A large (2") or medium (1") NIB magnet is held in suspension above a superconducting disc cooled with liquid nitrogen. This would work well alongside the Soft Landing demonstration. Use the large superconducting puck if using the large NIB and the small semiconducting puck if using the medium NIB. The webcam may be useful to show the NIB is indeed suspended above the puck. 

CAUTION: the magnets are extremely strong and brittle! Keep away from ALL other ferromagnetic materials, magnetic storage devices, and place back in their respective containers when finished. 

The superconducting pucks must be dried thoroughly after use OR placed back in the LN until after the demonstration/lecture and dried afterward. Place superconducting pucks back into their air-tight container with silica gel immediately after drying. DO NOT DROP NIB ONTO SUPERCONDUCTING PUCKS.

Note: Liquid oxygen is corrosive to an uncoated NIB. Demonstrate how to "place" the NIB onto the superconducting puck. 

To see the Meissner Effect, you need a superconducting disk that is not housed in a protective case.

Medium NIB "levitating" above the small semiconductor puck

1" NIB suspended above small semicondutor puck. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2" NIB suspended above large semicondutor puck.

2" NIB suspended above small semicondutor puck

 

 

 

 

 

 

 

 

 

 

 

 

Additional items to be included in demonstration.