Finely chop the onion and pour the salt and allspice over the onion, mixing them well. Meanwhile, soak the bulgur in warm water for 20 minutes and squeeze out the excess water, (or soak in the lemon juice for a crunchier and more lemony flavor).
(under construction). Wave period. Wave frequency is also related to another measurement called the wave period (T). The wave period is just how much time it takes for one cycle to pass and the units are always in terms of time.The faster a wave moves, its wave period becomes smaller.Instead of measuring in terms of a fixed time unit, the second, the wave period uses a fixed number of cycles, one cycle ...he wave period is just how much time it takes for one cycle to pass and the units are always in terms of time. The faster a wave moves, its wave period becomes smaller. Instead of measuring in terms of a fixed time unit, the second, the wave period uses a fixed number of cycles, one cycle ...
A transverse wave is when the wave is vibrating perpendicular to the direction the wave is traveling. A longitudinal wave, also called a compression wave, is a wave in which the vibration is in the same direction as that in which the wave is traveling. How frequently a wave or vibration occurs during a span of time, determines the waves frequency. Frequency is the number of waves per unit time. The unit for frequency if a Hertz ( 1/second). The speed a wave travels is the wavelength multiplied by this frequency. The amplitude of a wave is the maximum distance the wave is displaced. Waves are characterized by several distinct behaviors. One behavior is interference. Wave will combine with each other, causing an interference.