Random Paragraph Generator

A computer follows instructions very, very quickly. These instructions are called a program. A program tells the computer exactly what to do, step by step, such as adding two numbers or showing a picture on the screen. Computers don't think the way people do; they only do what they're told. If a program has a mistake in it, the computer will follow the mistake too! People who write programs are called programmers, and they spend a lot of time finding and fixing those mistakes.

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Choosing a good password is one of the easiest ways to stay safe online. A strong password is long and hard to guess. Avoid using your name, your birthday or simple words like "password." Instead, try stringing together several random words, or let a password manager create one for you. Use a different password for each account, so that if one is ever leaked, the others stay safe. And never share your passwords with anyone, even a friend – especially in a message.

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The internet is a huge network of computers connected to each other all around the world. When you open a web page, your device sends a request through this network to another computer, called a server, which sends the page back in small pieces called packets. These packets may travel by different routes and then get put back together in the right order on your screen. All of this usually happens in less than a second, which is pretty amazing when you think about it.

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Phones have changed the way we take pictures. Not long ago, people carried separate cameras and had to wait days for their film to be developed. Each photo was precious, so they thought carefully before pressing the button. Now we can take hundreds of pictures in an afternoon and see them instantly. That's wonderful, but it also means many photos are never looked at again. Perhaps it's worth choosing a few favorites now and then, printing them, and putting them somewhere you'll actually see them.

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Robots are machines that can sense their surroundings and carry out tasks. Some work in factories, welding car parts or packing boxes with perfect precision. Others explore places that are too dangerous or distant for people, such as the deep ocean, the slopes of active volcanoes or the surface of other planets. Small robots can vacuum floors or mow lawns. Most robots don't look anything like people; they're shaped to suit their jobs, with arms, wheels, propellers or legs as needed.

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A battery stores energy so we can use it later. When you put batteries into a flashlight or a toy, they send electricity through the device to make it work. Some batteries can only be used once, while others can be recharged again and again. Phones, laptops and electric cars all use rechargeable batteries. When batteries are used up, they shouldn't go in the regular trash; many stores and recycling centers collect them so the materials can be used again.

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Video calls let people see each other even when they're far apart. A grandparent in one country can watch a grandchild blow out birthday candles in another. Classmates can work on a project together from their own kitchens. All you need is a device with a camera, a microphone and an internet connection. Of course, there are small problems: frozen faces, echoing voices, and someone always forgetting to unmute. Still, it would have seemed like magic to people just a few generations ago.

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It's easy to believe everything we read on a screen, but not everything online is true. Before sharing a surprising story, it's worth pausing to ask a few questions. Who wrote it? Is it reported by more than one trustworthy source? Does the headline match what the article actually says? Pictures can be edited, and quotes can be taken out of context. Checking takes only a minute or two, and it helps stop rumors from spreading. Being curious – and a little bit skeptical – is a valuable skill.

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Solar panels turn sunlight into electricity. They're made of special materials that release tiny charged particles, called electrons, when light hits them. That flow of electrons is an electric current, which can power lights, machines and homes. Solar panels work best in bright sunshine, but they still produce some power on cloudy days. You might see them on rooftops, in fields, on calculators or beside road signs. They make no noise and have no moving parts.

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Before a new app reaches your screen, a team of people works hard to build it. Designers sketch how it should look and decide where every button goes. Programmers write the code that makes it work. Testers try to break it, tapping things in strange orders and entering odd information, so that bugs can be found and fixed. Even after it's released, the work continues: updates add new features and fix problems that users report. No app is ever truly finished.

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Typing quickly is a useful skill. The trick is to keep your fingers resting on the middle row of the keyboard, called the home row. From there, each finger has its own keys to reach. At first, it feels slow and awkward, and you might want to look down at your hands. Try not to! With a little practice every day, your fingers will learn where the keys are on their own. Soon you'll be typing whole sentences without thinking about it.

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