ELI5: Explain Like I'm 5

Solar-powered watch

Hey kiddo, have you ever seen a watch? It's a cool little device that sits on your wrist and tells you what time it is. But have you ever heard of a solar-powered watch?

Well, a solar-powered watch is a special kind of watch that uses the power of the sun to run. You see, most regular watches use a little battery inside them to tick away and keep time. But with a solar-powered watch, there is a tiny solar panel on the watch face that collects energy from the sun and converts it into electricity.

That's right, it's like the watch is drinking up sunshine to keep working! And the best part is, you don't have to worry about replacing the battery like you would with a regular watch. As long as the sun is out, your watch will keep on ticking.

Now, you might be wondering how the watch knows what time it is. Well, that's thanks to something called a quartz crystal. Inside the watch, there is a tiny piece of quartz crystal that vibrates extremely fast when electricity runs through it. These vibrations are so precise that they can be used to measure time with incredible accuracy.

So, thanks to the power of the sun and the precision of quartz, a solar-powered watch is a super cool gadget that can tell time without ever needing a new battery. Isn't science amazing?!