1 Place the bulgur in a bowl, and cover with water by 1/2 inch. 2  Soak for 20 minutes, until slightly softened. 3  Drain through a cheesecloth-lined strainer, and press the bulgur against the strainer to squeeze out excess water.
Amplitude. Amplitude is a measurement of the vertical distance of the wave from the average. The wave axis is the average height of the wave over one cycle, and is usually considered to be zero. Heights above and below the average are given positive and negative values, respectively. The wave shape shown below is called a sine wave. The maximum and minimum amplitudes of this sine wave are the heights measured from the wave axis (white line) to the top of the wave peak and bottom of the wave trough.
What does it mean? Waves carry energy, and the amplitude of a wave is generally a measure of how much energy the wave carries. In the same way, the displacement of a bow string, determines the amount of energy that propels the arrow. Energy is a positive quantity, so the amplitude is a positive number.However...Scientists don't usually talk about the amplitude of a light wave, since light isn't traveling in some substance like water or air.nergy is a positive quantity, so the amplitude is a positive number. However... Scientists don't usually talk about the amplitude of a light wave, since light isn't traveling in some substance like water or air.