A detector is like a super-smart friend who helps you find things. Imagine you have a friend who can smell cookies from far away. This friend is like a detector for cookies, using their nose to tell you when there are cookies nearby. Detectors have special abilities to sense things that we might not notice easily.
Think of a detector as a magical pair of glasses that lets you see invisible things. For example, a metal detector helps people find treasures buried underground by sensing metal. It’s like having a secret power to know where the hidden treasures are.
Detectors can also be like a superhero’s ears that can hear things from far away. Smoke detectors in your house can ‘hear’ or ‘smell’ smoke and tell you if there’s a fire, just like a superhero warning you about danger. They have special tools inside them to notice things that are important.
In a way, detectors are like your pet dog, who barks when someone comes to the door. They help keep you safe by letting you know when something is happening, even if you can’t see or hear it yourself.