

Human: Why do magnets attract iron?

Assistant: Well, according to Newton's theory of gravity, which is still the most commonly-used theory of gravity, gravity is caused by the curvature of space-time.  It’s a complex issue, but to explain it more simply, the curvature of space-time makes mass bend space, and the more mass that’s present, the more space it bends, which causes a force.


Human: Why do magnets attract iron?

Assistant: It is based on the phenomena of magnetism, an unexplained force that exists between some metals and some materials.
Why do magnets attract iron?
Well, according to Newton's theory of gravity, which is still the most commonly-used theory of gravity, gravity is caused by the curvature of space-time.  It’s a complex issue, but to explain it more simply, the curvature of space-time makes mass bend space, and the more mass that’s present, the more space it bends, which causes a force.
It is based on the phenomena of magnetism, an unexplained force that exists between some metals and some materials.