If I lay one of these signs on top of another upside down sign, why dont they repel each other
You will get more if you sell it to a plumber, but make sure you cut the pipes without bending them, but if you cannot do that then you can sell it to a scrap yard for about $2.00 a pound in my city here in Knoxville, TN., but most yards here required a contractor licensed person to sell such materials.
1 dollar to 1 Million dollars
For the best answers, search on this site shorturl.im/awnfX Contact a recycling center. The wiring is worth more without the plastic coating on the outside of it. Be cautious how you remove it; recently a fire in Brooklyn was caused by someone burning the plastic coating off of copper wire which was the biggest fire in the past 10 years aside from 9/11.
This phenomenon occurs with all magnets. In a simplistic approach the reason has similarities to that of electrostatics. Namely that like charges repel and opposite charges attract. Well, in the mangets case there are physically no such thing as magnetic charge, instead all magnets have a North and South pole. If you bring a North pole of one magnet towards a north pole of another magnet they will repel eachother (Same goes for south pole with south pole). NOTE: I am using the north and south terminology but that may not be the correct term To make this point clearAll magnets have a north and south pole. Even if you break the magnet in half the individual pieces will have a north and south pole. The car magnets have a north and south pole. You simply brought a north pole of one magnet towards the north pole of the other.
The magnetic material in the thin rubber that makes the flexible magnets to hold the sign is not organized into large magnetic fields that can oppose each other, but forms many small magnetic domains that can cling (weakly) to the metal. If you were to put a piece of paper on the magnet strip and sprinkle iron filings, instead of nice loops from one pole to another as with a bar or horseshoe, you would have to look closely to see small fields. So when you put two signs together, the chances of the domains matching enough to repel are very small.
