curio

Every card on Curio

148 short reads, grouped by category. 128 link to a source; 20 do not. The app shuffles them; this page just lists them — and the source ledger shows the full count.

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science21

• A Wall Sit Shakes When Force Wobbles
• An octopus has three hearts and blue blood
• Archaeologists found 3,000-year-old honey still edible
• Bananas are slightly radioactive
• Every time you remember something, you change it
• Hot water can freeze faster than cold
• How Myelin Makes Nerve Signals Jump
• How Penguins Keep Their Feet Warm
• It rains diamonds on Neptune
• People feel limbs that aren't there
• Soap Does Not Dissolve Grease
• The brain can't feel pain
• There's an animal that survived open space
• Why a Fan Cools You but Not the Room
• Why Do Cut Apples Turn Brown?
• Why Metal Feels Colder Than Wood Indoors
• Why Pressure Cookers Push Water Past 100°C
• You are almost entirely empty space
• You live half a second in the past
• Your brain eats itself to stay sharp
• Your gut has its own nervous system

psychology16

• A Crowd Is a Clue, Not a Verdict
• A Task Switch Leaves Focus Behind
• Ask for a favor to make someone like you
• Embarrassment can feel like pain
• Lateness Can Look Like Character
• Losing $20 hurts more than finding $20 feels good
• Nobody noticed your worst moment
• Random Inbox Rewards Train the Habit
• Remove the Cue Before the Craving
• The Laptop Gets Better After You Buy It
• The less you know, the more sure you feel
• The Planning Fallacy Needs Old Projects
• The Verb That Rewrites a Witness
• You don't remember experiences — you remember two moments
• You like things just because they're familiar
• Your brain hoards unfinished tasks

history15

• A clockmaker solved a problem that sank fleets
• A single tulip bulb once cost more than a house
• Australia lost a war against birds
• Cleopatra lived closer to the Moon landing than to the pyramids
• Factory women were told to lick radioactive paint
• How a Map Narrowed Cholera to One Pump
• Jenner Tested Cowpox Against Smallpox
• Oxford was teaching before the Aztec Empire existed
• The 1807 Law Banned Trade, Not Slavery
• The 1973 Oil Shock Made Efficiency Visible
• The Berlin Airlift Kept West Berlin Supplied
• The Eiffel Tower Outlived the Protest
• The Guns That Undid the Theodosian Walls
• The Library of Alexandria didn't burn down in a night
• What the Triangle Shirtwaist Fire Changed Forever

facts15

• A day on Venus is longer than its year
• A Watched Raven Moves the Food
• Birds are building nests out of drone cable
• Hawaii moves toward Japan every year
• How a Sea Slug Steals Sunlight
• How Glass Frogs Hide Their Blood
• Sharks are older than trees
• The Eiffel Tower is taller in summer
• The Frozen Secret of Wood Frogs
• The sailing stones of Racetrack Playa
• The tree that gives no warning
• There are more stars than grains of sand on Earth
• Why Bananas Are Berries but Strawberries Are Not
• Why water stops acting like water
• Wombats produce cube-shaped poop

horror14

• Every old phone holds a last photo nobody meant to take
• Every Windshield Showed Owen Behind Himself
• The Card in Her Handwriting
• The Footprints Crossed the Attic
• The Frozen Frame
• The Hotel Door Was Dated Tomorrow
• The Knocking Under Clear Ice
• The man who smiled at the end of the street
• The Silent Companion
• The Speaker Answered Before Lena Spoke
• The Unplugged Spin
• There's a condition where people believe they're dead
• Victorians were so afraid of being buried alive they built escape bells
• We've mapped Mars better than our own ocean floor

money12

• A $600 Repair Tests Whether Savings or Interest Pays
• A Fund Fee Can Cost Money Without Sending a Bill
• A Mortgage Point Is a Bet on Staying Long Enough
• A Tax Refund Started as Your Paycheck
• Cheap things often have the highest cost
• Define 'enough' before the world does it for you
• Most businesses don't die from low profit — they die from no cash
• The Bigger Package Can Still Cost More Per Ounce
• The Hidden Cost of Buy-Now-Pay-Later Plans
• Waiting one decade can cost you half your fortune
• Why a $25 Minimum Barely Moves a $1,000 Balance
• Your coffee isn't why you're broke

books10

• Name the Event Before the Story
• Some things get stronger when you stress them
• The ability to focus is becoming rare — and valuable
• The last human freedom can't be taken from you
• The Martian Turns Survival Into Math
• Why Atul Gawande Wrote a Checklist Book
• Why Omelas Needs One Child
• Why Wider Roads Fill Back Up
• You don't rise to your goals — you fall to your systems
• You have two minds, and the loud one is usually wrong

career9

• 'Follow your passion' is risky advice
• A Decision Note Stops Memory Drift
• A Promotion Case Needs New Scope
• In a negotiation, silence is a tool
• One Name Makes a Task Real
• People don't quit jobs — they quit unclear expectations
• The most useful sentence at work: 'What am I missing?'
• What Should Happen by Day 90?
• You don't need to be the best — you need a rare combination

mystery9

• A 2,000-year-old computer was found in a shipwreck
• A 600-year-old book no one can read
• In 1518, a town danced until people died
• Sailing Stones Move on Thin Ice
• Some people hear a hum no instrument can find
• Tunguska Was an Airburst, Not a Crater
• Voynich Patterns Are Not a Translation
• We heard one strong signal from space — once
• What the Mary Celeste Actually Left Behind

news7

• A Ready Solar Project Can Still Wait
• Data Centers Need Power Before Chips
• How a Building Buys an Afternoon Off the Grid
• LFP Batteries Trade Range for Staying Power
• Rooftop Solar Has to Fit the Local Grid
• Why Content Delivery Networks Speed Up Your Internet
• Why One AI Answer Can Cost More Than Another

startup7

• Every founder should know one number cold
• It's better to have 100 users who love you than a million who like you
• Most startups fail by building something nobody asked for
• The best startups start by doing things that don't scale
• The goal isn't to look big — it's to not need anyone
• What Users Hack First
• Why Workarounds Reveal Your Next Product

philosophy6

• Why Chesterton Wouldn't Remove the Fence
• Why Desire Dies After You Get It
• Why Nozick Wouldn't Enter the Machine
• Why Occam's Razor Can Still Be Wrong
• Why Rawls Hid Your Name From Justice
• Why Stoics Imagined Losing Everything

hidden5

• A $5 Shipping Fee Can Sour a $40 Basket
• Disneyland's Queues Bend on Purpose
• Elevator Mirrors Made the Wait Feel Shorter
• IKEA's Blue Arrows Lead Shoppers Past Sofas
• Why You Pick the Middle Option

truestories2

• The 33,000-Foot Fall of Vesna Vulović
• The Empty Lighthouse at Flannan Isles