Is it possible to demagnatize a magnet?
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How to demagnetize materials\nPermanent magnets can be demagnetized in the following ways:\n\nHeat. Heating a magnet past its Curie point will destroy the long range ordering. \nContact. Stroking one magnet with another in random fashion will demagnetize the magnet being stroked, in some cases; some materials have a very high coercive field and cannot be demagnetized with other permanent magnets. \nHammering or jarring. Such activity will destroy the long range ordering within the magnet. \nBeing placed in a solenoid which has an alternating current being passed through it. The alternating current will disrupt the long range ordering, in much the same way that direct current can cause ordering. \nIn an electromagnet, ceasing the flow of current will eliminate the magnetic field. However, a slight field may remain in the core material as a result of hysteresis.\n\n[edit]\nTypes of permanent
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that's sweet here i think is a link for a patent. I was thinking on how to make something like that, accelerating itself but i failed :P another of my questions was proven wrong leading me to the conclusion it is impossible for magnets to be used in mine.\n\nhttp://www.inventhelp.com/contactform_patent.asp?id=106&wcw=overture&GCID=S17330x002&KEYWORD=patent+office&MATCHTYPE=search
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It depends on the size of the magnet and its strength.  Putting an average strength magnet the size of a quarter next to a hard drive kills it.  However, in your laptop the hard drive has additional plastic shielding, but be warned, any magnet over the size of s nickel with one inch of your hard drive will fry it.  Remember that magnets go through plastic, cloth and other metals.
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See if it is attracted to a magnet?
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That's not going to be an easy task.\nIt's not usually done.\n\nEbay has soldering tools, even SMT ones.
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not that quikly. The flux of the magnet would have to flow in the same direction as the battery to assist the flux that is already flowing from negative to positive. That's why batteries go down by themselves. If you cut a hole in a piece of paper the same size as the battery and put the battery half-way in, put some metal filings around it and you can see the magnetic flux I'm talking about.
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The alpha particles have a positive charge. A magnet  would deflect them away from the others.
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I had a magnet that sad it best.\n\nPlease give me the strength to change the things I can and the wisdom to know what things I can't change.
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You need to define "effect".  It also depends on the strength of the magnet, but if you're talking about something like a fridge magnet or something like that it's a very small fraction of an inch before the effect is negligible.
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start here:\nhttp://en.wikipedia.org/wiki/Magnet
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Magnetization of materials\n\nFerromagnetic materials can be magnetized in the following ways:\n\n* Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the earth's magnetic field and which are subject to vibration (e.g. frame of a conveyor) have been shown to acquire significant residual magnetism.\n    \n* Placing the item in a solenoid with a direct current passing through it.\n    \n* Stroking - An existing magnet is moved from one end of the item to the other repeatedly in the same direction.\n    \n* Placing a steel bar in a magnetic field, then heating it to a high temperature and then finally hammering it as it cools. This can be done by laying the magnet in a North-South direction in the Earth's magnetic field. In this case, the magnet is not very strong but the effect is permanent.\nMagnetization of materials\n\nFerromagnetic materials can be magnetized in the following ways:\n\n* Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the earth's magnetic field and which are subject to vibration (e.g. frame of a conveyor) have been shown to acquire significant residual magnetism.\n    \n* Placing the item in a solenoid with a direct current passing through it.\n    \n* Stroking - An existing magnet is moved from one end of the item to the other repeatedly in the same direction.\n    \n* Placing a steel bar in a magnetic field, then heating it to a high temperature and then finally hammering it as it cools. This can be done by laying the magnet in a North-South direction in the Earth's magnetic field. In this case, the magnet is not very strong but the effect is permanent.
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Read Angels and Demons. Although the antimatter making technique is totally impractical, it just might be possible to store the stuff in a hand-grenade sized container. Magnetic suspension has already been done, although it would make a large hand grenade with current technology.\nhttp://www.levitron.com/\n\nA truly perfect vacuum really is impossible, but a near-perfect vacuum could be done. Just as long as you eliminate all the gas molecules floating around, you should be safe enough. http://www.physlink.com/Education/AskExperts/ae290.cfm
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Demagnetizers were used on cassete tape heads to keep the heads from developing "residual magnetism" and slowly erasing your recorded programs each time the tape was played.\nThey were also used on larger reel to reel tapes to blank a tape before recording, they were called bulk erasers.\nEither one will have enough intensity to work on a screwdriver.\nA magnetized screwdriver needs to be de-magnetized if you have any doubts at all.
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Electro-magnets use electricity to temporarily align all of the atoms in a ferrous material to a N-S position. When the electricity is turned off, the atoms return to their original misaligned state, losing much of its magnetivity. It never completely loses all of it, as some atoms will remain in the alligned state, creating a "Gauss" feild around it.
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if you heat them beyond 170 degrees Fahrenheit (80 degrees Celsius) the magnets will quickly loose their magnetic properties. Sustaining these temperatures for a length of time or heating the magnet significantly higher than this will permanently demagnetize it.  \nOther types of magnets such as Samarium-Cobalt have higher heat resistance.  There are also other types of Nd-Fe-B magnets that are not as susceptible to heat induced flux degradation.\n\nAs per wikipedia\nPermanent magnets can be demagnetized in the following ways:\n------------------------------------------------------------\nHeating a magnet past its Curie point will destroy the long range ordering. \nContact through stroking one magnet with another in random fashion will demagnetize the magnet being stroked, in some cases; some materials have a very high coercive field and cannot be demagnetized with other permanent magnets. \nHammering or jarring will destroy the long range ordering within the magnet. \nA magnet being placed in a solenoid which has an alternating current being passed through it will have its long range ordering disrupted, in much the same way that direct current can cause ordering. \nIn an electromagnet, ceasing the flow of current will eliminate the magnetic field. However, a slight field may remain in the core material as a result of hysteresis.
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No, because you might have other forces acting on the object such as magnetic force and gravity.
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I guess it can be magnetized. I don't think there would be any problem even if its in the form of a moebus strip, or any form at all. Anyway I am curious for other answers.