Passholder magnets are normally in-park pickups. The most recent example was the Kermit the Frog magnet at Mickey Shorts ...

Magnet fishing can often be a risky activity, because you never know what you can find underwater with a giant magnet. Today ...

Every magnet has a north and a south pole, but which is which? Sometimes it matters. If a product one builds features a magnetic closure or other part, the polarity of those magnets should be ...