For starters, the term "ground" refers to a conductive body, which is typically the earth. The act of "grounding" means creating a low-resistance path between an electrical circuit or equipment to the ...
This article discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, ...
Have you done any service work lately, and noticed a spark as you connect or reconnect the grounding electrode conductor to the ground rod of what appeared to be a perfectly normal electric service?