2007-01-11 02:42:17 · 4 answers · asked by green_womble 1 in Science & Mathematics ➔ Engineering
not in your lifetime. or in your kids either. or your grand kids for that matter. there is a reason they are called permanent magnets.
2007-01-11 02:53:31 · answer #1 · answered by trevelan7 2 · 0⤊ 0⤋
The magnets likely have a half- shelf life of several hundred years - barring any negative, unusual, external forces acting upon them.
2007-01-13 05:37:11 · answer #2 · answered by ericscribener 7 · 0⤊ 0⤋
yes permanent magnets do die out after sometime...........but that 'sometime' goes into years if kept in that position strictly....though this magnetism can be killed by simply hammerin them....but then who does that to windmill magnets....
2007-01-11 11:07:56 · answer #3 · answered by da_frost_god 1 · 0⤊ 0⤋
Pretty rubbish permanent magnets if they do, eh?
2007-01-11 10:48:49 · answer #4 · answered by Rachael 1 · 0⤊ 1⤋