How Does a Watch Know What Time It Is?? ⌚️

Morning G-SHOCK!

Wait!

What did you just do…

Witchcraft!

How does a watch know what time it is?

Okay so imagine you’re wearing this Durd watch.

Now if we go inside:

Past the numbers and the battery and the motherboard:

We find a tinyyy little tube.

And if we crack that tube open, we see a…

Quartz crystal!

But hang on.

No matter how hard you try, rocks can’t tell time.

So lucky for us, this quartz crystal isn’t just a rock.

It’s shaped like a little fork:

And when you send power through it from the battery, its tiny fork arms start vibrating.

And that vibration isn’t random at all.

The physical properties of quartz cause these fork crystals to vibrate 32,768 times per second.

So your watch starts counting its quartz crystal’s vibrations.

And every time it counts 32,768 vibrations, it knows a second has passed!

Stay Cute,
Henry & Dylan 🌈

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