|
 |
|
 |
How does a digital watch work?
|
Tiny quartz crystals inside the digital watch vibrate at a steady rate when an electric current from a battery is applied. A silicon chip picks up the vibrations and turns them into regular pulses. The pulses are displayed as numbers on the liquid crystal display (LCD) on the watch face.
|
|
Previous:
Back
|
Book:
Best Ever Q&A
|
Section:
Science & Technology
|
Chapter:
Everyday Science
|
|
|
|
 |
|
|