Explain that Stuff How quartz clocks work? Clocks don't "tell" time, they *coun...

Explain that Stuff
How quartz clocks work?

Clocks don't "tell" time, they *count*
time. Clocks work by making some process repeat and then counting it. Quartz is a piezoelectric crystal,
which means it vibrates when you
feed electricity into it. So make quartz vibrate, count those
vibrations, and you can count seconds very accurately. Here's
how:

1) A battery feeds electricity to a circuit in your watch;

2) The circuit feeds power to a tiny
quartz crystal, which vibrates 32,768 times per second.

3) The same cicuit counts the vibrations,
divides by 32,768, and gets the number of seconds.

4) Once a second, the circuit drives a tiny
motor.

5) The motor powers
gears and they sweep the second, minute, and hour hands round
the clock.