A clock without electricity uses gears, springs, or weights to keep moving. Imagine a big toy car that keeps going because it has a rubber band, when you pull the rubber band back and let go, it makes the wheels spin. A mechanical clock is like that toy car: inside are tiny gears that turn one after another, keeping time without needing electricity.
Examples
- Winding your grandfather’s clock is like giving it a big hug, it keeps ticking for hours without needing any electricity.
- A pocket watch that you wind every morning stays accurate all day because of its little spring inside.
- Some clocks have weights hanging from the back, and as they slowly fall, they power the clock's hands.
See also
- What Causes the Northern Lights?
- How Does a Mirror Work Exactly?
- Why Does Time Seem to Fly When You're Having Fun?
- What Causes the Sky to Change Colors at Sunset?
- What's the Point of a Shadow?
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Categories: Physics · Clocks· Mechanics· Timekeeping · Text is available under the Creative Commons Attribution-ShareAlike License.