James rambles about barcodes and supermarkets before unleashing his perfect Jeremy Clarkson impression! How do barcodes work?\rbr\rbrWhat do all those black and white stripes actually mean? James May investigates the mystery of the barcode. James does his Jeremy Clarkson impression .\rbr\rbr\rbr\rbrWith his own unique spin, James May asks and answers the oddball questions that weve all wondered about from What exactly is one second? to Is invisibility .\rbr\rbrDespite being right handed James explains that lefties are more angry (in theory) and the need for left handed military guns. Sometimes being normal can be a .