where did the term third wheel come from
Third wheel The term third wheel is inspired by fifth wheel,[1] referring to someone who is with, or in a company of, a couple; with the implication of being invited out of pity or in some other way being (or feeling) redundant.
Potter's wheel The earliest forms of the potter's wheel (called tourneys or slow wheels) were probably developed as an extension to this procedure. Tournettes, in use around 4500Â BC in the Near East, were turned slowly by hand or by foot while coiling a pot. Only a small range of vessels were fashioned on the tournette, suggesting that it was used by a limited number of potters.[1] The introduction of the slow wheel increased the efficiency of hand-powered pottery production.