Signal noise

Okay kiddo, think of a movie theater where you are watching your favorite movie. Imagine that there are these annoying people in the audience who keep talking, laughing, coughing or even texting on their phones. These noises, which are not meant to be part of the movie, are called "noise."

Now, let's try to apply this to electronic signals. Just like a movie, electronic signals carry information, but sometimes they can get mixed up or disrupted by unwanted signals, which we call "noise." This noise interferes with the original signal and can make it difficult or even impossible to understand the message.

For instance, your parents might have noticed that sometimes when they talk to each other on the phone, there is a lot of static, crackling or hissing sounds. That's noise. And it can be caused by different things such as interference from other electrical devices nearby or a bad connection.

To solve this problem, engineers and scientists work hard to reduce noise in electronic signals so that the intended message is delivered correctly. They use different techniques such as shielding, filtering, and amplification to make sure that the signal is as clear and strong as possible.

So, noise is like those annoying people at the movie theater who disrupt the movie, and engineers are like the ushers who work hard to make sure that the movie-goers enjoy the movie without any distractions.