So I played around with the red rock and here’s what I discovered:
- When you hit it, it releases a spark from the place you hit it to the far other end.
- If you have a piece of iron at the far other end, it will react to the spark’s arrival similar to a magnet: which is to say, it moves.
- Based on my infinitesimal education on electricity, I think it means when you hit the rock, you create not just a spark but a magnetic field around the spark.
- Magnetic fields will turn things.
Am now experimenting with how big a thing it can turn.