Yes, people can see magnets repel because apparently, the just won't connect
I don't know of any websites that appraise magnets, you could try to take them to an antique store. The best bet would be to list them on ebay with a reserve price and see what you can get for them.
fridge magnets speakers tv
magnetic? metal sticky?
polar things that can attract iron
The magnetic field lines from the two magnets would repel each other, causing the field lines to spread out in all directions. This would create a distorted and chaotic pattern of field lines near the magnets.
STAPLES (TM) and WHSmith also you can get magnets from IKEA
No, why would magnets give you cancer?
there would be no magnetation
Heck yes, with out magnets we would not have to North or South pole. If we did not have those the earth would have no magnetic pull to it. The north and South pole are like 2 giant magnets pulling all the little magnets one way so they stick on your fridge!
Every machine with a motor has a magnet. If you plug it in, it has a magnet. If you put in batteries or recharge it, it has a magnet. An automatic pencil sharpener uses magnets. A computer printer uses magnets. A refrigerator motor uses magnets. An electric razor uses magnets. A fan uses magnets. Hair cutters use magnets. Nose clippers use magnets. Look around your room and see what else uses a motor.
The strongest known magnets are called magnetars, a sub-type of a neutron stars. If a human would approach such a magnetar within a thousand kilometers, the strong magnetic field would kill him.