Facts about Magnets

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ritza well it helped me i dont knw why y im doing this fukin thing 2/12/2012
Dig Bick One of the first natural forces that humans discovered was most possibly magnetism, although it has been relatively recently that the full potential of the properties of magnetic substances have been realized. Devices using semiconductor technology which are so common these days could not be used without their magnetic components. The earliest magnets were referred to as lodestone or magnetite. Given below are some more fascinating facts about magnets.

A story goes that a shepherd from Crete named Magnes was the first to discover lodestone when his crook, which had an iron tip, was pulled towards a stone when he passed over it.

According to another story, Archimedes, the scientist of ancient Greece, is supposed to have pulled the nails out of enemy ships by using lodestone, which resulted in them sinking.

In the past, lodestone was used by sailors as an aid to navigation. They had discovered that when they suspended a piece of magnetite by a thread, it always pointed in a north-south direction.

All physical objects are made up of molecules, and the molecules of steel and iron have magnetic properties. According to the molecular theory of magnetism, all the molecules are aligned with their North Pole pointing in one direction and South Pole pointing in the opposite direction in a magnetized piece of steel or iron. Whereas, in a piece of steel or iron that is unmagnetized, the poles of the molecules point at various directions at random.

Magnets are of two main types: Permanent Magnets and Induced Magnets. Substances that are permanently magnetized are known as permanent magnets. Whereas, induced magnets are those that become temporarily magnetized when brought into proximity with a permanent magnet. For example, if you use a magnet to pick up a pin, the pin too will become magnetized and be able to pick up another pin. However, once the permanent magnet is removed, the pins lose their magnetic properties.

Each end of a piece of magnet is referred to as a pole, and the magnetism of each magnet is concentrated in its poles.

When the North Pole of one magnet is brought close to the South Pole of another magnet, they attract each other. Whereas if you bring a South Pole of one magnet close to the South Pole of another, or the North Pole near the North Pole of another, they repel each other.

Usually, magnets are made of steel or iron. However, special alloys of iron, nickel, copper, cobalt, and aluminum can be made into powerful magnets.

Hammering and heating a piece of steel or iron in a north to south direction can magnetize it. This is because the molecules get aligned in a north-south direction.

When an unmagnetized piece of steel or iron is rubbed with a magnet in a north to south direction, it gets magnetized. This is because the molecules get aligned in a north-south direction.

When an unmagnetized piece of steel or iron is placed beside a magnet, it becomes magnetized. This is because the molecules get aligned in a north-south direction.

Since the Earth itself acts as a huge bar magnet, having a magnetic north pole and south pole, when a piece of unmagnetized material is placed in a north to south direction, it results in magnetizing it due to the magnetic field of the Earth. This is because the molecules get aligned in a north-south direction.

Hammering a magnet can result in demagnetizing it because the molecules lose their north-south alignment and get arranged with their poles placed randomly in various directions.

When a magnet is heated in a hot flame, it will result in demagnetizing it because the molecules lose their north-south alignment and get arranged with their poles placed randomly in various directions.

An electromagnet is created when a piece of iron is coiled with a wire and electricity is passed through the coiled wire. This magnetizes the iron bar as long as the current is switched on, on switching off the electricity, it gets demagnetized.		 2/1/2012
junna nice ! 12/13/2011
Spencer This was helpful! 12/9/2011
Elizabeth I love this the facts were great to my dauter's research paper! 11/16/2011
L.N.T Bunyaz's some of these facts are real and the are trully interest in one of them 9/25/2011
krys
good facts ere		 5/13/2011
nike Joel likes pearl 5/6/2011
Alex I NEED HELP with magnets 5/6/2011
sassy would you people get on here who discovered the first magnets!
that would make my oral presentation be much much better!		 4/25/2011
mike wow 4/4/2011
Eric R. Dennis Got a 100a+ on the test Lobe it again. sorry for so much from my words. 3/10/2011
Eric Ryan D. Love it very much thanks 3/10/2011
Eric R. Dennis Thanks I passed the test because of these sentences. I am in 3grade and then 9 years old and passed. Good job Rita Putatunda and love this awesome and thanks. The reusing why is because my teacher did not give us a study guide Love it. Bye keep up the good work! 3/10/2011
Mr. Awesome Wazzup?... Wasabi 3/10/2011
Jeremiah This actually gave me a lot info. 2/25/2011
dogg i think its who cares though! 2/18/2011
ven im the best 2/17/2011
sean very useful 2/17/2011
antonio its cool 2/15/2011
elizabeth great helped me out in my school project a lot :DDD 2/1/2011
danielle iris blah blah blah blah mow mow mow mow mow mow i love you... jonluc harris 1/10/2011
jesquezbrown i think this article was a good scource of information 1/5/2011
Bryan How could you use magnetic force to create energy? 12/12/2010
Bryan Do magnets lose their strength? 12/12/2010
ann in hawii it helped me a lote in shcoool thanckes a lote 12/8/2010
caleb it was alright 11/23/2010
Magali Terry It is interesting 11/12/2010
Melanie Thomas Interesting facts about magnets. 11/11/2010
E. Malone This article gave me information and ideas that I can use with my students. 11/11/2010
Ashton E. I feel that this article is very informative. 11/10/2010
meri mullicane Very imformative and simple to understand. 10/28/2010
Crystal P This is great for a review! Using it tomorrow. 10/26/2010
Karen j Interesting 10/24/2010
Sandra L. Clearly but simply put into words that can help a teacher share with even a young child. 10/24/2010
Fabiola Hagan Magnets, magnetic, etc, are found in many objects that helps man do all types of work. Magnetism is found in many electric objects since electromagnetism is created when a piece of iron is coiled with a wire and electricity goes through the coiled wire. 10/21/2010
akasugermamma thank you for the info.:} 9/30/2010
akasugermamma this was too bad 9/30/2010
alona its really hard studying about magnet,i cant understand... 9/13/2010
Jessica I think that this would be a good article for a school project! thanks :) 8/23/2010
magnet awe some! this will definitely give me good grades! ^_^ 7/18/2010
clariejean good! 6/9/2010
leezy yeah ! this website is off da chain i love it. it helps me with my homeowork and i get really good grades. but, i agree with lucy we need just a little bit more imformation then we will be okay :) 4/15/2010
lucy i think that we need to know a lot more imformation about magnets . this right here is not enough for me i can tell you the truth right now 4/15/2010
Elisha i like this website! it helps me with my science project. 4/8/2010
tuesday hi this website is so coollllll 3/23/2010
crustymonkey this website was probably made by monkeys that like science. we alredy learned this stuff in pre school 3/15/2010
crustymonkey hi friends of the science world! 3/15/2010
Nicola Cabot i got 100/100 in my physics assignment...thanks to this article... thnks a lot article... :) 2/9/2010
bipasha its nice information 2/9/2010
emily very helpful article! thank you, this really helped my science fair project! 1/10/2010
taytay this was a great passage i ah only a preteen and used this website to complete science homework. it really gave me enough facts and links to write a paper i know now that i can use this website whenever i need research on a specific object. i hope a lot of people use this website too! 1/5/2010
kianna Can all magnets stick to metals 12/16/2009
jose yhis is cool 12/15/2009
henry this site is so very helpful 11/20/2009
cody thats cool 10/22/2009
selena what 4/28/2009
carole This helped me alot with my science fair project!:D

THANK YOU;D		 4/26/2009
lillyflower I already kanow all this!:-D 4/5/2009
Layla-smarty27 Magnets are so fun! Thanks for teaching me more about them!:-D 4/5/2009
Layla Tuie i think you have an AMAZING site!:-D 4/5/2009
flower-girl magnets are magical! 3/2/2009
Abi These are very useful facts. THANK YOU! 2/24/2009
Anamrie this onley has one fact 2/16/2009
Majy Ilove It 2/16/2009
me me me me weired not good no facts and has nothing i can look for 1/27/2009
Raya How did you get all those facts? 1/27/2009
callie horrible 1/25/2009
taniya excellent 1/25/2009
Mackenzie I think that was totally awsome 1/5/2009
Mackenzie I think that it was so good that i am going to use this for my science project because i have to go to a web site and find facts about magnets so thank you for the great idea. 1/5/2009
rachel i think this is really good for maah science projects research paper. thanks! 11/30/2008
raging science your info is good but are they fakies 'cause you mentioned that hammering i used to magnetize and demangtentize the objects 10/21/2008
saalyy heyy .. ii aam leaariin about magnets in sciiencee ,, aan ii thiink thiis iis a good websiitee :D 10/9/2008
Like it matters this was realy helpful for my homework 5/4/2008
ethopia there kind really cool 5/1/2008
Tobby who discovered magnets? 4/24/2008
abcdefghijklmno GREAT!!!! 3/3/2008
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