✔ 最佳答案
Alarm clock is a type of clocks which is allowed to create noises on a set time. Its basic function is to awake the person who fall into sleep so well.However, alarm clocks could also be a reminder to the daily life.
The inventor for alarm clock~~~DA VINCI
DA VINCI is a famous name whom we have heard every time during art lesson about his creative achievement in the past. Da Vinci belived that it's a waste of time for those who sleep too much.Therefore, he invented an alarm clock.
The alarm clock were invented during the Da Vinci period, which were made up of water, water container, pans etc.