2007-05-23 14:03:50 · 5 answers · asked by nasima 1 in Science & Mathematics ➔ Engineering
There is no known material that will effectively block a magnetic field - magnetic shields, for instance, merely concentrate the field lines within the magnetic material but any attraction will still exist between the two magnets as well as an attraction to the shield.
If such a material were to be found, permanent magnet motors with no external input of power would soon follow.
The elusive perpetual motion machine?
2007-05-23 15:40:49 · answer #1 · answered by LeAnne 7 · 0⤊ 0⤋
Another magnet placed with its poles correctly aligned between the other two magnets will repel the other two magnets. For example, if the north pole of magnet 1 is being attracted to the south pole of magnet 2, then magnet 3 can be placed between the two with its nort pole facing the north pole of magnet 1 and is south pole facing the south pole of magnet 2, thus both magnets will be repelled.
2007-05-23 21:39:34 · answer #2 · answered by goober_head_13 3 · 0⤊ 0⤋
Aluminum
2007-05-23 21:53:12 · answer #3 · answered by Matt D 6 · 0⤊ 1⤋
Try glass.
2007-05-24 03:23:24 · answer #4 · answered by Anonymous · 0⤊ 1⤋
lead or carbide
2007-05-23 23:52:39 · answer #5 · answered by Jesse C 1 · 0⤊ 1⤋