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Nobody Has Ever Explained Gravity
gravity is the best-tested idea in physics, drop anything and it falls, every time, forever, and yet no one has ever explained why it happens. Newton refused to guess ("I frame no hypotheses"), Feynman admitted "no one has since given any machinery," and science, strictly, never "proves" a law at all. a short, sourced look at the most precisely measured, least understood fact in science.
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How Old Are You in Space?
enter your birthday and read your age on every planet, counted in that world's own years. one lap of the Sun is 88 days on Mercury and 248 of ours on Pluto, so you are a different age on each, with a next-birthday countdown for every world and, for fun, your age in orbits of the Space Station.
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The First Year
a calm, exhaustively sourced field guide to a baby's first year: feeding, sleep, health, development, safety, and the parent. every claim cited, every chart on real data, and the places the experts disagree shown honestly.
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The Living Ocean
a mostly wordless dive through the ocean in three dozen high-resolution photographs, from tide pools and coral reefs to the deep sea, hydrothermal vents, and creatures named only last year.
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The Brain Behind the Warehouse
behind every "your order has shipped" is a building you have probably never seen and a piece of software that knows where every item inside it is. how that software runs the warehouse and the factory beside it, from the dock door to the assembly line.
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All In
the work that makes people valuable changed; the way we manage them mostly did not. a field guide to managing professionals, and to getting them all in.
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Every Change This Website Ever Made
every commit to this site as a point of light on a three-year timeline. three near-silent years, then a 1,535-change spring eruption, fed by 13.3 billion tokens and counting.
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Obi Juan Algorithm
a million points of math you fly through in 3D: strange attractors, fractals, the prime numbers, and the shadow of a four-dimensional shape.
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The Optional Body
an interactive descent through the parts of the body you can live without, from a spare foot bone to a heart on a machine.
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The Old Masters
a small private gallery. Storms and saints, harvest fields and harbour scenes.
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The Ghost in the Swarm
100,000 particles obey three lines of math on the GPU, while an invisible field steers the swarm through sacred geometry.
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Sluice
my own 2D mining game. This free v15.89 build is the last public version; development is now private, coming to Steam, Summer 2027.
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Daylight Globe
a small WebGL globe for the day/night line, daylight hours, and sunrise/set.
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Rendering Particles Without a Canvas
three physics demos with no canvas, no WebGL, no SVG. The whole renderer is one CSS property on a 1px div.