HMC
Temperature and Magnetism

Curie Point – 5G50.15

Curie Point

- Put a piece of metal near a magnet to show that it is attracted by it.
- Heat the metal with a torch until the metal loses its ferromagnetic property and is not attracted by the magnet when put near it.
- Once cooled, the metal will again be attracted to the magnet.

Location: Galileo F

Video



Meissner Effect (Super Conductivity) – 5G50.50 

Superconduct 

- Place a magnet on warm disk to show how nothing happens, then remove.
- Add liquid nitrogen to the Styrofoam container holding the super-conducting disk.
- When the boiling stops, the disk is cold.
- Use the plastic tweezers to place the magnet on the disk.
- The magnet floats over the disk due to magnetic repulsion.

Location: Jacobs B122 - Shelf 156