This website uses cookies to ensure you have the best experience. Learn more

Levitation With Magnets Essay

1077 words - 5 pages

There are a few reasons why I did my science fair project on diamagnetism. The purpose of my experiment was to attempt to get two diamagnetic materials to levitate above an arrangement of magnets. I have seen many videos demonstrating diamagnetic levitation and wanted to find out if it was possible. I also saw several videos on diamagnetic levitation and wanted to see if it was actually possible and wanted to do my project on a topic that I was unfamiliar with. I decided to use pyrolytic graphite and bismuth because they are both known for their diamagnetic properties.
The discovery of magnets starts with the elderly Cretan shepherd named Magnes around 4,000 years ago. The account goes that as he was herding his sheep in an area of Greece called Magnesia when he suddenly discovered that the metal tip of his staff and the nails in his shoes became firmly stuck to the ground. He dug up the the dirt and discovered lodestones which contain magnetite. The rock magnetite was then named after either Magnes or Magnesia. The Greek philosopher Thales also mentioned the magnetic properties of lodestones in around 500 BC.
The history of magnetic levitation starts around 1842 when a British mathematician named Samuel Earnshaw proved that there was no possible way to levitate a magnet solely using other fixed magnets in his theory called Earnshaw’s Theorem. His theory does not, however, apply to diamagnetic materials. So with the addition of diamagnetic materials, however, makes levitation possible. His studies showed that while the suspended magnet was vertically stable, it was not horizontally stable, and would fall off one side.
All materials are diamagnetic, although most of the time they show this property so weakly that they are not considered to be diamagnetic. A material that is diamagnetic is very weakly repelled by magnets. Some materials are paramagnetic, which means they are slightly attracted to magnets. Some materials are ferromagnetic, which means they are regularly attracted to magnets. The paramagnetic effect is much stronger than the diamagnetic effect. Objects that are ferromagnetic were once considered to be very strongly paramagnetic until it was discovered that ferromagnets contained a property that was absent in paramagnets. There are other types of magnetism but these are the main three.
Diamagnetic materials are often very weakly effected by magnets and only some of the more diamagnetic materials can be used for levitation. The effects that the magnets will have on the material depends on the material’s level of diamagnetic properties, the weight of the material, and on the strength of the magnet itself. Only magnets that are extremely powerful will have a noticeable effect on diamagnetic materials. The material must be smaller than the magnets for it to stay in place and the magnets must have their polar end facing toward the material.
I hypothesize, if I place a strongly diamagnetic material over a set of magnets with...

Find Another Essay On Levitation with Magnets

Maglevs - Magnetic Levitation Essay

1927 words - 8 pages locomotives.More recently, in the 1960s and early 1970s, considerable interest developed in the possibility of building trains that could travel notably faster than conventional trains. "From the 1970s, interest in an alternative high-speed technology centred on magnetic levitation, or maglev" (Internet 7), although the concept of using magnets to float trains and have them fired down a track has been around for 80 years. In 1922, a German engineer called

21st century Maglev Trains Essay

2282 words - 10 pages eliminates friction. This is magnetic levitation or maglev for short. Maglev trains can do many of things that benefits society, including faster transportation speeds. Maglev trains can do many good things, and it all started centuries ago. History Magnetic levitation uses magnets with the same charge that repel each other to make one of the magnets float. This is the basic concept that John Mitchell came up with in 1750. He saw that the repulsive

Review Of Literature

1167 words - 5 pages with no electromagnets we can't perform simple tasks like ring doorbells. Works Cited Brain, M., & Loper, L. (2000, April 1). How Electromagnets Work. HowStuffWorks. Retrieved October 31, 2013, from Electro Magnets. (n.d.). Electro Magnet – Retrieved October 29, 2013, from Engineers' and buyers' choicefor finding trusted

Magnetic Levitation and Propulsion through Synchronous Linear Motors

3987 words - 16 pages :// The Japanese are investigating an entirely different design involving superconducting magnets to generate huge repulsive forces which levitate the train. However, their MLU002N is still in experimental stages. For more information, check out With a little stretching, the average physics student should be able to comprehend the principles of magnetic levitation and

Application and History of Magnetic Monopoles

741 words - 3 pages repel each other like magnets. However, this would be used to build a true magnetic levitation railway (Sandberg). It would work by “placing sheets of similar monopoles under the train and on the tracks. Propulsion would be done by angling the sheets, which would accelerate or decelerate the train” (Sandberg). If implemented, will be of great economic, environmental, and safety benefits (Powell and Gordon). A magnetic monopole train can reduce

Active vs. Passive Magnetic Bearings

1890 words - 8 pages Introduction A magnetic bearing is a type of bearing that holds up a load using magnetic levitation. Scientists first discovered the magnetic effects in magnetic minerals in 500B.C. In the late 20th century, scientists began developing ways where this magnetic effect could be implemented into a bearing, creating magnetic bearings. Today, magnetic bearings can be found in many applications where no physical contact is required or extreme

How could magnetically levitated trains relieve the problems of efficiency, safety, and ecology associated with the conventional trains and airplanes?

2588 words - 11 pages trains could enhance present challenges of traditional transport. First, the essay is going to discuss the problems that are caused by traditional transport, next, it will provide data regarding magnetic levitation technology brief overview, and, then, it is going to suggest several factors that contribute to the improvement of the challenges linked with the conventional transportation by focusing on efficiency, safety and ecological impact

Information Necessity

847 words - 4 pages my Hot Wheels toy cars to a state of levitation to using tooth-picks and garbage-ties to build diagrams and sculptures; I wanted to figure out how things work. Growing up in an environment largely composed of athletes and rappers, either you fall in line or be targeted. It became obvious that to be isolated was even more damaging than to fit in and conform. Meanwhile, as I grew more and more comfortable with computers, I came to realize that


1496 words - 6 pages levitated train and magnetically propelled ships. First, the magnetically levitated train, a fairly simple but brilliant concept. That train can reach great speeds since it had no friction with it's track. The guideway has thousands of electromagnets for levitation set in the floor along the way. More electromagnets for propulsion are set on the sides of the U-shaped track. The superconducting magnets on the train have the same polarity of the


1502 words - 6 pages no friction with it'strack. The guideway has thousands of electromagnets for levitation set in thefloor along the way. More electromagnets for propulsion are set on the sidesof the U-shaped track. The superconducting magnets on the train have thesame polarity of the electromagnets of the track, so they push against eachother and make the train float about 4 inches above ground. The interestingconcept comes with propulsion. The operator sends and

Maglev Trains for the Future

1443 words - 6 pages , electromagnetic suspension. The EMS requires large amounts of energy, tracks lined with metal coils, and large magnets which are attached to the bottom of the train in order to help guide it. These large magnets replace the wheels and are what helps the train to levitate without flying of the tracks. The EMS will first create a magnetic field, and then produces a magnetic field which causes the train to go up. Then they make a magnetic wave within

Similar Essays

This Essay Is On Magneticly Levitated Trains.... It Explains Basicly How They Work As Well As How They Have A Future In Transportation Because They Are Very Efficiant

880 words - 4 pages IntroductionThe future of transportation lies with the Magnetically Levitated, or "MagLev," train. It combines all the benefits of an airplane and the benefits of trains to produce a "Flying Train" (2)"MagLev technology was pioneered on Long Island New York in the 1960's by two Brookhaven National Laboratory scientists, James Powell and Gordon Danby... who used super conducting magnets for MagLev trains (9)." It is a project that has since been

Magnetic Fuel Essay

823 words - 4 pages The future is thought to be a world full of the impossible. Flying cars and skateboards overwhelm the skies while immortal robots and machines dominate below. However, some scientists and skeptics deem this impossible while others have no clue where to start. People have tried the skies and seas for fuel and energy, but they never payed attention to an object they have been playing with since their childhood: Magnets. Magnets have mysterious

Maglev Trains And The Technology Behind Them

5084 words - 20 pages . ---------------------------------------------------------------------- The principle of a Maglev (Magnetic Levitation) train is that it floats on a magnetic field and is propelled by a linear induction motor. They follow guidance tracks with magnets and have been seen to have great potential in the transport world. [IMAGE]An example of a maglev train from Simple Theory A maglev train will float about 10mm

Maglev Train Essay

4361 words - 17 pages that the guideway has to be built with superconducting magnets in the wall. The guideway guides the train in the right direction and holds all the weight of the train. The train has magnets on the chassis to cause it to levitate. The train also holds batteries, brake system and levitation control system. The power supply powers the magnets in the guideway that push on the magnets on the train’s chassis, causing it to levitate. Aerodynamics can