Half Cat Rocketry is an X account with 730 posts describing itself as lowering the barrier to entry into amateur liquid rocket engines. The account links to HalfCatRocketry.com and was joined in July 2021.
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WebGL Water is a browser demo by Evan Wallace that renders water with raytraced reflections and refractions, an analytic ambient occlusion, a heightfield water simulation, soft shadows and caustics. Users can draw on the water to make ripples, drag the background to rotate the camera, and press keys to pause or change light direction and gravity. It requires a decent graphics card and up-to-date drivers.
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WebGL Water is a browser demo by Evan Wallace that renders water with raytraced reflections and refractions, an analytic ambient occlusion, a heightfield water simulation, soft shadows and caustics. Users can draw on the water to make ripples, drag the background to rotate the camera, and press keys to pause or change light direction and gravity. It requires a decent graphics card and up-to-date drivers.
CommonOrganicChemistry is a website that presents reaction mechanisms, procedures, and details for commonly encountered organic chemistry reactions. It also lists common reagents, purification resources and links, jobs, internships, and chemical suppliers, CROs and CMOs.
Physics Aviary provides a collection of interactive tools for physics education, including graphing aids, circuit visualizers and simulations. Programs can be opened by clicking a picture or title, and a search engine helps locate a particular tool.
Periodic Table App is an interactive web application for the periodic table of elements. It allows users to search elements and view detailed information about their properties, orbitals and isotopes. The interface is designed for mobile devices and the app can work offline.
OpenFOAM is free, open source computational fluid dynamics software written in C++, owned by the OpenFOAM Foundation and distributed under the General Public Licence. It calculates fluid motion and forces, heat transfer, thermodynamics and chemistry in fluids and solids. It is produced by the core maintenance team at CFD Direct and is used in industry, government research and academia.
OneZoom is an interactive tree of life explorer that shows how all life on Earth is related on a single zoomable page. Each leaf represents a different species, and branches illustrate evolution from common ancestors. The site offers guided tours and is a registered non-profit in the UK with products available for free.
