picowatt It is true that once the projectile is launched, movement of the barrel has no effect on the already launched projectile. In a similar fashion regarding your light bulb, once a photon is emitted, modification of the bulb's position or on state no longer affects that previously launched photon. However, photons and projectiles are not "fields". Good response and this was the only point I was trying to make in my analogies. Something leaving a source becomes independent of the source. Again, I fail to see how the video offers any clues as to whether fields rotate with their source. The question of whether or not a magnetic field rotates with a magnet has been pondered for some time, and there remains debate among scientists as to whether it does or does not. I am in the camp that believes that fields do rotate with their source. Rotation of a purely homogenous magnetic field may appear to be stationary, however, it is a trivial matter to detect the variations in the rotating field caused by microscopic domain irregularities. It is therefore reasonable to state that the field is at least modulated as the magnet rotates due to these domain irregularities. Macroscopic irregularities are much easier to detect and the variations in the field that occur due to those macroscopic variations do indeed rotate with the magnet (a useful trait used every day to detect rotation of a shaft, etc) Good catch, when developing magnetic levitation devices and bearings I noticed all magnets have irregularities. My field mapping arrays determined field strength is never uniform near the surface. The far field is more uniform but the near field is a mess. I think we need to define what constitutes a true "field rotation". In my testing a rotating irregularity on the magnet surface caused a periodic change in the field detectors. Here a change in the field strength in one specific area rotates with the magnet. However we can do the same thing with many small magnets with different field strengths rotating. This is not a true "field rotation" imo it is a periodically changing field strength at the source. This comes back to my analogies and understanding the difference between a source (field carrier) and something external to the source (the field). When we adopt the "field carrier" model things become clearer imo. ChatGPT can explain it better... Question, does a magnet spinning on the north-south axis have a rotating field. The field is uniform, how can it rotate?. Answer, First: What does it mean for a magnet to spin on the North-South axis?
Assume we have a bar magnet with its magnetic dipole aligned North-South (i.e., magnetic north pole pointing geographic north). If you spin this magnet around its own magnetic axis (i.e., rotate it like a top, aligned N–S), then:
The direction of the magnetic dipole doesn't change — it's still pointing North. The field lines don't change either — they're symmetric around the axis. So, to an external observer, the magnetic field appears static, not rotating.
So does it have a rotating field?
No, not in this configuration. If the magnet spins about its own dipole axis (N–S), and the field is uniform and symmetric, there is no rotating magnetic field in space — the field does not change direction at any point in space. In effect, many people are confusing a field change and a field rotation. AC
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Comprehend and Copy Nature... Viktor Schauberger
“The first principle is that you must not fool yourself and you are the easiest person to fool.”― Richard P. Feynman
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Topic: Simplicity (Read 47315 times)
