One of the most important characteristics of moral judgments is that they express our values. Not all expressions of values are also moral judgments, but all moral judgments do express something about what we value.
Several factors affect noise. 1  Pixel size. Simply put, the larger the pixel, the more photons reach it, and hence the better the signal-to-noise ratio (SNR) for a given exposure. The number of electrons generated by the photons is proportional to the sensor area (as well as the quantum efficiency).
For the sound wave we use Hertz as the unit of measurement where 1 Hertz = 1 vibration/second. Conceptually whenever a wave passes the medium it makes the first particle to which it comes in contact, vibrate. Then this particle vibrates the nearby particle at the same frequency. This is how energy is propagated.