Education
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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…
Investment Calculator
A simple retirement calculator that projects the potential value of your investments from a few inputs and charts how th…
Investor.gov
The US Securities and Exchange Commission's plain-language education site with compound interest calculators and guides…
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 Chart App
A clean interactive International Phonetic Alphabet chart where every symbol can be clicked to hear its sound and a samp…
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…
iPhone Photography School
Tutorials on improving iPhone photography and photo editing, with tips on composition, light, and apps that help you sho…
IQ's Corner
A blog from psychometrician Kevin McGrew sharing research findings and discussion on intelligence theories and tests, fo…
Irama Nusantara
A digital archive of Indonesian popular music, preserving and presenting releases and artists from the country's pop sce…
IRemember Wall
Yad Vashem's remembrance wall pairs each visitor with the name and story of an individual Holocaust victim from the Shoa…
IRIS Seismic Monitor
A real-time global map of earthquakes plotted moments after detection by a worldwide network of seismographs run by acad…
Iris's London
An interactive map of Iris Murdoch's London, plotting the real streets, pubs and houses that appear in her novels, with…
Irrational Labs
A behavioral economics consultancy co-founded by researchers who share free frameworks and case studies on applying beha…
Is Everything Conscious?
An essay making the case for panpsychism as a compromise between physicalism and dualism, and explaining why the combina…
Is It a Jewish Holiday Today?
A single-purpose page that answers one question with a big yes or no: is today a Jewish holiday, and if so, which holida…
Is Police Misconduct a Secret in Your State?
A WNYC investigation that maps which US states keep police misconduct and disciplinary records secret and which open the…
isthatinthebible.wordpress.com
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Is That in the Bible?
Critical, scholarly articles examining what scripture actually says and how it fits its historical setting, with charts…
Is this a good book for me, now?
A short essay arguing that a book has no fixed objective value, only value to a particular person in a particular contex…
Isaac
Free 3D physics simulations you can change in real time, from a thrown ball to a black hole, by adjusting gravity, speed…
Isaac Newton's Works
The Newton Project's index of Newton's writings, from alchemy and mathematics to religion and science, with transcriptio…
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