Tipping is not widespread in Nicaragua except with guides and at restaurants. 1  Guides Tipping guides is recommended as this often makes up the lion's share of their salary. 2  Restaurants A tip of around 10% is expected for table service. Some high-end restaurants automatically add this to the bill.
a resonator that part which takes the basic sound produced by the vibrator and reinforces (amplifies) or improves its quality. an articulator that part which makes the vibrations stop. Idiophones are musical instruments in which a vibrating solid material is used to produce sound.
Sound waves make the eardrum vibrate. The rate of the vibrations indicates the frequency, or pitch, of the incoming sound. For example, a sound wave that vibrates at 256 cycles per second -- the middle C on the piano, for example -- is said to have a frequency of 256 hertz, the unit in which frequencies are measured.