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Spinning pulsars continuously blast intense radiation
Transport

Spinning pulsars continuously blast intense radiation

A pulsar’s magnetic poles send out beams of radiation as the neutron star spins. When a beam sweeps across Earth, our telescopes catch a pulse—like a…

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Mystical ecstasy translates to stepping outside yourself
Myths & mysteries

Mystical ecstasy translates to stepping outside yourself

The word's literal root means “standing outside oneself,” evoking a state beyond ordinary awareness.

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Paracelsus claimed digestion was an internal alchemist
Myths & mysteries

Paracelsus claimed digestion was an internal alchemist

Paracelsus imagined an “Archeus” in the gut, an internal alchemist that separated the spiritual nutrients from waste in food.

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Industrial sweeper side brooms spin inward
Transport

Industrial sweeper side brooms spin inward

The side brooms sweep loose debris inward, funneling it toward the central pickup path. They work like tiny street-sweeping arms, herding grit toward the…

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The catacombs holding six million skeletons
Travel

The catacombs holding six million skeletons

The exhumed bones are stacked in a vast underground labyrinth, turning the catacombs into a stark contrast with the city above.

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Tree frogs leap massive distances at once
Travel

Tree frogs leap massive distances at once

Some tree frogs can leap more than 50 times their body length, using elastic leg muscles to launch through the canopy.

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Submarine sonar is loud enough to create cavitation
Transport

Submarine sonar is loud enough to create cavitation

A powerful sonar pulse makes water pressure swing sharply. At intense levels, that pressure change forms tiny vapor bubbles; their collapse creates…

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Can lip balm make your lips depend on it
Health

Can lip balm make your lips depend on it

Lip balm doesn’t switch off your lips’ ability to stay moist or make them biologically dependent. It forms a temporary barrier that helps limit moisture loss,…

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Pluto is narrower than North America
Science

Pluto is narrower than North America

The dwarf planet is about 2,377 kilometers across, less than the continent's coast-to-coast span. A world with mountains, ice plains, and a thin atmosphere…

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Korean celadon pottery features inlaid colored slips
History

Korean celadon pottery features inlaid colored slips

Potters carved patterns into the clay, filled them with contrasting black or white slips, then fired the celadon.

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Lockpicks are remarkably fragile pieces of metal
Games

Lockpicks are remarkably fragile pieces of metal

A lockpick is a small piece of metal that can break if it’s handled roughly while working inside a lock.

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Why a pebble can stop a kick scooter
Transport

Why a pebble can stop a kick scooter

A big bicycle wheel rolls over small bumps; a scooter’s little front wheel meets the same pebble like a wall. The wheel halts, the rider’s momentum carries…

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How sound can tear buildings apart
Science

How sound can tear buildings apart

A building can be pushed into bigger vibrations if sound waves keep arriving in step with its natural sway—like timed pushes sending a swing higher. That…

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Fall dignity completely embarrasses a luminary
Myths & mysteries

Fall dignity completely embarrasses a luminary

In astrological “fall,” a planet is imagined to lose its natural grace and status, struggling to handle even basic tasks.

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Fire hydrants lack universal standardized wrench sizes
Myths & mysteries

Fire hydrants lack universal standardized wrench sizes

Hydrant fittings vary by county, so firefighters may need specialized wrenches; the wrong one might not fit the local water supply.

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A pencil could rescue a cassette without switching on the player
Culture & entertainment

A pencil could rescue a cassette without switching on the player

Inserted into a spool, it gave the listener a handle for winding loose tape back inside the shell or moving the recording manually. The cassette's plastic…

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Carmel has a permit rule for unusually high, narrow heels
Travel

Carmel has a permit rule for unusually high, narrow heels

The California city's ordinance targets heels over two inches high with less than one square inch of contact area. Its concern is the risk of injury on…

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When Saturn’s rings looked like giant ears
History

When Saturn’s rings looked like giant ears

Early telescopes couldn't resolve Saturn's rings, so they blurred into two handles jutting from the planet. Better optics revealed a vast ring system of…

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