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Name:  Giovanni
Status:  other
Age:  50s
Location: N/A
Country: N/A
Date: 2000-2001


Question:
If we put some kind of bodies nearby a magnet we can feel a repulsive or attractive force acting on them. Now, as long as light may be considered an electromagnetic wave travelling the space, I wonder why we can't detect such a force if we put those bodies nearby a source of light (its magnetic component).

Does it depend on the relative low intensity of the currently available sources of light?

Or is it due to rapidly changing vectors of forces associated with the field? Or is the question completely wrong? (I'M AWARE THAT MY IDEAS IN THIS FIELD ARE VERY NAIVE.) THANK YOU FOR YOUR WONDERFUL WEB SITE FROM A MEDICAL DOCTOR LIVING IN ROME-ITALY THAT LOVES PHYSICS.


Replies:
The rapidly changing field direction is the major reason for no noticeable force. Some force exists, as can be seen in a UHF television antenna. The electrons in the antenna can oscillate at the frequency of the magnetic wave. It is not enough to move the antenna, just some of the free electrons within.

Kenneth Mellendorf



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