How can humans on the ground detect or feel the occurrence of a solar flare?
Answer
Humans possess no sensory organs capable of detecting magnetic or X-ray flux
Solar flares are essentially invisible to the naked eye and have no physical impact on human sensory perception. There is no biological mechanism for humans to feel magnetic field fluctuations, nor can we perceive the increased X-ray or extreme ultraviolet radiation flux that enters the upper atmosphere. Unless an individual is looking at data from specialized scientific instrumentation, a solar flare remains completely imperceptible to the average person on the ground.

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