???? ????? ????? ?????? ???????? ?????????? (???-???,????;) ?????????? ??????? ?????? ????, ????????? ??????? ?? ?????? ???. ????? ???? ?????????? ????????? ??????? ?????. ??????? ?????????? ????????? ?????????? ??????? ???? ????. ???? ??? ?? ?????? ?? ?? ?????????? ?? ????????? ???? ??? ?????. ?? ?????????? ?????? ????? ?????????? ???????? ????????? ??? ??? ??? ????.

• ??????? ????? ??????????? ?????? ?? ??? ?????? ????.
• ??????? ??? ???? ??? ????? ?????, ??? ???? ????? ????? ?? ?????? ??? ??? ???? ????.
• ???????????? ???? ??????? ??? ????? ???? ????? ????? ???, ???? ???? ???????????? ????? ?????? ??? ??? ????. ???? ?? ?? ??? ???, ?????? ???? ?? ???? ????? ?????????? ?????? ???????? ???????? ?????. ???????????? ????? ???? ????????, ???????? ?????? ?????????? ??????? ?????? ????.

????????? ??????????? [ ?????? ]

????? ????? ??? ???? ???? ?? ????????? ??????? ???????? ????. ??? ????????? ????? ??? ??????? ???? ?? ??? ??????????? (Tuning Fork) ?????? ???? ????? ?????.

??????????? ????? ????? ??.? ????? ??????? ???.

?? ???? ? ??? ???? ??????, ????????? ?????? ?? ??????? ???.

????? ??. ? (?) ????? ????? ??????? ?????? ???. ????????????? ??????????? ????? ?????? ????????????? ????? ??????? ???? ???? ???. ??? ????? ????????? ???? ???? ???. ???? ???? ?????? ?????? ???? ???????????? ?????? ???????? ??????? ???? ??? ???????? ????? ?????? ??? A, B ??? C ?? ????? ?????? ?????? ???.

????????? ?????? ??????? ??? ???? ????????? ????????? ???? ??? ??????? ??????? ???? ??????? ??????? ????-???? ??? ????????? (periodic) ?????? ???? ????. ?? ??????????? ??? ???? ?? ??? ???????????????? ??????. ??? ???????,

????? ??.? (?) ????? ????????????????, ????????????? ???? ???????????? ??? ??????? ?????????? ??????? ??? ????? ???? ? ????? ????? ??? ??????? ?????.

?????? ?????? ??? A ?? ?????? ??? ???? ?????? ?????? ???????? ????. ???? ??? ??? ???? ???????? ?? ?????? ?????? (Compression) ???????. ????????? ????? ??????? ????????????? ???? ??????????? ??? ??????, ????? ??.? (?) ????? ????????????????, ?????????? ??????? ??? ???? ???? ? ????? (??? A ????) ????? ??? ??? ????. ??? ??? ??? ??? ???????? ?? ?????? ????? (Rarefaction) ??? ???????.

????? ??? ?????? ??????? ?????? ????????? ?????? ??????? (????? ??.?(?), ??? A) ???? ????? ????? ??????? ??????? (??? B) ?????????? ????? ??? ?????? ??????? ???? (??? ????? ??.?(?), ??? B). ????????? ??? ?????????? ??? ????? ?????? ???????? ????????? ??????????? ???? ?????? ? ????? ????? ?????? ??????? ???? ? ?????????????? ????????? ???? ????. ????? ??? ????? ???? (sound wave) ??? ??????. ?? ????????? ?????? ??????? ??????? ???? ????? ???? ? ?????????? ??????? ????? ??????????? ??????? ???????? ????? ???????? ????? ????.

?????? ???????? ??? ??????? ???? ??? ????? ??? ?? ???????????, ???????, ????????, ?????????? ???? ???????. ???? ????? ??????? ????? ??????????? ?????? ?? ??? ?????? ????. ??????? ????? ??????? ????????????? ??????? ???????????? ???? ???? (???? ????????? ?? ?????????? ????).