????? ?? ???? ???? ??????? ? ?? ??? ?? ??? ??? ???? ???? ??????? ????? ???? ??? ???????. ?????? ?? ????????? ????? ??? ?? ???? ??? ??? ????? ??? ??????? ??????? ?? ??? ??????? ???????. ?? ???? ??? ???? ??? ????? ?????? ????? ?? ????? ?????? ????? ?????.? ????? ? ????? ????? ????? ????? ??????? ??? (????????)Hooke also needed to measure and certify