Science
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CosmoBC AstroBlog
A blog about astronomy and space exploration with astronomy pictures and articles on astrophysics, the solar system, sta…
CosmoQuest
A citizen-science platform where volunteers help map craters and features on the Moon, Mars, and other worlds using real…
Cosmos Magazine
An Australian science magazine delivering accessible news and features on space, nature, physics, and technology from th…
COSMOS-Web DR1 Viewer
A zoomable viewer for the COSMOS-Web survey of the deep sky from the James Webb Space Telescope, letting you pan across…
Costa Rica Living and Birding
A blog of information and perspectives on birding in Costa Rica, from a resident birder sharing sightings, local knowled…
Cotswold Diary
A diary of nature recovery and community conservation in the Cotswolds, following wildflower grassland seeding, wildlife…
Could We Stop Yellowstone from Erupting?
A back-of-the-envelope engineering look at whether drilling heat out of the Yellowstone supervolcano could prevent an er…
Counting People with Machine Learning
A project write-up on counting foot traffic from IP webcam feeds with machine learning, walking through the detection ap…
Courtenay Museum & Paleontology Centre Blog
A museum blog from Vancouver Island covering Cretaceous marine reptile fossils, local natural and cultural history, lect…
Courtney Mattison
Ceramic sculptor Courtney Mattison builds huge, hand-formed porcelain coral reefs that bleach and bloom across gallery w…
Covid City
A data visualization that compares each country's covid deaths to the population of a city in that country, making the s…
Covid19Map.us
A zoomable, explorable map of COVID-19 cases across the United States with historical data, for replaying how the pandem…
Craig P. Burrows Photography
Flowers photographed under ultraviolet light so they glow in neon blues, pinks and greens, plus infrared landscapes and…
Cray-1 vs Raspberry Pi
Roy Longbottom benchmarks the legendary Cray-1 supercomputer against modern home computers, phones and tablets, showing…
Creature Creator
A simulation where you design creatures and watch them evolve, using a genetic algorithm and neural networks to learn ho…
Crime Pays But Botany Doesn't
Plant-obsessed botany site with videos, a how-to on taking herbarium specimens, a native plant nursery directory, a bota…
Cristina Mittermeier
Conservation photographer Cristina Mittermeier shares galleries of ocean life, polar landscapes, wildlife and Indigenous…
Critter Camera
A browser-based motion detector that watches your webcam and captures images whenever something moves, with nothing to i…
Cryptopals Crypto Challenges
A famous set of forty-eight hands-on programming challenges that teach modern cryptography by having you break real-worl…
CS 189 Introduction to Machine Learning
The public course site for UC Berkeley's introduction to machine learning, with lecture slides, notes, discussion worksh…
CS261: A Second Course in Algorithms
Course page for Tim Roughgarden's Stanford course with lecture notes, problem sets and readings on network flow, linear…
CT Scan of a Pumpkin
A hospital team ran a 5.9 kg pumpkin through a GE CT scanner and posted the results: cross-section slices, 3D renderings…
Cumulonimbus Mammatus - Names of Clouds
A photo-led guide to mammatus clouds, the pouch-like bulges hanging under storm anvils, part of a site that names and ex…
Curiosity Telescope Log
A terminal-styled build log of a hand-made 6 inch Newtonian reflector telescope, covering design, fabrication and learni…
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