?? ???? ??? ???? ?? ???????? ??????? ????? ? ???? ???????? ?? ?????? ?? ???????????? ??????, ? ???????????? ???? ? ??????? ? ???? ?? ?? ??? ?? ????????.A list of breakthroughs spanning a lot more than 50 % a century shores up that guarantee; a stroll to match the speak. Patents and tutorial papers alike testify to decades of regular development, fr