Top to bottom: Lights flashing at
frequencies
f
= 0.5 Hz
, 1.0 Hz and 2.0 Hz, i.e. at 0.5, 1.0 and 2.0 flashes per second, respectively. The time between each flash ? the
period
T ? is given by
1
?
f
(the
reciprocal
of
f
?????????:Px1
), i.e. 2, 1 and 0.5 seconds, respectively.
?
?????
(??????? - Hz) ??? ??????????? (frequency) ? ????? ???????? ???????????? SI ????? ????????
???????????? ?????
(Heinrich Rudolf Hertz) ? ?????? ?????? ??????????????? ???????? Heinrich Rudolf Hertz ??? ?????????????????????????? ????????????? ?????????????? ???????????????? ???????? Hetz ??? kilohertz (103Hz, kHz), megahertz (106Hz, MHz), gigahertz (109Hz, GHz), terahertz (1012Hz,THz), petahertz (1015Hz, PHz), and exahertz (1018Hz, EHz) ????????? ??????????? ???????????????? ???????
????????? ???????????? sine waves ????? ?????????? tones ??????? ????????? ???????????? ?????????? ???????????? ?????????????????? ??????????????????????? ???????? ?????????????? ???????? ???????????????????? ??????????????????????????? ?????????????????? ????????????
????????????????? CPU ? Clock rate ??? ???????????? hertz ????? ??????????
?????????:SI multiples
