periodic-table.org is an educational resource for documentaries, courses, books, reference material, or self-learning.
The WebQC Balance Calculator is an online tool for balancing chemical equations, offering step-by-step solutions by inspection and by the algebraic method. It also reports reaction type, stoichiometry and limiting reagent. Users enter an equation or reagents and click to balance.
A project for an amateur-built liquid fueled rocket engine and flight vehicle, with a site covering engine designs, igniters, a rocket, test stand and software. A launch of Rocket 1 reached 10,800 ft after about 10.5 seconds of engine run time.
The Useful Tropical Plants Database contains information on the edible, medicinal and other uses of several thousand plants grown in tropical regions. It is a work in progress, with records added and updated regularly. It currently lists 13362 species, and information is fully referenced.
Ptable is an interactive periodic table of the elements showing names, electrons and oxidation states. It offers visualization of trends, 3D orbitals and isotopes, and allows users to mix compounds, with fully descriptive writeups.
WebElements presents the periodic table of the elements. The table arranges the chemical elements by atomic number so that periodic properties are made clear, and each entry gives the element's symbol, atomic weight and name.
RCPlanes Online is a site about radio-controlled model aircraft. It offers a basic aerodynamics guide, a beginners' guide and useful information about RC planes. It also provides calculators for center of gravity, wing loading, motor and propeller combinations, propeller static thrust, and plane performance.
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The WebQC Balance Calculator is an online tool for balancing chemical equations, offering step-by-step solutions by inspection and by the algebraic method. It also reports reaction type, stoichiometry and limiting reagent. Users enter an equation or reagents and click to balance.
A project for an amateur-built liquid fueled rocket engine and flight vehicle, with a site covering engine designs, igniters, a rocket, test stand and software. A launch of Rocket 1 reached 10,800 ft after about 10.5 seconds of engine run time.
The Useful Tropical Plants Database contains information on the edible, medicinal and other uses of several thousand plants grown in tropical regions. It is a work in progress, with records added and updated regularly. It currently lists 13362 species, and information is fully referenced.
Ptable is an interactive periodic table of the elements showing names, electrons and oxidation states. It offers visualization of trends, 3D orbitals and isotopes, and allows users to mix compounds, with fully descriptive writeups.
WebElements presents the periodic table of the elements. The table arranges the chemical elements by atomic number so that periodic properties are made clear, and each entry gives the element's symbol, atomic weight and name.
RCPlanes Online is a site about radio-controlled model aircraft. It offers a basic aerodynamics guide, a beginners' guide and useful information about RC planes. It also provides calculators for center of gravity, wing loading, motor and propeller combinations, propeller static thrust, and plane performance.
