The Superconductor Switch

By Amos Zeeberg (Discover Web Editor) | October 10, 2006 6:00 pm

Simple, neat video of the Meissner effect in action.

At the beginning of the movie, the black block just sits there inertly. When the disembodied hand adds liquid nitrogen, the block (possibly yttrium) goes below its critical temperature, becomes superconducting, and expels all magnetic field lines, causing the magnetic chip to levitate. Now if only we had some kind of hover-vehicle using the Meissner effect! Oh wait

NEW ON DISCOVER
OPEN
CITIZEN SCIENCE
ADVERTISEMENT

Discover's Newsletter

Sign up to get the latest science news delivered weekly right to your inbox!

Discoblog

Quirky, funny, and surprising science news from the edge of the known universe.
ADVERTISEMENT

See More

ADVERTISEMENT
Collapse bottom bar
+

Login to your Account

X
E-mail address:
Password:
Remember me
Forgot your password?
No problem. Click here to have it e-mailed to you.

Not Registered Yet?

Register now for FREE. Registration only takes a few minutes to complete. Register now »