Basic question about velocities of particles

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This discussion addresses the velocities of particles, specifically focusing on why certain particles like photons and electrons travel at speeds close to the speed of light (c). It highlights that all motion is relative to a given frame of reference, meaning a particle's speed can vary depending on the observer's perspective. The conversation also notes that slow-moving particles, such as neutrons involved in nuclear fission and conduction electrons in light atoms, exist and can be considered in different contexts.

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Are there any particles (atomic, subatomic) that on average travel very slowly? As in, why is it that photons, electrons, etc. seem to (almost always) travel at speeds close to c (or at c in the case of a photon in a vacuum)?
 
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Relative to what? All motion is relative to some given frame. A particle that is moving slowly relative to one frame may be moving rapidly relative to another. And what reason do you have for saying that electrons, etc. move "close to c". (Photons, of course, necessarily move at c.)
 
The slow neutrons that take part in nuclear fission travel relatively slowly.
Electrons in light atoms also travel relatively slowly.
Conduction electrons in a wire travel relatively slowly.
 

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