Science
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JThatch.com
A small collection of web projects by Thatcher Chamberlin, including Terrain2STL for 3D printing real terrain, a gravity…
JuliaScope
A fractal graphing calculator that goes beyond the Z squared plus C formula, letting you plot and explore any fractal yo…
Jupiter Structural Layer Cake
A baker builds a spherical cake whose slice reveals the internal structure of Jupiter, layer by layer, with photos of th…
Jurassic Park Dinosaurs Illustrated With Modern Science
A paleo-illustrator walks through every dinosaur from the Jurassic Park films and redraws each one as modern science say…
Just a Minute
Press space, wait until you think exactly one minute has passed without looking at a clock, and find out how far off you…
Just How Bad Is Sleep Deprivation?
A parallax-scrolling timeline that walks through the day-by-day effects of going without sleep, from the first missed ni…
Just Intonation Keyboard
A browser music keyboard laid out by rational frequency ratios so you can see harmony and play pleasing chords without a…
K8CX QSL Card Gallery
A vast online museum of ham radio QSL cards, the postcards operators mail to confirm contacts, covering every country si…
Kala
A clock that visualizes the passing of time in dozens of units, from blinks, helek and microcenturies to fortnights, gig…
Kalman Filter Explained Simply
A picture-driven walkthrough of the Kalman filter that explains how it blends noisy measurements with predictions, using…
Kalman Filter from the Ground Up
A friendly, example-driven tutorial that builds up the Kalman filter step by step, from simple averaging to tracking rea…
Kaspersky Cyberthreat Map
A hypnotic real-time 3D globe visualizing malware detections and cyberattacks streaming across the world as they happen.
Kasuba Works
An archive of artist Aleksandra Kasuba, who built tensile fabric live-in environments, shell dwellings and experimental…
Kate Kato
Paper artist Kate Kato builds life-sized insects, seed pods and plants from recycled paper, displayed in delicate cabine…
Kate MacDowell
Porcelain sculptures that fuse human bodies with animals and plants, from hearts sprouting roots to fragile white creatu…
Katie Scott
Portfolio of illustrator Katie Scott, whose meticulous botanical and anatomical drawings in the style of vintage science…
KC2G Propagation Maps
Live global maps of ionospheric conditions, showing the maximum usable frequency for radio signals, built for ham radio…
KeepTrack
An open-source interactive 3D visualization of every tracked object in Earth orbit, built for exploring satellites and s…
Ken Shirriff's Blog
Ken Shirriff's blog reverse engineering vintage chips and hardware, from Apollo guidance computers to microscopic die ph…
kepler.gl
A free browser-based tool for building large-scale, animated 3D maps from your own geospatial datasets, originally built…
Kestrel's Plausible Facts
A personal collection of lightly researched curiosities, from why Canadians call electricity hydro to the last duel in C…
Khaled Abou Alfa
A Toronto engineer's personal site since 2004, collecting his comics, fiction, photos, journal entries and a publication…
Kieran Healy
The site of Duke sociologist Kieran Healy, home to writing on sociology, data visualization, and statistics, with clear…
Kindred Britain
An explorable network of nearly 30,000 people from British history linked by blood and marriage, letting you trace how A…
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