Education
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Dana Foundation
A nonprofit publishing accessible articles on neuroscience discoveries, brain health, and the societal implications of e…
Darwin's Children Drew All Over On the Origin of Species
A short history piece on how Darwin's kids filled the back of his manuscript pages with doodles of pink birds and carrot…
DataGenetics
A blog of sharply written essays on puzzles, probability, and game strategy, unpacking things like why lottery number ch…
Death by PowerPoint: the slide that killed seven people
How a dense PowerPoint slide buried a crucial warning about foam damage before the Columbia disaster, and what it teache…
Debt, Debauchery and Decadence: King George IV
Historian Catherine Curzon recounts the extravagant life of George IV, from colossal gambling debts and a secret marriag…
decomP magazinE
A long-running online literary magazine publishing free flash fiction, poetry, and visual poetry, with an archive stretc…
Deep Sea News
A long-running blog written by marine biologists explaining bizarre deep-sea creatures, ocean research, and conservation…
Degenerate Matter: How Reality Deals With Uncertainty
A casual introduction to the uncertainty principle from quantum mechanics and how it shapes the behavior of matter, writ…
Design Tradeoffs
Course notes from the Computation Structures series on the tradeoffs engineers weigh when designing digital systems, suc…
Diabolical Plots
A speculative fiction magazine and blog publishing free short stories alongside quirky lists and essays for writers abou…
Diffractive Chocolate
Instructions and the science behind chocolate with a microscopic grating that splits light into rainbow colors, from the…
Discrete Logic Network Card
A build log of a 10BASE-T Ethernet transceiver made entirely from discrete logic chips, with schematics, scope traces an…
Divide by Depth for Instant 3D
A friendly walkthrough of how 3D cameras and perspective actually work in games, showing that dividing by depth is the t…
Don't Mess with a Genius
A short, entertaining math-history anecdote about Isaac Newton and the puzzle he answered when others stumbled, with the…
Doomsday Algorithm
A step-by-step guide to John Conway's Doomsday Algorithm, which lets you work out the day of the week for any date in yo…
Double-Entry Bookkeeping as a Directed Graph
An explainer that recasts double-entry bookkeeping as money flowing along a directed graph of accounts, making debits an…
Doublepreps
The Horniman Museum explains doublepreps, odd natural history specimens that pair skeleton and taxidermy so you can see…
Douglas Hegdahl
The record of Douglas Hegdahl, a young sailor held in North Vietnam who played dumb so convincingly he was released, car…
Downzoning Chicago
A research article by Yonah Freemark and George Kisiel on how postwar downzoning in Chicago reduced housing construction…
Drift Towards Danger and the Normalization of Deviance
Explains Rasmussen's model of practical drift, how organizations slide toward unsafe operations and normalize rule-break…
Driving Faster Takes Longer
A math blog post that starts from a simple question about speeding between Boston and New Haven and arrives at a surpris…
Dune as Plato's Republic Reimagined
A reader's essay on the last Dune novels, Heretics and Chapterhouse, arguing that they reimagine Plato's Republic and it…
Early Modern Texts
Simplified, readable versions of classic philosophy texts by Descartes, Hume, Kant, and others, edited for clarity witho…
Early US and Russian Power Reactors
A clear illustrated history of the first commercial nuclear reactors in the United States and Russia, from the EBR-1 exp…
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