by keeping another magnet or attractive force
Not exactly. All pieces of the magnet retain their ferrous properties, but if they were (for example) dropped, then the shock of the fall could potentially make them lose a bit of magnetism. Extreme temperature changes and high power electric discharges could also decrease the power of the magnet.
heat
If you put a magnet with the same poles attracted to each other it will repel. Repel- is the opposite of attract Or if you're a Pokémon fan: "The young trainer went to Mt. Moon without any repel and had to fight bunches of Zubat". :p
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current ceases. Take a look at this Wikipedia page for more information: http://en.wikipedia.org/wiki/Electromagnet
You could use a magnet to separate a collection of metal objects from a tomb. Iron object and other ferrous metals will stick to the magnet while some other types of metals will not.
By using magnet at bottom
Idek
You could use compressed air to move an object you are not touching. You could also put an object on a table and lift one edge of the table which would cause the object to move. You could also use more complex means, such as magnets. Of course you could tie a rope around an object and pull it and you’d be moving it without touching it.
Touching a person without their permission is considered a violation of personal boundaries and could be seen as physical assault or harassment. It is important to always respect someone's personal space and boundaries.
Could be a problem inside the steering column
You could blow on the water, causing it to spill out of the glass. Alternatively, you could tilt the table slightly to pour out the water without physically touching the glass or the table.
Yes, a magnet would remove the iron filings without attracting the copper salts, copper salts are not magnetic.
The magnet by itself would not kill you. However... If the magnet was sharp or pointy it could cut or perforate your digestive tract, which could kill you. If the magnet was too large to pass through your digestive tract it could cause a fatal obsruction. If the magnet was coated with a toxic substance, that substance could kill you.
You could use another magnet with marked poles to determine the poles of the unmarked magnet. By observing how the unmarked magnet interacts with the marked magnet, you can identify the north and south poles of the unmarked magnet based on attraction and repulsion.
it need to rotate so you could go in any direction
it depend on the strength of magnet. if i had a gauss measurement i could tell you.
A superconductor