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The machine that charges you to crush your own penny
Travel

The machine that charges you to crush your own penny

You crank the wheel and provide the penny, yet still pay the machine’s owner for the privilege of flattening your own currency.

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A regulatory DNA switch helped this salmon grow faster
Technology

A regulatory DNA switch helped this salmon grow faster

AquAdvantage salmon is an Atlantic salmon carrying a Chinook growth-hormone gene controlled by an ocean-pout DNA sequence. That control sequence changes how…

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Starting fires by staring aggressively
Myths & mysteries

Starting fires by staring aggressively

No confirmed cases support the supposed ability to ignite objects through mental focus; the brain seems better at sparking bad ideas than fires.

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Physical phrasebooks are heavy paperweights
Travel

Physical phrasebooks are heavy paperweights

A 300-page index can be slower to search than pointing at a menu when you're trying to order.

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Public broadcasting relies entirely on free riders
Economy

Public broadcasting relies entirely on free riders

Public TV faces an awkward funding deal: people can watch without paying, so donations have to come from viewers willing to chip in anyway. The audience is…

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Peach pits record thousands of years of human taste
History

Peach pits record thousands of years of human taste

Archaeologists studying Chinese sites found peach stones growing larger across generations of cultivation. The pits provide evidence of people selecting…

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Theme park visitors walk seven miles a day
Culture & entertainment

Theme park visitors walk seven miles a day

Even people who avoid office stairs may willingly cover those miles on blistering asphalt for a few minutes on a ride.

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Bend indium and it starts to scream
Science

Bend indium and it starts to scream

Bend indium and tiny patches inside it shift against one another. Those movements shake the surrounding metal, sending vibrations through it until they reach…

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People once thought cotton grew on tiny sheep
History

People once thought cotton grew on tiny sheep

Some early descriptions of cotton led people to imagine a tiny, wool-bearing sheep growing from a plant stem.

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Scientists made yeast brew THC and CBD
Technology

Scientists made yeast brew THC and CBD

By modifying baker's yeast, scientists made it consume sugar and produce THC and CBD, offering a way to make the compounds without growing cannabis plants.

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Equator line runs through thirteen nations
Science

Equator line runs through thirteen nations

The equator's route across land is a dramatic one: it crosses the Andes and dense stretches of Amazon and Congo rainforest. But most of its full circle runs…

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The strange rise of collectible spoons
Travel

The strange rise of collectible spoons

Commemorative spoons became popular in the late 1800s, often bearing the name of a city as a keepsake.

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Streetlights provide zero incentive for private funding
Economy

Streetlights provide zero incentive for private funding

A company paying for streetlights cannot stop people who never paid from using the lit street. Since it cannot easily charge each beneficiary, private firms…

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Infomercial phone operators up-sell callers aggressively
Culture & entertainment

Infomercial phone operators up-sell callers aggressively

Operators may steer callers from an initial $20 offer into subscriptions and bundles, making the final bill much higher.

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Travel bloggers invent reviews for traffic
Culture & entertainment

Travel bloggers invent reviews for traffic

Some high-traffic travel listicles are written by content farms whose writers have never visited the cities they cover, relying instead on other websites for…

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Inflatable bouncy hoppers were highly unstable toys
Transport

Inflatable bouncy hoppers were highly unstable toys

The rounded inflatable base gives a rider a tiny, shifting patch of support, so each bounce moves the center of balance. The toy turns standing upright into a…

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Influencers regularly buy fake audiences
Culture & entertainment

Influencers regularly buy fake audiences

Some influencers buy bot followers to look popular enough to win free stays and sponsored trips, leading tourism businesses to pay for an audience that isn't…

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Alcohol sanitizer disrupts the structures bacteria need to survive
Technology

Alcohol sanitizer disrupts the structures bacteria need to survive

It damages cell membranes and changes the shape of proteins, interfering with their normal work. Effectiveness depends on the formulation, contact, and…

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