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Published directory entries matching your search.
Sign Learner is a free browser extension for learning sign language while browsing the internet. It highlights words on web pages at random, and hovering over a highlighted word shows the corresponding sign in either ASL or BSL. Signs are drawn from a bank of over 6000 signs, and the extension is available from the Chrome Web Store.
SignLex provides educational videos, lessons, tutorials, or self-learning resources.
Signs is a platform for learning American Sign Language with a webcam and AI, offering real-time feedback. Users can also record signs and contribute them to a growing public dataset of ASL videos. The platform is supported by NVIDIA.
SignSchool is a resource for learning American Sign Language online. It offers video-based learning material, interactive exercises, quick lectures and reviews, and a modular curriculum, available on desktop, iOS and Android. The site describes itself as a fun and free resource for learning ASL at one's own pace.
SignWriting provides educational videos, lessons, tutorials, or self-learning resources.
Silver Dev's WPM provides educational videos, lessons, tutorials, or self-learning resources.
Sinosplice is a blog focused on learning Mandarin Chinese, maintained by John Pasden. It offers free resources including a beginner's guide to Chinese pronunciation, a guide to the five stages of learning Chinese, material on learning tones, tone pair drills and Chinese grammar hurdles, alongside articles about life in China.
Siril is an astronomical image processing tool. It supports preprocessing steps such as calibration, stacking and enhancement, and tools for analyzing star brightness variation and astrometry. It can process SER videos and FITS cubes, and algorithms run on all computer cores. Versions are offered for Linux, Windows and macOS.
SitePoint provides educational videos, lessons, tutorials, or self-learning resources.
SKiDL is a Python module for describing the interconnections of electronic circuits and components. The resulting Python program performs electrical rules checking and outputs a netlist used as input to a PCB layout tool.
Skilled.dev provides educational videos, lessons, tutorials, or self-learning resources.
Skills for All provides educational videos, lessons, tutorials, or self-learning resources.
An X account of Gunter Krebs, who identifies himself as a spaceflight historian and analyst, physicist and editor of Gunter's Space Page. The profile states he is also reachable on Mastodon.
Slangit is a slang dictionary service accessible via its website and mobile apps. It provides definitions for thousands of slang terms, acronyms, and abbreviations, with daily updated entries, a term of the day feature, and free offline-capable apps for Android and iOS.
Slate is an AI-powered interactive classroom in which students learn with AI classmates rather than a chatbot. It offers personalised explanations, instant doubt resolution and adaptive courses, with content aligned to NCERT for Indian students. Pricing plans start free with paid upgrades.
SLYNYRD is an animated pixel art gallery of works by Raymond Schlitter. The listed pieces document frame counts, dimensions, color counts and frame timings, including a Titan launch scene from the game Hyper Echelon. Some entries offer prints and merchandise.
SmartCockpit is a free online aviation library offering aircraft-type specific quizzes and information on flight operations and safety. Since 2000 it has aimed to serve professional pilots worldwide, covering topics such as human factors and type rating preparation.
SmashTheStack provides educational videos, lessons, tutorials, or self-learning resources.
Snowday is an education platform that aggregates learning and extracurricular opportunities for U.S. high school students. It hosts a searchable database of over 2,100 programs, including summer, school-year, and competition options, with AI-powered filtering by location, date, and cost, plus curated expert lists and user-submitted reviews.
Sogang provides educational videos, lessons, tutorials, or self-learning resources.
Solar System Scope is an online 3D simulation of the Solar System and night sky in real time, showing the Sun, planets, dwarf planets, comets, stars and constellations. It also offers a free model of the Solar System and night sky with accurate positions of objects. A desktop version and an Android app are available.
SolarHam is a space weather and aurora website founded in 2006. It provides real time data and new updates, including solar indices, imagery, flare probabilities and geomagnetic forecasts. Its help center explains space weather terms such as coronal holes, coronal mass ejections and geomagnetic storms, and notes that the section is being built.
A website providing solutions to the exercises from Hadley Wickham's Advanced R, 2nd edition. It is also the companion site for a print book listed for release in Chapman & Hall's R Series. The work as a whole is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Online Rubik's Cube timer for speedcubing that records solve times with automatic averages. The timer starts and stops by touch or the Spacebar, and an inspection time option is available.
