Bridge Command is a free, open source interactive 3D ship and radar simulator for Windows, Apple macOS and Linux, released under the General Public Licence v2. It is intended as a training tool for navigation, radar, ship handling and other seamanship skills, with configurable ships, buoys, environmental models and scenarios.
CubeDesk is a free online Rubik's Cube timer for speedcubers. It offers WCA-style scrambles, stats and averages, algorithm training and 1v1 racing. The project was released as a desktop app and later became a web app, and its code was made open source.
KataGo Distributed Training hosts the first public-distributed training run of KataGo, an open-source self-play-trained Go engine. Volunteers contribute to continue training from the previous official run, which ended in June 2020. The site provides run updates, downloads, contribution instructions, statistics and networks.
An interactive circle of fifths chart intended as a music theory tool for visualizing scales, notes, chords and keys and their relationships. Users can switch between the major and minor circles, and selecting a key shows scale degrees, relative keys and diatonic chords.
Drawingbooks.org provides free and open drawing and art instruction. It hosts public domain and open source art books, described as legal and free of copyright restrictions in the U.S. Titles listed include The Drawings of D. G. Rossetti, The Human Figure, Constructive Anatomy, and Book of a Hundred Hands.
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.
ARRL is the national association for amateur radio in the United States, connecting radio amateurs with news, information and resources. It covers news and features on emergency communications, technology, contesting and licensing, and publishes magazines including QST.
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CubeDesk is a free online Rubik's Cube timer for speedcubers. It offers WCA-style scrambles, stats and averages, algorithm training and 1v1 racing. The project was released as a desktop app and later became a web app, and its code was made open source.
KataGo Distributed Training hosts the first public-distributed training run of KataGo, an open-source self-play-trained Go engine. Volunteers contribute to continue training from the previous official run, which ended in June 2020. The site provides run updates, downloads, contribution instructions, statistics and networks.
An interactive circle of fifths chart intended as a music theory tool for visualizing scales, notes, chords and keys and their relationships. Users can switch between the major and minor circles, and selecting a key shows scale degrees, relative keys and diatonic chords.
Drawingbooks.org provides free and open drawing and art instruction. It hosts public domain and open source art books, described as legal and free of copyright restrictions in the U.S. Titles listed include The Drawings of D. G. Rossetti, The Human Figure, Constructive Anatomy, and Book of a Hundred Hands.
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.
ARRL is the national association for amateur radio in the United States, connecting radio amateurs with news, information and resources. It covers news and features on emergency communications, technology, contesting and licensing, and publishes magazines including QST.
