From Wiki:
"Static electricity is usually caused when certain materials are rubbed against each other, like wool on plastic or the soles of shoes on carpet. The process causes electrons to be pulled from the surface of one material and relocated on the surface of the other material.
A static shock occurs when the surface of the second material, negatively charged with electrons, touches a positively-charged conductor, or vice-versa."
Sorry, i don't study physics so i found this pretty fascinating.
I stumbled on this little nugget of information when i was searching the net to try and understand electromagnetism. (yeah, don't ask me why, long story)
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