Imagine a clock like a little robot that counts seconds. It uses gears to count the time, just like you use your fingers to count numbers. Some clocks even ask a special friend in space, called a satellite, for help when they need to be extra accurate.
Examples
- A grandfather clock uses a swinging pendulum to count the seconds, like a metronome for time.
- Your phone's clock gets the correct time from a satellite in space when you connect to GPS.
- A digital watch can remember the right time even if it's left on a shelf for months.
See also
- How Did the Internet Begin?
- How Does a Smartphone Recognize Your Face?
- Why Do We Use Passwords for Security?
- Why Do We Get 'The Runs' on Planes?
- How Does a Fridge Keep Food Cool?
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Categories: Technology · Clocks· Timekeeping· Mechanics · Text is available under the Creative Commons Attribution-ShareAlike License.