The clip waits close by. The steel ends are the working parts.
What's pulling?
The clip waits. The cube stays. Nothing is touching the clip.
This steel end pulled it.
Drag the clip away, then let go. The pull grows as you get close. Both steel ends pull. Iron does not get pushed.
The clip moved. Nothing was touching it. What's pulling?
Try this with a grown-up.
Notice
The working parts are the two steel ends. The red paint is only the body.
The magnet and the clip interact across a gap.
The wooden cube does not join in. Wood is not pulled this way. Iron is.
What do you predict?
Does the other end of the horseshoe pull the clip too, or send it away?
If the clip can be pulled without touching, what else in the room might be sitting in a field?
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