Look up from a truly dark place and the Milky Way appears as a pale river of light crossing the sky. That glow is produced by stars so numerous and distant that most cannot be distinguished individually with the naked eye. It raises one of...
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Imagine falling feet-first toward a black hole. At first, if the black hole were isolated and you began far enough away, the experience would not feel supernatural. You would be in free fall...
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The internet contains billions of websites, streams enormous quantities of video, connects data centers across continents and crosses oceans through cables thousands of kilometers long. So i...
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The little hat-and-glasses icon has become shorthand for secrecy. Open an Incognito window in Chrome — or a Private Browsing window in another browser — and it feels as though you have stepp...
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Suppose you buy a brand-new one-terabyte SSD and place it on an impossibly precise scale. Then you fill every available byte with photographs, films, documents and music. Has the drive becom...
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A bitcoin cannot be held in your hand. It does not represent a legal claim on a company, pay a dividend or give its owner a stream of rental income. There is no warehouse containing one bar...
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Wi-Fi feels almost absurdly simple from the outside. Tap a network name, enter a password, and within seconds a phone can stream a film from a server thousands of kilometers away. No cable r...
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You type a search into Google, press Enter, and nothing happens. The page spins. Gmail refuses to load. Drive throws an error. Within seconds, one of the internet's most common diagnostic qu...
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The internet has produced plenty of suspiciously convenient health claims, but few are as appealing as this one: every time you fart, you supposedly burn 67 calories. Repeat the process ofte...
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Taking a screenshot is one of the smallest computer skills imaginable — right up until you switch from a Mac to Windows, buy a keyboard without an obvious Print Screen key, or need to captur...
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