Science
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AA5TB
A ham radio operator's site running since 1998, full of homebrew antenna designs and explanations, amateur radio rules a…
Aaronson Oracle
A prediction game where you press keys at random while a simple oracle tries to guess your next press, showing how hard…
Aaronson Oracle
Press keys at random and an online oracle tries to predict your next choice, built on Scott Aaronson's idea that a simpl…
AASM Sleep Blog
A blog from the American Academy of Sleep Medicine, with articles by sleep experts on the latest research, healthy habit…
Aatish Bhatia
The interactive essay collection of physicist and journalist Aatish Bhatia, letting you play with simulations covering p…
AAVSO
The American Association of Variable Star Observers coordinates a global network of amateurs who submit real brightness…
Abacus: Mystery of the Bead
A thorough online manual to the Japanese soroban and Chinese abacus, with history, addition, subtraction, multiplication…
Abakcus
A hand-picked curation site for math and science, collecting videos, tools, books, articles, and gadgets that surprise c…
Abandoned Mine Models
Detailed 3D computer models recreating abandoned and some working mines, letting you explore the hidden underground heri…
Abbey the Food Scientist
A blog by a food scientist sharing the science behind how food is cultivated, formulated, and produced, explained in pla…
Abelardo Morell
Photographs from rooms turned into camera obscuras, with city skylines projected across bedroom walls, plus tent-camera…
Absorptions
A personal blog about signals, programming, music, and other stuff, with detailed technical write-ups for the endlessly…
Academic Life in Emergency Medicine
A free education site for emergency medicine providers and trainees, with blog posts and teaching resources on acute car…
Academic Torrents
A distributed repository where researchers share enormous datasets, from machine learning corpora to video collections a…
Academo
A free collection of interactive educational demos spanning physics, math, and engineering, from Fourier synthesis to gr…
ACARS Drama
A live feed of the odd, funny and tense text messages that airplanes and ground stations exchange over ACARS, with a glo…
Accurat
The portfolio of an Italian design studio known for richly illustrated, hand-crafted data visualizations covering cultur…
Acko.net
Steven Wittens' site famous for its animated WebGL header and mathematically rich essays on graphics programming, signal…
Acme Klein Bottle
A real family business hand-blowing glass Klein bottles, with deadpan humor, math jokes and a long story about fighting…
ACNR
A UK-based, peer-reviewed open access neurology journal covering advances in clinical neuroscience and rehabilitation, w…
Acoustic Location and Sound Mirrors
A richly illustrated page on the strange giant ear trumpets, horns and concrete sound mirrors used to hear approaching a…
Across The Multiverse
A free in-browser 3D game where you fly between procedurally generated universes, landing on alien planets and exploring…
Active Wild
A wildlife and science site for kids and adults with facts on animals, habitats, and the natural world, from rainforest…
Adventures in Cognitive Biases
A text adventure at a monastery where a monk trains you to defeat thinking errors like overconfidence and base rate negl…
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