National High Magnetic Field Laboratory
Magnet Academy: Joseph Henry
Joseph Henry was an American scientist who pioneered the construction of strong, practical electromagnets and built one of the first electromagnetic motors. During his experiments with electromagnetism, Henry discovered the property of...
National High Magnetic Field Laboratory
Magnet Academy: Georg Ohm
Georg Simon Ohm had humble roots and struggled financially throughout most of his life, but the German physicist is well known today for his formulation of a law, termed Ohm's law, describing the mathematical relationship between...
Wikimedia
Wikipedia: Magnet
Wikipedia.com provides an excellent introductory site on magnets. Including basic information describing different types of magnets and their characteristics.
National High Magnetic Field Laboratory
Magnet Academy: Arc Lamp
Invented decades before it could be used, the first type of electric light was so brilliant it was used for lighthouses and street lamps.
National High Magnetic Field Laboratory
Magnet Academy: Edward Purcell
Edward Mills Purcell was an American physicist who received half of the 1952 Nobel Prize for Physics for his development of a new method of ascertaining the magnetic properties of atomic nuclei. Known as nuclear magnetic resonance...
![Discovery Education: Build Your Own Perpetual Motion Machine [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Discovery Education: Build Your Own Perpetual Motion Machine [Pdf] Lesson Plan")
Discovery Education
Discovery Education: Build Your Own Perpetual Motion Machine [Pdf]
A lesson for learners to explore the conversion of energy from electrical energy to kinetic energy by constructing a homopolar motor. Also by constructing the motor, students can investigate magnetism, electricity, and RPM.
National High Magnetic Field Laboratory
Magnet Academy: Magnetic Core Memory 1949
At the dawn of the computer age, magnetic core memory helped make data storage possible, and showed surprising staying power in a field where components are constantly being replaced by new and improved products.
National High Magnetic Field Laboratory
Magnet Academy: Isidor Isaac Rabi
Isidor Isaac Rabi won the Nobel Prize in Physics in 1944 for his development of a technique for measuring the magnetic characteristics of atomic nuclei. Rabi's technique was based on the resonance principle first described by Irish...
National High Magnetic Field Laboratory
Magnet Academy: Induced Current
A current can be induced in a conducting loop if it is exposed to a changing magnetic field. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Maglev Trains 1984
The railroad industry began in the frontier days, magnetic levitation has moved it squarely into the space age.
National High Magnetic Field Laboratory
Magnet Academy: Anders Celsius
Anders Celsius is most familiar as the inventor of the temperature scale that bears his name. The Swedish astronomer, however, also is notable as the first person to make a connection between the radiant atmospheric phenomenon known as...
National High Magnetic Field Laboratory
Magnet Academy: Oersted Satellite, 1999
Named in honor of Danish physicist Hans Christian Oersted, Denmark's first satellite has been observing and mapping the magnetic field of the Earth.
National High Magnetic Field Laboratory
Magnet Academy: Walther Meissner
Walther Meissner discovered while working with Robert Ochsenfeld that superconductors expel relatively weak magnetic fields from their interior and are strongly diamagnetic. This phenomenon, commonly known as the Meissner effect or the...
National High Magnetic Field Laboratory
Magnet Academy: John Ambrose Fleming
John Ambrose Fleming was an electronics pioneer who invented the oscillation valve, or vacuum tube, a device that would help make radios, televisions, telephones and even early electronic computers possible. A brilliant innovator,...
Sophia Learning
Sophia: Electric Circuits: Lesson 3
This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 3 of 4 in the series titled "Electric Circuits."
National High Magnetic Field Laboratory
Magnet Academy: Electromagnetic Induction
In 1831, Michael Faraday carried out numerous experiments to prove that electricity could be generated from magnetism. He not only demonstrated electromagnetic induction, but also developed a good conception of the processes involved....
South Carolina Educational Television
Know It All: Understanding Electricity | Nasa Online
If you want to understand electricity, you first need to know a little about matter, atoms and electrons.
Cosmo Learning
Cosmo Learning: Applied Science and Technology 210: Electrical Engineering
A collection of video lectures from a course that explores the application of electrical engineering topics. Webpage includes twenty-eight lectures from a professor at the University of California, Berkeley. Lectures vary in length and...
National High Magnetic Field Laboratory
Magnet Academy: Kelvin Water Dropper
The legendary Lord Kelvin made electricity from water with this ingenious electrostatic generator. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Inductive Reactance
Like resistance, reactance slows an electrical current down. Explained by Lenz's Law, this phenomenon occurs only in AC circuits. (Java tutorial)
Science Buddies
Science Buddies: Abracadabra! Levitating With Eddy Currents!
Did you know that not all trains run on tracks? Some of the world's fastest trains are magnetic levitation trains (maglev). This means that the carriage of the train is suspended over the rails with no support, but only with magnetic...
Florida State University
Florida State University: Inductance
This article surveys inductance and its different forms. It discusses numerous topics associated with inductance such as Faraday's Law, self and mutual inductance, inductors, and magnetic field lines.
University of Wisconsin
The Why Files: Got a Jones for Indiana Jones?
Archeologists use radar, magnetic, electrical sensors to see through the ground, find where to dig, sonar, ground-penetrating radar.
Georgia State University
Georgia State University: Hyper Physics: Potential Energy
This site from Georgia State University Physics Department defines and explains the concept of potential energy. Using equations and graphics to illustrate the idea, it discusses the many types of potential energy (gravitational,...
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