Can magnets repel dirt and water.?
545160
Magnets can repel only magnetic substances or that are electrically charged. Further there are substances called diamagnetics substances that are weakly repelled by magnets. So if the dirt contains something magnetic or charged they may be repelled. However, water cannot be repelled by magnet.
646659
Only if it is a magnetic white board. Some are, some aren't.
354996
Gee .. been a while.  If I remember correctly the magnetic field is perpendicular to the electrical field.  Thus around the two wires the magnetic fields move in the same direction and combine, producing a net attractive force.\n\nIf the currents go the opposite direction, the forces repel.\n\nSee the link below for a more detailed explanation and pictures:
1123749
Hey there:\n\nInteresting question, because a month ago, i stumbled upon a thrown away harddrive while walking my dog.  I desembled it while I was at home, and found inside it TWO EXTREMELY POWERFULL RARE EARTH MAGNETS.  Also, around on each side of these magnets, was a magnetic shield, that did not allow them to attract from one side, but yes from the other.  If I was you, look for any thrown away harddrive, they all have them, and you will also be getting an extremly powerfull magnet while you are at it.
1010542
By "magnetize" i'm assuming you mean, induce a magnetic field.  Maxwell's equations say that the easiest way to induce a magnetic field is to run a current through the medium.  Therefore, if the water in question is charged (it has a current running though it and doesn't have 0 charge) it should contain a magnetic field.  It is important to note, though, that the field does not belong to the water but the current running through it.
194795
it keeps water away from the contact with the ground
576986
Magnets, dropping it, heat, water/humidity, age.
856860
You would need to have the magnet moving, and the power it would take to make it move would be more than any advantage you get out of it. Laws of Thermodynamics.
1001462
Magnets have no effect on your body whatsoever.  But feel free to fool yourself into thinking they'll do something anyway.  Science doesn't have the answers, turn to pseudoscience.
460879
What your actually thinking of are baffles. These cause the water to travel in a zig zag way or even perpendicular to flow direction. This slows the water by taking its Kinetic Energy and so reduces wear on other structures or machinery
531203
prooly need ifrared thingy\ntry a industrial magnet
1834
They do not pull towards all metal items just ferromagnetic materials such as iron. The phenomenon is due to principle of quantum mechanics. See http://en.wikipedia.org/wiki/Ferromagnetism for more detail.
997877
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
1142672
A few magnets will do the trick.... even a really large scientific one.
466747
touch a metal which is well grounded.
6911
I believe walking around with a heavy metal detctor will help. And there is no repetive movment, so that will help too.
856083
Why do magnets work? \nMagnetism is an invisible force felt within the space around a magnet.  This space, called the magnetic field, can either attract (pull) or repel (push away) other magnets and some types of metal.\n\nAll magnets have two ends (poles).  These poles are opposites and are called the north and south poles.  Opposite poles attract, while like (similar) poles, repel.\n\nThe Earth’s core has its own magnetic field.  Magnetic north and south are near the geographic north and south poles.\n\nNASA has been experimenting with magnetic fluids for over 30 years. Magnetic fluids were made to help put fuel into a rocket engine. NASA was trying to solve the problem. of how to move fuel without gravity.  Tiny pieces of iron were put into the fuel. A magnet pulls the iron and could help get the fuel into the engine.\n\nMagnetic fluids are made by mixing pieces of metal in liquids to make a fluid that is very different from other liquids. It will stick to a magnet and can be directed by magnetic forces. Magnetic fields can shape the fluid, and magnetic fluids can change their thickness. They become hard around magnets.\n\nScientists have tried to use magnetic fluids to solve other problems. They’re used to make better computers. Scientists are still thinking of new ways to use the fluids.\n\nYou may use magnetic fluids!  Some cars have them in their shock absorbers. They are used in some buildings and bridges. The fluids help protect structures from damage from earthquakes or strong winds. There is still a lot to learn about these magnetic fluids. NASA is using the Space Station to learn more about them. They hope to find new ways to use them. \n\nKSNN thanks NASAexplores as a source of information. For more information about this topic and additional teaching resources go to http://www.nasaexplores.com