🔬 Science

priyom.org Website

Priyom.org

A catalogue of shortwave numbers stations and military and diplomatic broadcasts, with schedules, recordings and history…

projecteuler.net Website

Project Euler

A collection of hundreds of challenging mathematical and computer programming problems designed to be solved with clever…

feederwatch.org Website

Project FeederWatch

A Cornell Lab citizen-science project where backyard birdwatchers count feeder visitors each winter to help track bird p…

leapsecond.com Website

Project GREAT Photo Tour

A photo tour of a family expedition that carried atomic clocks up a mountain to test general relativity, with kids, cool…

projectlovelace.net Website

Project Lovelace

A collection of science and math flavored programming problems aimed at beginners, with topics ranging from astronomy an…

psyche.co Website

Psyche

A digital magazine from the publishers of Aeon featuring psychologists and philosophers writing practical guides and ess…

psychmechanics.com Website

PsychMechanics

A psychology site for readers curious about the nuts and bolts of human behavior, with research-informed articles on emo…

psychreg.org Website

Psychreg

A psychology and mental health publication with articles on cognitive and developmental psychology, relationships, thera…

psypost.org Website

PsyPost

An independent psychology and neuroscience news site reporting the latest peer-reviewed research on behavior, cognition,…

pteros.com Website

Pteros

The online museum of pterosaurs, with an illustrated, described entry for every known genus of flying reptile from Aerot…

pylonofthemonth.org Website

Pylon of the Month

A site devoted to electricity pylons, featuring a different tower each month along with writing on transmission networks…

quackwatch.org Website

Quackwatch

A long-running consumer protection site run by a physician that debunks health myths and pseudoscientific claims with ev…

quantum.country Website

Quantum Country

An experimental textbook on quantum computing by Andy Matuschak and Michael Nielsen that embeds spaced-repetition flashc…

quantumfrontiers.com Website

Quantum Frontiers

A blog by Caltech's Institute for Quantum Information and Matter on advances in quantum physics and information, written…

museum.qld.gov.au Website

Queensland Museum

Queensland's state museum of natural and cultural heritage, with collections and research pages, learning resources and…

r4ds.had.co.nz Website

R for Data Science

A free online book that teaches data science with R, covering how to import, tidy, transform, visualize and model data u…

radiopaedia.org Website

Radiopaedia

A free, collaborative radiology reference with thousands of annotated X-ray, CT, and MRI cases contributed by physicians…

ramblingsofanaturalist.blogspot.com Website

Ramblings of a Naturalist

An ecologist's wildlife diary from around Hastings in East Sussex, recording birds, insects, fungi, plants and mammals i…

ratsplaydoom.com Website

Rats Play DOOM

A quirky research project that hooks up lab rats to a virtual reality rig so they can play DOOM, with hardware, software…

rantonels.github.io Website

Raytracing a Black Hole

Striking renders of a black hole with its accretion disk, plus an explanation of how light bends in curved spacetime and…

r-bloggers.com Website

R-bloggers

A blog aggregator collecting news and tutorials from hundreds of R bloggers, a steady feed of data science and statistic…

rcplanes.online Website

RCPlanes Online

A beginner-friendly guide to the basic aerodynamics of radio-controlled planes, explaining how wings, lift, and flight b…

realclimate.org Website

RealClimate

A commentary site where working climate scientists explain new research, rebut misinformation, and respond to developmen…

recentlyextinctspecies.com Website

Recently Extinct Species

A sobering database documenting the thousands of animals, plants, fungi, and even microbes that have gone extinct in rec…