Writer credits Charles Goodyear for developing rubber compounds . Tires may be constructed from 200 raw materials . That meant , he added simply , the one who had `` applied himself most perseveringly to the subject . '' The first tires were made of wood, leather and paper. Tread designs are first tested for traction in `` virtual reality ''
Writer credits Charles Goodyear for developing rubber compounds . Tires may be constructed from 200 raw materials . The first tires were made of wood, leather and paper. Tread designs are first tested for traction in `` virtual reality ''