How things work
Computers & the internet
What happens behind websites and apps, step by step. 9 works
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How a Web Page Arrives
From typing a URL to seeing the page.
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Logic Gates
Flip switches, light a bulb, and see 1 + 1 = 10 in a circuit.
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Sorting Race
Five ways to sort the same bars, side by side.
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Caesar Cipher
Turn the wheel to make a code, then crack it with a letter-count chart.
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Halving Search
Find a number among a million in 20 guesses, using only "higher" or "lower".
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How Cookies Work
When does a browser send a cookie back to the server?
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How DNS Works
Follow a website name on its way to its numeric address, one hop at a time.
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How Streaming Works
Why a video can keep playing when your connection slows down.
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How LLMs Write
Text-writing AI picks each next word by a kind of lottery.