2400 V. top crossarm. The 2 crossarms in the middle supported an ancient black transformer. It was cast iron with fluted sides. Two lower crossarms each had 3 aqua CD-164 insulators, one crossarm was parallel to the street and the wires to our houses came from it. We had 3 individual wires to our house. There was no heavy, ugly twisted service drops in use yet. I found my first insulator under this pole, when some were removed by PGE.

On most of the power poles, below the power lines were 16 pin telephone crossarms, with a single crossarm on each pole. The open wire lines used what I remember now as CD-106 and CD-115 and CD-121 aqua, green and some clear single petticoat insulators. Further out in the country from us the West Coast Telephone Co. had open wire poles of their own, on the opposite side of the road from the power poles. They had miles and miles of 10 and 16 pin crossarms, loaded with glass. The side roads had wooden bracket lines with 3 or four pairs on each pole. Near my house the railroad crossed the river on a huge trestle, CD-145's galore! My uncle, worked for Pacific Telephone & Telegraph after coming home from WW 2 and I would pester him constantly with questions about the insulators and poles. I was a child obsessed with electrical and mechanical things and was not shy about asking a deluge of questions of anybody associated with the subject. Linemen, railroad and utility workers were all fair game. After my dad showed me a 3 wire wood bracket power line he built on trees from a previous house along a long driveway to the power pole, ( they let you do that in those days!) using aqua Hemingray CD-134 types, I would not leave him alone either! All those people would usually give me insulators and suddenly, I was a smart, but wacky kid that collected ... insulators ... not baseball cards or frogs! Eventually, my dad ended up with some of the glass from his power line to the old house and I still have 2 of those today, a Hemingray Standard and a Dec., 1871. It got so the local linemen from Portland General Electric Co. knew this inquisitive kid so well that they would give me insulators off the poles they were working on just to get rid of me and get on with the job. By this time, I had my own 16 pin crossarms up in a tree in the yard, loaded with glass.

Even though the roads were bad, about a half a mile away was an interurban trolley line, which we rode regularly. It ran right past my grade school, which was very distracting. Along the track were very tall cedar power poles. They were old and some leaned precariously. On the top was a 57,000 volt line with big multipart insulators. The next crossarm was 11,000 volts and used big aqua glass CD-289 Fred Locke and CD-282 Hemingray Provo insulators. I would have done almost anything to get one of those and I let the linemen know that. They would tell me hair-raising (literally) stories about how the hair on your arm would stand up when put near those 57,000 volt wires and about the poor lineman who got wrapped up in a live wire that fell during a storm and fried to death as a human coil. They taught me respect for power lines and that I could not just shinny up a pole and grab any jewel that I wanted. Across the track were more poles that held up the trolley wire and carried telephone and signal lines with some glass mixed with mud and best of all, the 600 volt trolley feeder line, supported on various types of Mickey Mouse ears and bat wing glass insulators, many of them CD-257. Of course, in addition to pestering the linemen, I homed in on every streetcar conductor and worker with a barrage of questions, often resulting in free rides. I knew every car by paint job and number and most of the operators. My neighbors, friends and people in the area, by now, regarded me as sort of a "different" kid.

PROGRESS CAUSES CHANGES

Some years went by and now it is the early '50's. Progress was coming. Most of the stuff I described in previous paragraphs was being replaced. The telephone company took down most of the open wire crossarms and replaced them with cable. They would leave the job for the day with the crossarms and insulators just laying under the poles, sometimes for a week on people's front lawns. By now I had found a couple of friends with similar interests and we formed an ... Insulator Club! Our sole purpose was to enjoy collecting the different jewels and carry away as much discarded insulators, crossarms and hardware as we could pack away. I remember a whole street with glass on the ground, left for the day, SF and Star ponies galore. By, the next day, we had it all cleaned up for them! One of the power linemen suggested that we go the company warehouse in Portland and talk to them. He was sure that they would give us all of the insulators we wanted. Since we were too young to drive, we would get one of our dads to drive us there. I remember filling the trunk with so many insulators that the tires looked flat. The streetcars were going away and now we could pick up those Mickey Mouse insulators and the big aqua Converse jobs. Our collections were growing into the hundreds. I took many pole photos with my trusty Brownie.

My grandparents had a big beach house and motel at the Oregon coast near Rockaway Beach and my sister and I would stay there most of every summer while our parents were relieved to be rid of us for a while. The insulators there were very interesting and once again, I was out pestering the lineworkers. The telephone lines were mostly open wire with a lot of purple Whitall Tatum CD-154's and the Coast Guard had their own crossarm of open wire above the telephone wires along Highway 101. The power company was in poor shape and replacing many storm ravaged poles. I got to know the line crew and foreman and they would give me the big multiparts they were replacing. My grandmother was just learning to drive, in her old age and a good excuse to get her out to practice was when I would guide her to the spot where the Mountain States Power Co. crew was working. They would fill up the trunk of her little '51 Chevy with multiparts and we would be on our way! I got to know the power serviceman very well. One day he drove up in a brand new '52 Ford service truck, olive green with Reddy Kilowatt signs on both doors.

He let me ride with him all day on his service calls, answering my barrage of questions. What company would do that today? What with insurance, regulations, etc. But nobody seemed to worry, back then. During those days, I found my first gray M-3158 multipart insulator, in the brush under a pole. This find is now documented in Elton Gish's new book, "Multipart Porcelain Insulators 2nd Edition". I now have the only insulator of this type reported, but hope to find more for other collectors. 

COLLECTION GROWS AND WE ARE FAMOUS
(also see my photo scrap book page 2)

By 1954, our collections grew to phenomenal proportions. We were finding spots where old power insulators were replaced and having our mothers drive us 50 miles from town to be in the right spot at the right time. We now named the club the lofty title: Pacific Northwest Power Co. We had our own 40 foot power pole, erected in one member's back yard. We talked my dad into loading the pole on his pickup and trailer and hauling it there. We dug the hole, set the pole, rigged it with pole steps, crossarms and a transformer case, fuses and insulators. I made many drawings and I was typing letters to all the power company executives on the West coast, telling them about us and how we wanted insulators. They would send nice letters back, along with promotional literature and items and of course, insulators. I remember getting two white Imperial porcelain U-935-B's, a CD-286 Locke and a gray Victor M-4325 multi, all in one shipment. In Portland, the folks at the Pacific Power & Light Co. newsletter, the "Bulletin" found out about us and came to the house, photographed us and the insulators and published a nice article with photos, about us in the March, 1954 issue. I remember the neighbors, peering into the backyard, wondering what those "abnormal boys" were up to, with photographers and reporters. One gentleman, at Victor Insulators Inc., wrote asking what kind of Victor insulators we had and if we had any half-glass, half porcelain insulators. I think they wanted some for the company archives. I didn't even know there was such a thing! I should have been in northern California!

WE "GROW UP" AND LOSE IT ALL

In 1957, now in our mid-teens, we started driving and working on our cars. Girls, beer and parties became more important than insulators, Our collections pretty much just disappeared, neglected and lost in the woods. Fathers and mothers just sort of "cleaned that stuff out of the yard". I now have less than 10 pieces from my "kid collection", lost some I really would like now and have 1 or 2 that I am glad I hung on to. One member's dad buried them in an old well. He now swears he is going to go to his dad's and dig them up someday!

A HOBBY FOR A LIVING

In the early 60's, after I got out of the Air Force, I took all the military electronic communications knowledge I had and started working for some independent telephone companies. I started out as a lineman and later graduated to an installer-repairman. I had my choice of any insulators that I could find and started collecting again. I also worked for the railroad as a lineman and worked on many open wire lines. We would clean the poles of 3 or 4 crossarms of old glass and put up a new single pair open wire line on side brackets. The foreman didn't care if we re-used old insulators on the new line, as long as they were good and I remember putting up nice CD-145 beehives and CD-151's on brand new wood brackets! And yes, even that line is mostly gone now and couldn't stand the onslaught of microwave communication. But, my collection was growing again!

SECOND COLLECTION BEGINS

In the 1970's, I worked, traveling on the road in many Western states and had my climbers and belt in the van at all times, never missing the opportunity to "rescue" some old power or telephone insulators with no wire around. I walked local power lines and found multiparts in bushes. My second collection was growing fast. I patrolled many old power lines in the Northwest and "let myself in" to many old substations. Insulators and hardware were filling up my back yard now and inside my own house. Once again, friends and neighbors wondered what I was doing! It is the same way nowadays only my neighbors know that I am an electrician and electricians are supposed to have stuff like that!

VOLUNTEER LINEMAN NEEDED
(also see my photo scrap book page 3)

In the early 1980's, I had an opportunity to rescue one of the old wooden streetcars that we rode when I was younger. It was being used as a rental cabin and scheduled to be destroyed. I joined the Oregon Electric Railway Museum and we trucked old car 1067 to our "Trolley Park" in the mountains, west of Portland. Here was a volunteer group with a large property operating trolleys by overhead electric wire on over a mile of track. The wire was supported on over a mile of wood poles also. They needed lines built for power, telephone and signals and I now had a place to put up all of the crossarms and insulators that I wanted. We built a nice looking open wire line and I had the choice of putting up jewels in a wide variety of types and colors. I was still climbing poles then and got plenty of exercise. In 1996, the museum lease was up and the whole facility was dismantled and moved to it's present location at Brooks, Oregon, just north of Salem. Once again we are now putting up poles, wire and insulators. We are building almost a mile of a replica 22,000 volt power line along the track using mostly donated M-2430 and M-2435 multipart insulators. This line terminates at a wooden structure outdoor substation that we are also building. It will not be energized but captures the historic look of an operating electric railway. We have received material donated by many well known insulator collectors all over the country. I am really too old to climb poles safely anymore and we now use a bucket truck for this.

AND NOW, THE PRESENT YEARS

Last year, I joined the Jefferson State Insulator Club, the only insulator club I have ever belonged to besides my own! A great bunch of people that have made some monumental discoveries. But as you might suspect from the last paragraph, I am not a full time insulator hobbyist. I am more of a multi-hobbyist with an interest in antique trolleys and autos, radios, phonographs, electric organs and telephones as well as any old electrical item that fascinates me. I still work 8 hours a day and am a homeowner with a 1912 house that needs this and that all the time. I have a very understanding wife (to a point!) Candice, that puts up with all my weird hobbies. I think that those are her words! So I don't have time for insulators constantly. I do enjoy doing research on old local power lines and searching for specific insulators from those lines. I feel extremely lucky to remember the old lines the way they were when I was young. Things have sure changed and the jewels that used to glisten in the sun, supporting important wires, are now glistening in the sun at swap meets and on the computer screen, supporting important collections.

Thanks for taking a few moments to read this and please, enjoy this hobby. There are some great (abnormal!) people in it that dare to take an interest in something different. Some very important and permanent pieces of the insulator puzzle have been put into place in the last 20 years, all due to dedicated and constructive research by individuals seeking and documenting the truth.

Mike Parker

Written by Mike Parker, multipartmike@yahoo.com

SOURCE

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Site Index

Glass Insulators Reference Site

The complete reference site for all aspects of insulator collecting. The site contains hundreds of photos, book and magazine listings, clubs, shows, ICON and much more.

Kyle's Insulators Home Page! [by Kyle Waters, number_1insulator_collector@hotmail.com]

Im working on the set-up of my site right now, it will be ready in a few weeks. Come visit me then. Thanks.

Sir Paws' Prints [by Gus Stafford, manchu3@insightbb.com]

This is our family web site, named after the master of our house, Sir Paws. Insulator stuff can be found in the Litter Box (where some might argue that it belongs?).

Collecting Glass Insulators [by Nathan Lamkey, glassinsulators@yahoo.com]

A collection of photos and miscellaneous items related to collecting insulators including a large database of orignal insulator patent drawings.

Insulator Adventures [by Carla Garner, lipserver_99@yahoo.com]

A fun site that is a travelog of sight seeing and insulator collecting. Come along and see where I went this month!

Doug MacGillvary -- Porcelain Threadless Insulators [by Jenifer MacGillvary, jmacgillvary@hotmail.com]

Here is an opportunity to visit the most complete porcelain threadless collection ever assembled. Every known style is represented, many extremely rare, even some "one of a kind."

Steve Blairs Web Site [by Steve Blair, csb50@sbcglobal.net]

Still in construction phase, but don't let that stop you. Come on in and visit. Photos of my Lynchburg collection, Lois' strains and arrestors, shots of the London/Springfield traveling show and much, much more.

Clint\'s Place [by Clint Gaylord, Perceval2000@comcast.net]

My online porcelain signal display. Featuring . . .34 manufacturers, 27 pages of No Names signals, 5 pages of pics from fellow collectors, a grand total of 78 pages with over 560 individual insulator photographs for your viewing pleasure.

Brian Riecker's Insulator Homepage [by Brian Riecker, meber@sbcglobal.net]

Site Construction in Progress

Insulator Gurls [by Kim & Renee, kim@insulatorgurls.com]

Home of the Unknown Insulator! Can you identify him? We need help! Come on in.........

Jim's Insulators, Etc [by Jim Sinsley, jim@sinsleystuff.info]

This site was created to share with others some of the things that are important to me, collecting Insulators, Bottles, Fruit Jars, Date Nails and Transit Tokens. Take a tour and enjoy. Comments are welcome.

Insulatorstuff Downloads [by Rich Mullins, megafox102@myrealbox.com]

The place to come for all your insulator download needs. Includes Icons, wallpapers, cursors, screen savers, and some goodies to insulatorize Windows XP

British Insulators [by James Bancroft, jb@speedcam.co.uk]

Pictures of my collection plus various poles in service

Russ Franks Insulator Web Site [by Russ Frank, rfrank@owc.net]

Photos and stories about our collection of Insulators, Go-Withs, High Voltage Signs, Surge stuff and much much more. A little about us, our first sales table, our first show display and on to a few suggestions for the new collectors. Come on in and visit, there’s no admission charge, no pop up banners and no annoying ads.

Rainbow Riders Trading Post [by Patti Norton, rrtp@verizonmail.com]

Insulator collecting in general, insulator pins for sale, trading insulators as an alternative to spending money, and more to come soon (including lots of photos).

Richie's Early Telegraph Insulators [by Richie Farmer, milky143@comcast.net]

The work is in progress right now, but i should have something a little better in a few days.

Carl Durand's Insulator Page [by Carl Durand, discovery@mts.net]

Carl's insulator page. A bit about me,what I collect, my favorite insulators, my want list and a link to my forsale's list. Still under construction.

Eian's Insulator Pages [by Eian Greene, eiangreene2000@yahoo.com]

Photos of my glass and porcelain insulator collection and local power lines in service.

Dukeboo's Insulator Collection [by Wesley Lirette, wes107@eastlink.ca]

My collection of Glass insulators for the world to see. I also have some porcelain, rubber and plastic.

The Pole Climbing Primer [by Ronald Schild, rschild@juno.com]

We welcome you to this site to gain knowledge on the fundamentals of safe pole climbing. (Note: this is presented for information purposes only!)

Frantisek Danek's Insulators Page [by Frantisek Danek, drinoczy@freemail.hu]

Frantisek has the biggest collection in Europe, in Czech Republic. He has 5000 different Insulators, and old electric things. He collect all type of Insulators, from the 3 mm long rods to the big 3 metre long strains, include the pin, rod, suspension, spool, radio, and all of types.

Mike Hutchison's Insulators [by Mike Hutchison, vtunderground@hotmail.com]

insulator collecting in southwest Virginia

Sluggo's Insulator Collecting Homepage [by Doug Netzke, sluggo@cyberbeach.net]

My personal insulator collecting homepage. I am currently concentating on Australian and foreign glass. Lots of reference information and photos on-line. Now featuring an "Insulator of the Month" page. New photos and information being added all the time.

Gill Pollard's Insulator Page [by Gill Pollard, gill@gillpollard.com]

Current projects and insulator info from the Virginia artist Gill Pollard.

Hungarian Insulators Page [by Zoltan Drinoczi, drinoczy@freemail.hu]

Insulator collecting in Europe. On this page are lot of photo from my collection, for the most part European Insulators. On this page are information of European Insulators and list from the European Insulator collectors. I hope lot of Insulator collector will find lot of new friends in Europe. H. I. P.

Porcelain Insulators [by Robert J. Parker, insulatorguy@telus.net]

Here is my collection of porcelain insulators that I hope to identify and sell/trade for glass pieces. If you can identify any of the porcelain pieces for me please email. insulatorguy@mb.sympatico.ca

Insulators in the Old Dominion [by David Hawkins, hokiefan85@hotmail.com]

...or what's left in the Old Dominion! Site includes photos of select pieces of the webmaster's collection, recent hunts and finds, various history, as well as pieces found, or in, the collections of close friends.

Andrew's Virtual Collection [by Andrew Gibson, andrew.gibson@kodak.com]

A presentation of my entire collection. Each insulator is pictured, along with typical catalog information such as when and where it was acquired, color, condition, description and more. There's also a short description of how I started collecting, descriptions of displays I have done over the years, and my want list.

Bill's Insulator Page [by Bill Meier,  bill@insulators.info 

Learn about how I got started collecting, what I specialize in, and view some photos of my collection.

Tim's Insulators Downunder [by Timothy Woods, twoods@westnet.net.au]

Insulator collecting in Western Australia. Features images of Insulators in, or out of service. I also have photographs of my collection.

Insulators: The Hidden Obsession [by Craig Johnson, webmaster@ledmuseum.org]

A website featuring one insulator collector's collection of mostly glass insulators. Includes CD listings, show reports, and lots of photographs of insulators.

Rod & Jo's Insulator Site [by Rod Shelley, rodshell@rodslair.com]

Website devoted to insulator collecting. Photos of some of our collection, collecting stories, and section on building tools for collecting insulators

Deb's Insulator Collecting Site [by Deborah Fiedler, magicmistsams@yahoo.com]

New site by a new collector (as of 3/2002). The main aim of this site is to provide some basic info and tips to those who are new to or interested in collecting insulators. Over time I will continue adding photos of my own collection as well.

Glass Factories that Manufactured Insulators [by David Whitten, drw90459@iglou.com]

Listing of North American glass factories that did, or are believed to have produced, glass insulators for telephone, telegraph and electric power lines. Includes full company names, dates of operation, and other background information of possible interest to collectors of antique insulators, bottles & fruit jars as well as other types of glass. Also includes a list of glassmakers' marks seen embossed on bottles, and information on 19th century Louisville, KY glass factories. This site is new and I will frequently be adding more material, so please check back often! Thank you!

Chris Sistrunk's Insulator Page [by Chris Sistrunk, chrissistrunk@hotmail.com]

Updated 6/6/03!!! Added Cece's page! I will add new pics of my insulator collection soon! Enjoy my page and please e-mail me if you think it can be improved. Happy Collecting!

The Hafer Page [by Greg Hafer, corningpyrex@prodigy.net]

A site with pictures of Corning Pyrex insulators.

SOURCE

All matter is made up of atoms, and atoms are made up of smaller particles. The three main particles making up an atom are the proton, the neutron and the electron.

Electrons spin around the center, or nucleus, of atoms, in the same way the moon spins around the earth. The nucleus is made up of neutrons and protons.

Electrons contain a negative charge, protons a positive charge. Neutrons are neutral -- they have neither a positive nor a negative charge.

There are many different kinds of atoms, one for each type of element. An atom is a single part that makes up an element. There are 118 different known elements that make up every thing! Some elements like oxygen we breathe are essential to life.

Picture of Reddy Kilowatt on 1938 calendar.

Each atom has a specific number of electrons, protons and neutrons. But no matter how many particles an atom has, the number of electrons usually needs to be the same as the number of protons. If the numbers are the same, the atom is called balanced, and it is very stable.

So, if an atom had six protons, it should also have six electrons. The element with six protons and six electrons is called carbon. Carbon is found in abundance in the sun, stars, comets, atmospheres of most planets, and the food we eat. Coal is made of carbon; so are diamonds

Some kinds of atoms have loosely attached electrons. An atom that loses electrons has more protons than electrons and is positively charged. An atom that gains electrons has more negative particles and is negatively charge. A "charged" atom is called an "ion."

[graphic of electons in wire]

Electrons can be made to move from one atom to another. When those electrons move between the atoms, a current of electricity is created. The electrons move from one atom to another in a "flow." One electron is attached and another electron is lost.

This chain is similar to the fire fighter's bucket brigades in olden times. But instead of passing one bucket from the start of the line of people to the other end, each person would have a bucket of water to pour from one bucket to another. The result was a lot of spilled water and not enough water to douse the fire. It is a situation that's very similar to electricity passing along a wire and a circuit. The charge is passed from atom to atom when electricity is "passed."

Scientists and engineers have learned many ways to move electrons off of atoms. That means that when you add up the electrons and protons, you would wind up with one more proton instead of being balanced.

Since all atoms want to be balanced, the atom that has been "unbalanced" will look for a free electron to fill the place of the missing one. We say that this unbalanced atom has a "positive charge" (+) because it has too many protons.

Since it got kicked off, the free electron moves around waiting for an unbalanced atom to give it a home. The free electron charge is negative, and has no proton to balance it out, so we say that it has a "negative charge" (-).

So what do positive and negative charges have to do with electricity?

Where Does the Word 'Electricity' Come From?

Electrons, electricity, electronic and other words that begin with "electr..." all originate from the Greek word "elektor," meaning "beaming sun." In Greek, "elektron" is the word for amber.

Amber is a very pretty goldish brown "stone" that sparkles orange and yellow in sunlight. Amber is actually fossilized tree sap! It's the stuff used in the movie "Jurassic Park." Millions of years ago insects got stuck in the tree sap. Small insects which had bitten the dinosaurs, had blood with DNA from the dinosaurs in the insect's bodies, which were now fossilized in the amber.

Ancient Greeks discovered that amber behaved oddly - like attracting feathers - when rubbed by fur or other objects. They didn't know what it was that caused this phenomenon. But the Greeks had discovered one of the first examples of static electricity (see Chapter 3).

The Latin word, electricus, means to "produce from amber by friction."

So, we get our English word electricity from Greek and Latin words that were about amber.

Scientists and engineers have found several ways to create large numbers of positive atoms and free negative electrons. Since positive atoms want negative electrons so they can be balanced, they have a strong attraction for the electrons. The electrons also want to be part of a balanced atom, so they have a strong attraction to the positive atoms. So, the positive attracts the negative to balance out.

The more positive atoms or negative electrons you have, the stronger the attraction for the other. Since we have both positive and negative charged groups attracted to each other, we call the total attraction "charge."

When electrons move among the atoms of matter, a current of electricity is created. This is what happens in a piece of wire. The electrons are passed from atom to atom, creating an electrical current from one end to other, just like in the picture.

Electricity is conducted through some things better than others do. Its resistance measures how well something conducts electricity. Some things hold their electrons very tightly. Electrons do not move through them very well. These things are called insulators. Rubber, plastic, cloth, glass and dry air are good insulators and have very high resistance.

Other materials have some loosely held electrons, which move through them very easily. These are called conductors. Most metals -- like copper, aluminum or steel -- are good conductors.




Go To Chapter 3: Static Electricity & Resistance

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READ MORE ABOUT IT!

Here are some additional websites to check out.

BrainPop (http://www.brainpop.com/science/electricity/electricity/index.weml)

Brief History of Electricity - Great English website from The-Education-Site.com, which provides information and resource material related to key areas of the UK national educational curriculum.

Danish Museum of Electricity (www.elmus.dk/english/)

Electric Universe (http://csu.electricuniverse.com/html/index.html)

Energy Information Administration - What is electricity? (http://www.eia.doe.gov/kids/energyfacts/sources/electricity.html)

Exploratorium - Science Snacks About Electricity (www.exploratorium.edu/snacks/iconelectricity.html)

Franklin Institute On Line - Electricity (http://sln.fi.edu/franklin/scientst/electric.html)

History of Electricity - Author unknown (http://historia.et.tudelft.nl/wggesch/geschiedenis/electricity/)

Newton's Apple - Electricity (www.pbs.org/ktca/newtons/12/electric.html)

Think Quest - Electricity Online (http://library.thinkquest.org/28032/cgi-bin/psparse.cgi?src=home)

What is Electricity - William J. Beatty (www.amasci.com/miscon/whatis.html)

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