This is an example of physics. as i walked down the plastic piping (they are currently renovating the sewers or something near my house) i found that if i touched the metal rail, i would get shocked with thestatic electricity. the longer i walked down the pipe, the greater the shock. The rubber on the soles of my shoes takes electrons off of the piping as i walk down it because it is higher on the triboelectric series list of materials. so, when i touched the metal, the electrons are transfered to the metal in a process similar to that lightning undergoes.
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