I'm pretty sure its the 'magnetic field'
Iron filings are often used to visualize magnetic fields due to their magnetic properties. When scattered around a magnet, the iron filings align along the magnetic field lines, making the field visible.
The force that surrounds magnetic objects is called a magnetic field. This field is responsible for the attractive and repulsive forces experienced between magnets and magnetic materials.
It most likely means they are attractive and lots of people are drawn to them. Like a magnet.
A magnet always has two faces or 'poles'. One is called north, because it will be attracted to the north pole of the earth if allowed to freely rotate. The other is called south because it will be attracted to the south pole of the earth. The earth itself acts like a magnet. The north pole of the earth actually has a south magnetic polarity and therefore attracts the north pole of a magnet. A compass needle is a magnet in which the arrow that points north has a north magnetic polarity.
That can be gravity, electrostatic force, magnetic force, or strong nuclear force. As you've described it in the question, the only thing you can call it for sure is "mutual force of attraction".
the area of magnetic force around a magnet is called the magnetic field
Magnetic field lines. These lines represent the direction in which a small north magnetic pole would tend to move if placed at any given point in the field.
A magnetic crane.
A temporary magnet is a magnet that only retains its magnetism for a limited period before losing its magnetic properties.
Iron filings are often used to visualize magnetic fields due to their magnetic properties. When scattered around a magnet, the iron filings align along the magnetic field lines, making the field visible.
The force that surrounds magnetic objects is called a magnetic field. This field is responsible for the attractive and repulsive forces experienced between magnets and magnetic materials.
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
When we begin to study magnetism, we find that the questions pile up faster than the answers. The force of magnetism is a part of one force that we call the electromagnetic force. The electromagnetic force is, with gravity and the strong and weak nuclear forces, one of the four fundamental forces in the universe. Magnetism is the result of the uniform motion of electrically charged particles, and it cannot exist without them. When any charged particle moves, it creates a magnetic field around its path of travel. Always. It's like a little "magnetic tunnel" that forms around it when the charge moves. And the polarity of the field will be around the path of travel clockwise or anticlockwise, depending on which way you're looking at it, and what the polarity of the charge is. For an electron, the common unit of "electricity" we see every day, the field will be clockwise around the electron if you view it coming at you. Take your left hand and stick your thumb out like you're hitchhiking, and leave the rest of your fingers curled up. The thumb points in the direction of the electron's travel, and the fingers curl in the direction that the magnetic field wraps around the path of travel. Hold your hand in the manner suggested and look at your thumb with your thumb pointed at you. See your curled fingers? That's the polarity of the magnetic field. Left hand rule, simple and easy. Now we'll expand that. Simply stated, in a magnet, there is "uniform motion" associated with electrons. Enough electrons are orbiting atomic nuclei and moving in the same direction at the same instant of time that an "overall" magnetic field is created. We say that the magnetic domains within the magnetic material are aligned, and there will be a magnetic field around the object with those aligned magnetic domains. This differentiates "regular" material from magnetic material. Electrons are always in motion around atoms in all material, and they create magnetic fields all the time. But it's "random" motion, and the fields are all "jumbled" in there. A bar magnet is ferromagnetic material that has had its magnetic domains aligned. The alignment of the magnetic fields gives the bar magnet its magnetic properties. The bottom line here is that the uniformly moving electrons create the magnetic field. That's why we call the phenomenon the electromagnetic force. Not the electric force, and not the magnetic force, but the electromagnetic force. The electric and magnetic forces come as a set; you get all or none.
The magnet's poles( north and south) easily attracts eachother. They can attract magnets at a distance invisibly, through what we call a magnetic field. It can act a distance. It causes a pulling and pusing force on other magnets. When you move the magnet close to a object for example a nail, it will jump and pull itself to stick with the magnet.
"http://wiki.answers.com/Q/How_are_a_magnets_magnetic_force_and_magnetic_field_different"
A magnet aligns itself along the earth's magnetic field, with its north pole pointing to a location called 'Magnetic North', so called to distinguish it from 'True North'. The magnetic polarity of the location we call 'Magnetic North' is south.
It most likely means they are attractive and lots of people are drawn to them. Like a magnet.