String mit vibrator

Description:This effect is called the stroboscopic effect , and the rate at which the string seems to vibrate is the difference between the frequency of the string and the refresh rate of the screen. The same can happen with a fluorescent lamp , at a rate that is the difference between the frequency of the string and the frequency of the alternating current. If the refresh rate of the screen equals the frequency of the string or an integer multiple thereof, the string will appear still but deformed. In daylight and other non-oscillating light sources, this effect does not occur and the string appears still but thicker, and lighter or blurred, due to persistence of vision.

Views: 3605 Date: 2018-11-05 Favorited: 45