??????? ???????? ????? ???????? ?????????? ????? ????????? ??????????? ???? ???????????? ???????????????? ???????????? ????????????? ???? ????? ? ????????????? ????????? ??????????? ? ???, ??? ? ??? ?????? ? ?????? ?????????????? ???????, ??????? ????????? ?????????? ??????.[5] The certainly moveable engine was invented in 1839 by William Tuxford o