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Your left hand does most of the typing
On a QWERTY keyboard, several common letters—including A, E, T, S, and R—sit on the left side. English typists use their left hand for roughly 56% of…
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Look-alike couples can start that way
Researchers compared photographs of 517 couples from the beginning of marriage and decades later. The spouses already resembled each other early on; the study…
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Mbira thumb pianos resonate in hollow gourds
The mbira’s iron keys are set into a hollow calabash gourd. Plucking them sends the sound into the gourd, giving the instrument its resonant, watery voice.
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Closed cycle gas expansion drives pistons via external heat
A Stirling engine uses a sealed amount of gas: heating it makes it expand and push a piston, while cooling it makes it contract and pull the piston back. Its…
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Twelfth house dictates isolation periods
In astrology, the twelfth house is associated with confinement, retreat, and solitude. It’s a symbolic interpretation, not an explanation for why you suddenly…
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Refusing to paint a wall during the wrong week
Some calendar-based beliefs warn that paint applied during a particular backward phase will peel as it dries, leading people to postpone the project.
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Mjolnir decides who can lift it by moral standards
In Marvel stories, the hammer's enchantment makes it impossible for the unworthy to lift, no matter how strong they are.
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Reading birth charts at parties ruins the vibe
An unsolicited chart reading can turn a casual conversation into a critique of someone’s personality. What might feel like a clever party trick to the reader…
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Venice used a lottery to choose its doges
Venice alternated drawing lots with elections, repeatedly shrinking and enlarging the groups involved in choosing a doge. The elaborate process made it harder…
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Before Breaking Bad, Bryan Cranston voiced Power Rangers monsters
Before Breaking Bad, Cranston supplied voices for early Mighty Morphin Power Rangers monsters including Twin Man and Snizzard. The work paired his English…
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The word car is older than the engine
Its ancestry runs through words for a wheeled vehicle or wagon, including Latin carrus and a Gaulish root. The machine changed far more recently than the…
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Why bitter coffee appeals to some people
Bitter coffee can appeal for reasons beyond acquired sophistication: research links bitter-taste preference with a genetic variant and with caffeine’s…
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Real banknote paper is only one part of checking a dollar bill
US currency uses security features that correspond to the denomination, including watermarks and differently positioned threads. A note's material alone…
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What tapping your nose means in Britain
In Britain, tapping the side of your nose with your index finger signals that something is confidential, just between the two of you, or slightly illicit.
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Ancient Egyptian officials carried folding stools
High-ranking officials carried elegantly carved wooden folding stools, portable seats long before folding chairs became a modern staple.
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Orbs are just a massive mathematical margin of error
In astrology, an orb is the amount an angle can deviate from exact and still count as an aspect. A 10-degree allowance can make the reading feel less precise.
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Why uncertainty can feel worse than guaranteed pain
A guaranteed painful outcome lets you brace for impact; an uncertain one keeps asking whether the impact is coming. Because you can’t prepare or settle the…
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Why a passport is called a passport
A passport was originally a document granting permission to pass through a gate or port. The name is a tiny fossil from the days when crossing a border meant…
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Stoves did not exist for the vast majority of human history
Before stoves, cooking meant tending an open fire, often crouched close enough to risk singeing your sleeves.
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Discount windows let struggling banks borrow emergency cash
The facility is there for a bank that needs cash fast. The catch is that using it can signal trouble, making a bank weigh the money it needs against the…
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Terbium artificially dopes solid state electronics
Terbium can be added to a material as a dopant: an extra ingredient that changes how the host behaves. Even a small amount can alter how charge moves through…
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Solar arcs just shove your entire geometric map forward
In this astrological technique, the Sun’s movement over one day is applied to every point in a birth chart, shifting the chart forward to estimate when events…
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Your Skyrim follower can set off the trap you avoided
Followers do not automatically share your careful route through a dungeon. A companion can step on a pressure plate behind you and activate a mechanism you…
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The subway that blew passengers through a tube
In 1870, inventor Alfred Ely Beach built a block-long pneumatic transit system beneath Broadway. A giant fan pushed the passenger car through the tube, then…
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