Science
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Internet Orchid Species Photo Encyclopedia
An alphabetical photo encyclopedia of wild orchid species from around the world, with images and notes on each plant, se…
Interruptions Cost 23 Minutes 15 Seconds, Right?
A myth-busting dig into the famous claim that every interruption costs 23 minutes of focus, tracing the number back thro…
Intersection of Three Circles
Relaxing interactive geometry based on a Numberphile video. Use the mouse to move circles and watch how their intersecti…
Interstellar Wormhole
An interactive wormhole and black hole you can fly through in your browser, with visuals inspired by the ones in the mov…
Interval Calculator
A browser calculator that performs arithmetic over disjoint sets of intervals, showing how uncertain ranges combine and…
In-The-Sky.org
Dominic Ford's astronomy guide with night-sky charts, a live virtual planetarium, and calendars of upcoming celestial ev…
Into the Sky: Cluster Ballooning
A pilot's first-hand account of cluster ballooning, flying across the countryside hanging beneath dozens of helium ballo…
Introducing Flickr PARK or BIRD
A Flickr engineering write-up on building a computer vision system that answers a famous xkcd question: whether a photo…
Introduction to Modern Statistics
A free online textbook that teaches statistics and data analysis from scratch, with worked examples, real datasets, exer…
Introduction to Stochastic Calculus
A beginner-friendly walkthrough of stochastic calculus that builds intuition for random processes through ordinary calcu…
Introduction to the Fourier Transform
A classic illustrated tutorial on Fourier transforms for image processing, showing how images decompose into frequencies…
Intuitive Math
Interactive, visual lessons on linear algebra and other math topics, with draggable diagrams that build geometric intuit…
IO Devices and Latency
An interactive visual journey through the history of storage devices, from tape to NVMe, showing with animations how IO…
Iowa Environmental Mesonet
An Iowa State University weather data hub offering detailed archives, radar loops, and climate tools favored by meteorol…
IPA Reader
A reader for International Phonetic Alphabet notation that speaks transcriptions aloud, handy for learning pronunciation…
IPCC Interactive Atlas
The IPCC's own interactive atlas: pick a region and a warming level to map projected changes in temperature, rainfall an…
IPCC Scenarios
An interactive explorer of IPCC climate scenarios where you can adjust global energy consumption and the energy mix to s…
IPUMS
A University of Minnesota project providing free, harmonized census and survey microdata from over 100 countries for dem…
IQ's Corner
A blog from psychometrician Kevin McGrew sharing research findings and discussion on intelligence theories and tests, fo…
Ireland's Wildlife
An online wildlife and nature portal for the island of Ireland with news, features, species profiles, and product review…
IRENA Renewable Energy Statistics
The International Renewable Energy Agency's open data portal tracking global renewable capacity, generation, and investm…
IRIS Seismic Monitor
A real-time global map of earthquakes plotted moments after detection by a worldwide network of seismographs run by acad…
Iris van Herpen
The collections of couturier Iris van Herpen, whose 3D-printed, laser-cut and sculptural haute couture gowns draw on bio…
Is Everything Conscious?
An essay making the case for panpsychism as a compromise between physicalism and dualism, and explaining why the combina…
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