National High Magnetic Field Laboratory
Magnet Academy: Superconductivity 101
An overview of the history, applications and science of superconductivity, including the Meissner effect, BCS theory, Type 1 and Type 2 superconductors and high-temperature superconductivity.
Oak Ridge National Laboratory
Ornl: Teacher's Guide Superconductivity for High School Students
This site from the Human Genome Project provides a large collection of facts and information, demonstrations, experiments and project ideas. Written for teachers but easily adaptable for any type of student work. A good site to check out...
Georgia State University
Georgia State University: Hyper Physics: The Meissner Effect
This site from the Georgia State University provides a good introduction to and illustration of the Meissner Effect, the property of a superconducting material whereby it actively excludes a magnetic field from within its interior.
Wikimedia
Wikipedia: The Meissner Effect
Wikipedia.com offers a wonderful introduction and explanation of the Meissner effect, explaining how this effect qualifies superconduction as a true thermodynamic state of a material.
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: Maglev Trains
Prof. Eric Hellstrom of the lab's Applied Superconductivity Center uses a toy train to demonstrate magnetic levitation, the Meissner Effect and magnetic flux trapping. [6:30]
Other
Colorado Superconductor: The Meissner Effect
This site contains a good conceptual discussion of how Lenz's law affects diamagnetic superconducting materials. Also discusses the Meissner effect and contains a procedure for demonstrating the effect by levitating a magnet over a...
University of Wisconsin
University of Wisconsin: 5 Magnetism
From an online teacher demonstration book. Includes a description and explanation of five demonstrations on a variety of magnetism topics. Interesting and captivating demos.