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How researchers accidentally get the answers they expect
Psychology

How researchers accidentally get the answers they expect

Objective science is slightly less objective when the person holding the clipboard smiles at all the right answers. The Rosenthal effect happens when an…

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Sea shanties were once tools for heavy labor
Culture & entertainment

Sea shanties were once tools for heavy labor

Those catchy viral pirate tunes were originally designed as highly functional oceanic metronomes. Sailors used the aggressive rhythms exclusively to…

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Why jet doors have no outside keyholes
Transport

Why jet doors have no outside keyholes

There is no keyhole on the outside of a massive jet. Once it is parked and powered down, anyone with a staircase could theoretically just pull the handle, but…

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The fungus that erased billions of chestnut trees
History

The fungus that erased billions of chestnut trees

The American chestnut tree once heavily dominated eastern forests until a devastating fungal blight was accidentally introduced in the early twentieth…

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Snow geese fly in large V-formations to conserve energy
Science

Snow geese fly in large V-formations to conserve energy

Instead of flapping on their own merit, these birds shamelessly draft off the one suffering in the front. The leader takes the brunt of the wind resistance…

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Why title insurance rarely pays out
Economy

Why title insurance rarely pays out

When you buy a house, you are forced to purchase a policy protecting against historical ownership disputes. Unlike auto coverage where crashes happen daily,…

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Scoliosis predominantly targets adolescent girls
Health

Scoliosis predominantly targets adolescent girls

Puberty strikes with an incredibly unfair spinal bias. Idiopathic scoliosis, where the spine warps into a massive 'C' or 'S' shape, is nearly ten times more…

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First-class cabins use heavy curtains for isolation
Transport

First-class cabins use heavy curtains for isolation

That thin piece of fabric isn't keeping out the ambient engine noise. It serves the sole purpose of preventing the rest of the passengers from making direct…

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Komodo dragons kill with venom, not dirty mouths
Science

Komodo dragons kill with venom, not dirty mouths

For decades, scientists thought these giant lizards killed prey using gross, bacteria-filled saliva. Nope, it turns out they are just fully venomous. They…

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Massive waterfalls divide two countries
History

Massive waterfalls divide two countries

Iguazu Falls stretches incredibly wide across the border of Argentina and Brazil, splitting into hundreds of separate cascading drops. The deafening roar of…

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Thermal power plants lose massive energy as heat
Economy

Thermal power plants lose massive energy as heat

Burning coal or natural gas to make electricity is spectacularly inefficient. Over half of the energy generated in a standard thermal plant vanishes straight…

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Imaginary spinal snakes make people shake wildly
Myths & mysteries

Imaginary spinal snakes make people shake wildly

Visualizing a coiled serpent at the base of your spine is the quickest way to end up writhing on a yoga mat. Kundalini awakenings supposedly unleash raw…

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The game where your number makes you a target
Games

The game where your number makes you a target

Assigning everyone a number and waiting to hear your name yelled is purely an exercise in anxiety. Once your digit is called, you must frantically grab the…

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Millions of red crabs march across Christmas Island
Science

Millions of red crabs march across Christmas Island

Forgetting that they belong in burrows, an entire island's population of crustaceans aggressively walks toward the water to breed. They crawl over walls, golf…

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A microchip may not help a lost pet
Economy

A microchip may not help a lost pet

Injecting a tiny tracking bead into your cat's neck is great, provided the person finding them has the correct wand. Competing manufacturers use entirely…

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Baseball began as a muddy English pastime
Games

Baseball began as a muddy English pastime

America's beloved pastime owes its existence to Tudor-era dairy workers swinging sticks at cloth bundles. Known as stoolball, it was a casual way to pass the…

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Burning coal releases radioactive material into the air
Technology

Burning coal releases radioactive material into the air

Fear of glowing green rocks is hilarious when you realize burning fossil fuels emits far more radioactive waste into the atmosphere. Natural coal contains…

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How plastic threads become carbon fiber
Technology

How plastic threads become carbon fiber

Creating ultra-lightweight supercar materials requires roasting standard plastic threads in a total vacuum so they do not instantly combust. By slowly heating…

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