On August 11, 1994, a man in Philadelphia sat down at a computer and bought a CD. The album was Sting’s Ten Summoner’s Tales, the price was $12.48 plus shipping, and the seller was a young company called NetMarket. Nothing about the object...
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Computer viruses have a reputation for destruction. They can erase files, encrypt disks, steal passwords and make a computer unusable. But can malicious software cross the invisible boundary...
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“The cloud” may be the most successful disappearing act in modern technology. Upload a photograph and it seems to float away. Stream a film and it arrives from nowhere. Ask an AI system a qu...
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Bluetooth is such an ordinary part of modern life that its name barely sounds strange anymore. We tap an icon and headphones connect to a phone, a keyboard finds a computer, or a car starts...
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Imagine stepping outside after a thunderstorm and discovering the road covered in frogs. Some are hopping. Others are lying in puddles or on rooftops. Witnesses insist they watched them fall...
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A fish can be surrounded by water and still run out of oxygen. That sounds like a contradiction only because we tend to think of water itself as the thing fish breathe. It is not. Most fish...
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Put a glass of water near a cat and it may drink calmly. Turn on a faucet and the same cat might become fascinated, batting at droplets for minutes. Lower it into a bathtub, however, and you...
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Space is famously cold. The number repeated in textbooks, documentaries and trivia lists is about 2.7 kelvin, or roughly −270.4 °C — less than three degrees above absolute zero.That number i...
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Ask a child to draw the Sun and there is a good chance they will reach for a yellow crayon. Search for a Sun emoji and you will find the same convention. For centuries, artists have painted...
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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...
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