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Explore our collection of simple explanations for curious minds.

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What is the difference between diesel engines and petrol engines?

How does the Internet work?

What makes robots move and do things?

How does my tablet know where I'm touching?

How does the internet get to my device without wires?

How do characters move on the screen?

Does a computer have a brain?

What is the internet and how does it work?

How can I talk to someone far away on a phone?