Education
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Colleen Young Maths Blog
A maths teacher's blog full of classroom resources, teaching methods, and technology tips for learning mathematics, writ…
College Compendium
A curated collection of free and open source computer science courses from top American colleges, for learning at your o…
Collision Detection
An online book with live canvas demos that teaches how objects collide in games and simulations, from points and circles…
Colonial Williamsburg
A living-history museum recreating eighteenth-century colonial Virginia, with online articles on daily life, trades, and…
Color & Contrast
An interactive guide to color for interface designers, with hands-on demos of hue, saturation, contrast and color percep…
Color In My Piano
A blog by Joy Morin about excellence in piano teaching, with ideas, inspiration, and resources for teachers and their st…
Color Landform Atlas of the United States
An atlas of shaded-relief landform maps for every US state, color coded by elevation, with county outlines, satellite vi…
Color Parrot
An explorable dictionary of color names that shows history, related shades and the stories behind names, handy for brows…
Color Wheel Calculator
A color wheel tool from Sessions College that generates palettes by picking primary, secondary, complementary, and analo…
ColorBrewer
A classic interactive tool for choosing color schemes for maps and charts, showing how each palette looks across differe…
Colour Literacy Project
Free colour education from the Colour Literacy Project, with clear fundamentals of how colour works, hands-on exercises…
Combination Sum Calculator
A calculator that takes a list of numbers and shows every combination of them that adds up to a target value, handy for…
Combining 143 World War II Movies into One Series
A detailed making-of post explaining how 143 World War II films were cut together into a single chronological supercut,…
Combustion Lab
A browser-based internal combustion engine simulator where you build an engine, watch the pistons run and read real ther…
Comedy Theory
An attempt at a structured theory of how comedy works, breaking jokes into repeatable mechanics so that writing them bec…
Comics Devices Library
An online library classifying the visual narrative devices used in comics, from speed lines to panel tricks, each illust…
Command Line Handbook
A free handbook that teaches modern command line tools and workflows, from navigating files and searching text to script…
Commercial Pattern Archive
The Commercial Pattern Archive at the University of Rhode Island, with thousands of historic clothing patterns from 1854…
commitmentocostumes.blogspot.com
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Commitment to Costumes
Blog of costume historian Sara Rivers Cofield about antique clothing finds, including the mysterious coded note hidden i…
Common Bugs in Writing
A practical checklist by a computer science professor of the most frequent mistakes in technical and academic prose, fro…
Common Edge
A nonprofit platform publishing critical essays on architecture and urban design meant to connect the profession's ideas…
Common Errors in English Usage
Professor Paul Brians's classic A to Z guide to the words and phrases English speakers most often mix up, from affect an…
Common Organic Chemistry
A reference covering reaction mechanisms, procedures, and details for commonly encountered organic chemistry reactions,…
Commoncog
Cedric Chin's essays on business expertise, examining how great operators actually learn, decide, and get better at thei…
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