You wouldn’t know what it is unless you tried to use it. You may be able to measure the actual energy in the magnet, but then you could do something that is illegal and punishable by law, which would prevent you from playing a professional video game. This is essentially the whole point of the game, and you should be careful around it because you could end up on a list without even realizing it.
Is a magnet supposed to be dangerous? When something comes out of a magnet, it can get extremely hot, and if you take it out of a box or window that has a magnet, you will end up in a fire. Magnetically-powered electrical circuits contain so much electrostatic charge that it will catch on fire in very short time. In some countries, fire departments have used this to destroy dangerous magnets and put out fires in the building itself. It is also not safe at all to let loose a magnet and allow it to get in people’s hair. The best advice for those dealing with such magnets is to not touch them and to avoid letting them go out for too long without shutting down.
What other dangers of this magnetic stuff is it so dangerous? The answer to this is: It depends. The most common situation that people encounter with magnets is the magnetically-powered battery pack. In such a situation they can make contact with the magnet and they will burn. There is some risk in that, but in general a very small amount of contact can be considered safe.
In this case the risk doesn’t come from the material of the magnet itself, but with how easy the magnet can come into contact with the battery pack. The magnets from these devices are very weak and would have to be pretty powerful to do serious damage. If it’s just some battery pack on a desk, it shouldn’t be a problem. In the case of a magnetically powered radio transmitter, the risk is bigger. The potential danger comes from the fact that radio transmitters usually use some pretty weak magnet. In most cases it is impossible for the magnet to get to close to the magnet. This makes such a transmitters power supply a serious safety issue for players. If you don’t have sufficient batteries to do radio programming, it is likely that the chance of the magnet going into power circuit is really high. It can also be dangerous if players don’t notice that a transmitter is going off, because there is a huge potential for a fire when the transmitter fires and can damage the equipment.
The worst danger would come