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golansha
Nov21-04, 01:49 AM
Does anyone know of a substance that can block a magnetic field?
ZapperZ
Nov21-04, 08:30 AM
Does anyone know of a substance that can block a magnetic field?

Look up something called "mu metals".

Caution: there are no practical material (of arbitrary thickness) that can shield magnetic field of arbitrary strength. So your question is rather vague.

Zz.
Dual Op Amp
Nov21-04, 01:55 PM
I've heard of one, I think it started with an I.
Gokul43201
Nov21-04, 11:57 PM
golansha, are you talking about the meissner effect ?
somy
Nov22-04, 12:24 AM
Check the superconductors.
(Not blocking but an interesting effect!)
XMLT
Nov22-04, 03:57 AM
golansha, are you talking about the meissner effect ?

Are you talking about superconductors, Gokul?

XMLT
XMLT
Nov22-04, 04:03 AM
Does anyone know of a substance that can block a magnetic field?

I've found such an interesting question on this website,
http://www.newton.dep.anl.gov/askasci/phy00/phy00508.htm

It is also very helpful for my little knowledge about the magnetic field. So thanks for the question :smile:

XMLT