WHAT ARE MAGNET KEEPERS? A magnet keeper, is a bar made from iron or steel. They are placed across the poles of a permanent magnet to help preserve the strength and close the magnetic circuit, which stops any external metal being attracted to the magnet. We use them as a safety function for when we send out our magnets in the post. Due to keepers being used to close a circuit they can be fiddly to remove, with this in mind we have created some videos to show you how... Read More
Over the next couple of weeks, our experts will be revealing their favourite magnets and the reasons why they rate them so highly. We will see everything from magnetic gifts and games to solution based magnetic applications that can be used by yourself in everyday life!
In this article, we are going to show you how you can create the simplest (possibly), but by far the most awesome (definitely) DIY electric train by using nothing more than a battery, some bare copper wire and two magnets. Before you stand aghast in disbelief and tell us it can’t be done, make sure you check our article on how to make a basic electric motor with almost identical materials.
At first4magnets, we recently got hold of some super slow motion cameras. Naturally. after having fun using them to film large neodymium magnets squashing things in 2000 frames per second, we thought it would be interesting to shoot a permanent magnet Gauss rifle in slow motion and explain how one works…