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 often enough, the story goes, and your digestive syste...
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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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The sky is so reliably blue on a clear day that the color can feel like a property of the atmosphere itself, as though Earth were covered by an enormous blue ceiling. It is not. Air is essen...
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Look down at almost any laptop, desktop keyboard or smartphone in the English-speaking world and the first six letters are the same: Q-W-E-R-T-Y. The arrangement feels so inevitable that it...
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Every few years, a headline or social-media post seems to announce the same piece of cosmic good news: Pluto is a planet again. For anyone who learned the old nine-planet Solar System in sch...
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If Mars can come within roughly 55 million kilometers of Earth, why does a spacecraft sent there travel something closer to 480 million kilometers — and spend around seven months doing it? T...
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Science-fiction space battles have trained us to expect a particular soundtrack: engines roar, lasers crack and exploding spacecraft detonate with a cinematic boom. Put the same battle in th...
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You are almost asleep when the floor seems to disappear. For a fraction of a second, your body feels as though it has stepped off a ledge. A leg kicks, an arm jerks or your whole torso jumps...
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It often begins so subtly that you wonder whether you imagined it: a tiny flutter under one eye, a faint pulse in the eyelid, then another. A few minutes later you are staring into a mirror,...
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There are few moments quite like looking into the toilet and discovering that something which is normally brown has turned unmistakably green. It is the kind of question many people would ra...
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