Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency.For example, if a newborn baby's heart beats at a frequency of 120 times a minute, its period â the interval between beats â is half a second (60 seconds (i.e., a minute) divided by 120 beats).or each dot, f is the frequency in hertz (Hz) â meaning the number of times per second (i.e. cycles per second) that it flashes â while T is the flashes' period in seconds (s), meaning the number of seconds per cycle. Each T and f are reciprocal.
The most typical Russian surname is considered to be Ivanov, although the most common surname in Russia is in fact Smirnov (from the word smirny, meaning meek): Smirnovs make up 1.8 percent of Russia's population, while Ivanovs, only 1.3 percent.
Russian names generally consist of three names. A given name, a patronymic name and a family name. A patronymic name is based on the name of one's father, grandfather, or earlier male ancestor.Russian male patronymic names are formed by adding the suffex-evich or-ovich, female patronymic names by adding the suffex-ovna or-evna.ussian names generally consist of three names. A given name, a patronymic name and a family name. A patronymic name is based on the name of one's father, grandfather, or earlier male ancestor.