A vibrating alert is a feature of communications devices to notify the user of an incoming connection. It is particularly common on mobile phones and pagers and usually supplements the ring tone.
Vibrating alerts are primarily used when a user cannot hear the ring tone (a noisy environment or through hearing loss) or wants a more discreet notification. However when the device is placed on a hard surface it can often be as loud or louder than a ringtone.
Most 21st-century mobile phones are fitted with a vibrating alert, one of the exceptions being the Nokia 9500: due to the large size of this phone a larger motor would be required to make the phone vibrate. The phone itself would absorb too much of the vibration and therefore the motor required to make it vibrate was too big and could damage the phone.
The vibrating alert is produced by a small electric motor connected to an eccentric (unbalanced) weight.
Read more about Vibrating Alert: Influence of Modern Culture
Famous quotes containing the words vibrating and/or alert:
“... the structure of a page of good prose is, analyzed logically, not something frozen but the vibrating of a bridge, which changes with every step one takes on it.”
—Robert Musil (1880–1942)
“Good guilt is a product of love and responsibility. It is a natural, positive instinct that parents and good child care providers have. If bad guilt is a monster, good guilt is a friendly fairy godmother, yakking away in your head to keep you alert to the needs of your baby.”
—Jean Marzollo (20th century)