Iron which is brought near a spiral of copper wire, traversed by an electrical current, becomes magnetic, and then attracts other pieces of iron, or a suitably placed steel magnet. ↗
The biggest problems were to do with... well, to get that successful when you're so young, it attracts hangers-on, parasites, people who want to feed off you. ↗
Macbeth is a very popular play with audiences. If you want to sell out a theater, just mount a production of Macbeth. It's a short play, it's an exciting play, it's easy to understand, and it attracts great acting. ↗