WEBVTT

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Hello, Minerva? Do you read me? Over.

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Hello, Minerva. It's difficult to hear you. Over.

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[unclear opening audio]

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Hello, Minerva. Your signal is unclear. [unclear speech] Over.

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I can't quite hear you, Adabot. There's too much noise.

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Hello, Minerva.

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Come in, Minerva.

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I'm sorry, Adabot.

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There's too much noise in this signal. I couldn't hear you.

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I know. I couldn't hear you either.

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Plus, I was going to watch a movie, but it won't play.

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Any idea why?

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Hmm. Something around here might be creating noise and interfering with the Wi-Fi

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signal.

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Noise? I don't hear any noise.

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Well, Adabot, sometimes there's noise that we can't hear.

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It's not audio noise, it's electrical noise.

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And it can cause problems for wireless circuits like your laptop's Wi-Fi.

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Or even our walkie-talkies.

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Noise that you can't hear?

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Interesting.

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But where could it be coming from?

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Lots of things can create electrical noise.

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But the most common are devices with motors in them.

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Like, say, this fan.

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weird the video still isn't loading noise could also

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come from devices they

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use a lot of power or send out radio waves

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or microwaves

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so I just hear the

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microwave oven. Oh good, my popcorn's done.

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And look, now that the microwave's stopped, the video's loading just fine.

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Excellent, we are now noise free. But why does electrical noise cause problems

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like that?

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Too much electrical noise can confuse or overwhelm a circuit. Engineers often have

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to work on

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reducing electrical noise in their circuitry because less electrical noise

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makes a circuit work better. Oh, just like how it's hard for a person to do work

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when there's lots of audio noise around. Exactly. Okay, now that the Wi-Fi is

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working, let's try the walkie-talkies again. Okay, let's do it.

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hello Minerva do you read me over loud and clear so what was it you wanted to

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ask me over oh right would you like to come over here and watch a movie with

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me over

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hello Minerva