Doorbell facts for kids
A doorbell is a helpful device usually found near a door. When someone visits and presses a button, a sound rings inside the building. This sound lets the people inside know that someone is at the door.
How Doorbells Have Changed
Doorbells have a cool history! The very first ones were completely mechanical. This means they worked with gears and levers, not electricity. Imagine pulling a cord or turning a handle to make a bell ring!
Later, people started using electricity. These newer doorbells had wires connecting the button outside to the bell inside. When you pushed the button, it completed an electrical circuit, making the bell ring.
Today, many doorbells are wireless. They use radio signals to send a message from the button to the chime inside. This makes them super easy to install because you don't need to run any wires through your walls!
Different Kinds of Doorbells
Doorbells come in many styles and types. Some are simple and just make a basic "ding-dong" sound. Others can play different tunes or even connect to your smartphone.
Modern doorbells, often called "smart doorbells," can have cameras. These cameras let you see who is at your door, even if you are not home! You can talk to visitors through the doorbell using your phone. Some can even record videos.
Images for kids
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Doorbell at the entrance of Chetham's Library, Manchester, England
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Doorbell mechanism from 1884 in Andrássy Avenue, Budapest
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Old door bell pull knobs in Edinburgh, United Kingdom. It is unclear whether bells were running by wire and pullies, or by electrical connection.
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Wireless doorbell with piezoelectric button
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See also
In Spanish: Campanilla de puerta para niños
