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The Engineering ToolBox provides free tools, calculators and information resources for engineering and design of technical applications. It covers fields such as fluid mechanics, material properties, HVAC systems and electrical engineering, including unit conversion and system design. Sections span topics from acoustics to hydraulics, aimed at students and professionals.
Mathispower4u is a site by James Sousa offering over 9,000 free mini-lessons and example videos, organized by course and topic. The videos are closed captioned, and the site links to YouTube playlists by course. Content covers number sense, algebra, geometry, trigonometry, calculus, statistics and other topics.
LAMMPS is a classical molecular dynamics simulator focused on materials modeling, distributed as open source under GPLv2. It provides potentials for solid-state materials and soft matter, and can model atoms or act as a parallel particle simulator at atomic, meso or continuum scale. It runs on single processors or in parallel using message-passing techniques, with some models accelerated on CPUs and GPUs.
Mathematical Olympiads Discord Server (MODS) is a Discord server founded in January 2019 for Mathematical Olympiad enthusiasts of all ages to learn and socialise. Its staff post a problem-of-the-day, host monthly contests, and organise other server activities. It is part of the International Science Olympiad Discord Network.
Av8n.com hosts the site of John S. Denker, including See How It Flies, a work on the perceptions, procedures, and principles of flight with 20 chapters and over 200 illustrations. It also offers more than 100 physics-related documents, additional flying-related documents, and notes on vision and image processing.
iNaturalist is a free, nonprofit social network for naturalists where users record observations of plants, animals, and fungi, share them with friends and researchers, and get identification suggestions confirmed by a global community. Observations become open data used by scientists and conservationists.
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The Engineering ToolBox provides free tools, calculators and information resources for engineering and design of technical applications. It covers fields such as fluid mechanics, material properties, HVAC systems and electrical engineering, including unit conversion and system design. Sections span topics from acoustics to hydraulics, aimed at students and professionals.
Mathispower4u is a site by James Sousa offering over 9,000 free mini-lessons and example videos, organized by course and topic. The videos are closed captioned, and the site links to YouTube playlists by course. Content covers number sense, algebra, geometry, trigonometry, calculus, statistics and other topics.
LAMMPS is a classical molecular dynamics simulator focused on materials modeling, distributed as open source under GPLv2. It provides potentials for solid-state materials and soft matter, and can model atoms or act as a parallel particle simulator at atomic, meso or continuum scale. It runs on single processors or in parallel using message-passing techniques, with some models accelerated on CPUs and GPUs.
Mathematical Olympiads Discord Server (MODS) is a Discord server founded in January 2019 for Mathematical Olympiad enthusiasts of all ages to learn and socialise. Its staff post a problem-of-the-day, host monthly contests, and organise other server activities. It is part of the International Science Olympiad Discord Network.
Av8n.com hosts the site of John S. Denker, including See How It Flies, a work on the perceptions, procedures, and principles of flight with 20 chapters and over 200 illustrations. It also offers more than 100 physics-related documents, additional flying-related documents, and notes on vision and image processing.
iNaturalist is a free, nonprofit social network for naturalists where users record observations of plants, animals, and fungi, share them with friends and researchers, and get identification suggestions confirmed by a global community. Observations become open data used by scientists and conservationists.
