claim: Simon Cowell has given to charities
evidence: A mechanical joint is a section of a machine which is used to connect one mechanical part to another .. machine. machine. Mechanical joints may be temporary or permanent , most types are designed to be disassembled .. Most mechanical joints are designed to allow relative movement of these mechanical parts of the machine in one degree of freedom -LRB- insert LINK -RRB- , and restrict movement in one or more others .. machine. machine. Mechanical joints are much cheaper and are usually bought ready assembled .. -LRB- please add other joints like  : U-joint , ball joint , prismatic joint -RRB-