Voyager 1 is now more than 25 billion kilometres from Earth, and its transmitter runs on about 22 watts — less than the bulb in a fridge — yet NASA’s Deep Space...

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How did a rubber gasket the size of a dinner plate, stiffened overnight in a Florida cold snap, rewrite the way NASA engineers are allowed to disagree with mana...

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A QR code’s three corner squares aren’t decoration — they’re position markers that let a scanner work out the code’s orientation in under a millisecond, even wh...

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When your phone shoots a portrait, the blurred background isn’t optical — the camera builds a depth map from two lenses, then applies a Gaussian blur that mimic...

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How did a country with no large rivers and limited land to collect rain build the capacity to meet up to 40 per cent of its water demand with sewage clean enoug...

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How did a cracked rubber O-ring the size of a coin, stiffened by a Florida cold snap in January 1986, destroy a space shuttle 73 seconds after launch?

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The rarest form of mental strength in adult life isn’t discipline or resilience, it’s the capacity to sit inside an unresolved feeling for an hour without needi...

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The ‘root’ of the internet is 13 named server clusters — labelled A through M — that between them answer roughly 1.6 million DNS queries every second, and one o...

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How did a Sunday driving ban imposed by Dutch prime minister Joop den Uyl during the 1973 oil shock quietly turn empty motorways into the seed of 35,000 kilomet...

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Deleting a file removes only the signpost pointing to it — the bytes themselves sit on the disk for weeks or months, which is why forensic tools can still rebui...

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When YouTube launched in April 2005, its first video was a 19-second clip of co-founder Jawed Karim standing in front of elephants at San Diego Zoo — the site w...

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The JPEG format was finalised in 1992 by a committee that met for six years to agree on how much visual information a human eye would tolerate losing — the answ...

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How did a publicly humiliated Japanese electronics firm turn a failed CD partnership with Nintendo into a console that outsold every rival of the 1990s?

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How does a fibre-optic cable no thicker than a garden hose carry roughly 99 per cent of intercontinental internet traffic across 13,000 kilometres of ocean floo...

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Wi-Fi can slow to a crawl in a crowded café even when the fibre connection is fast, because 2.4 GHz offers only three non-overlapping 20 MHz channels in most pl...

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How did a Cornell graduate student’s 99-line bootstrap program in November 1988 infect roughly 6,000 machines — about 10 per cent of the early internet — and fo...

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When you tap Send on an end-to-end encrypted message, the server passes along a scrambled blob it cannot read — but the timestamps, your contact list and who yo...

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How did a stray calico cat, handed a stationmaster’s cap at the unstaffed end of a dying Japanese branch line, lift its ridership by 17 per cent and generate an...

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When you type bbc.com, the invisible DNS lookup that may end in a nearby cache or climb from one of 13 named root-server authorities through .com to the site’s ...

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How did one incorrect command input during a routine debugging task in February 2017 knock a large slice of the internet offline for about four hours?

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