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.
ACS Stop the Bleed offers training courses on controlling life-threatening bleeding. The course covers recognizing bleeding and three techniques: direct pressure, wound packing and tourniquet application. Online and virtual options are available, and instructors teach in person with training materials.
LunchBox Sessions is an industrial training library focused on hydraulic and electrical troubleshooting. It offers lessons, 3D videos, quizzes, puzzles and interactive Live Schematic simulations covering basics, schematic reading, components and measurements. A Standard Membership costs $29/month or $249/year and includes unlimited access to all materials. An Instructor Membership is required to show materials to other people.
MolView is a chemistry web tool for sketching and viewing small molecules, with live 3D synchronization while sketching and multiple structures side by side. It includes Lewis structures, reaction diagrams, spectroscopy data, crystallography loading, protein viewing and calculations such as MEP surfaces and energy minimization. A new version has been developed since 2024, while an older app remains available.
My Balsa & Glass Workshop is a personal site describing RC Balsa model aircraft building, stained glass artistry, and 3D modeling and printing. It includes scratch-built balsa RC model build descriptions, photo galleries, and links to plans and modeling resources. The builder states 37 years of RC model experience.
A reference site collecting rules of basic algebra with explanations and examples for each equation. It covers rules for arithmetic, exponents and radicals, stating that these simple rules can be used to solve most basic algebra problems.
MathOnline is a Wikidot site offering notes on undergraduate mathematics topics, including calculus, linear algebra, topology and number theory. The notes include examples and visuals, and the author states pages may contain typos or errors.
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ACS Stop the Bleed offers training courses on controlling life-threatening bleeding. The course covers recognizing bleeding and three techniques: direct pressure, wound packing and tourniquet application. Online and virtual options are available, and instructors teach in person with training materials.
LunchBox Sessions is an industrial training library focused on hydraulic and electrical troubleshooting. It offers lessons, 3D videos, quizzes, puzzles and interactive Live Schematic simulations covering basics, schematic reading, components and measurements. A Standard Membership costs $29/month or $249/year and includes unlimited access to all materials. An Instructor Membership is required to show materials to other people.
MolView is a chemistry web tool for sketching and viewing small molecules, with live 3D synchronization while sketching and multiple structures side by side. It includes Lewis structures, reaction diagrams, spectroscopy data, crystallography loading, protein viewing and calculations such as MEP surfaces and energy minimization. A new version has been developed since 2024, while an older app remains available.
My Balsa & Glass Workshop is a personal site describing RC Balsa model aircraft building, stained glass artistry, and 3D modeling and printing. It includes scratch-built balsa RC model build descriptions, photo galleries, and links to plans and modeling resources. The builder states 37 years of RC model experience.
A reference site collecting rules of basic algebra with explanations and examples for each equation. It covers rules for arithmetic, exponents and radicals, stating that these simple rules can be used to solve most basic algebra problems.
MathOnline is a Wikidot site offering notes on undergraduate mathematics topics, including calculus, linear algebra, topology and number theory. The notes include examples and visuals, and the author states pages may contain typos or errors.
