Goldbach's Conjecture Math vs (Open Source) Periodic Table

Discover one of the greatest unsolved problems in mathematics — the Goldbach Conjecture — in an interactive way! This app allows you to explore the conjecture that every even integer greater than 2 can be written as the sum of two prime numbers. Simply enter an even number of your choice, and the app will instantly calculate and display a pair of prime numbers whose sum equals your input. Whether you’re a math enthusiast, a student, or just curious about prime numbers, this app makes it easy to experiment with numbers of any size — from small values to extremely large integers. Features: Enter any even integer greater than 2 to test the Goldbach Conjecture. Fast calculation of prime pairs, even for very large numbers. Elegant, easy-to-use interface designed for quick exploration. Educational and fun — great for students, researchers, and anyone curious about number theory. Supports extremely large integers with warnings when calculations may take longer. Dive into the world of prime numbers and see the Goldbach Conjecture come to life with every calculation!

A clean, free periodic table for chemistry students, teachers, and curious people. Explore all 118 elements in an interactive table, then tap into detailed element cards with atomic, physical, discovery, and isotope data. Switch color modes to see trends across the table, search by name or symbol, compare properties, and use practical tools when homework or curiosity sends you down a chemistry rabbit hole. FEATURES Interactive Periodic Table Pinch, pan, zoom, and tap through the full periodic table with category colors and property heatmaps. Element Quiz Learn symbols, names, atomic numbers, and element families with quick 10-question rounds. Start with the first 20 elements and work up to all 118. Element Details See atomic mass, density, melting point, boiling point, electronegativity, radius, electron shells, discovery facts, isotopes, and more. Safety Data GHS hazard pictograms, signal words, and hazard statements for 77 elements, free. No PRO lock. Search and Lists Find elements quickly by name, symbol, or atomic number. Isotopes Browser Browse thousands of nuclides with half-life, decay, abundance, and nuclear data. Molar Mass Calculator Parse formulas with nested groups and hydrates, then see the element-by-element mass breakdown. Chemistry Tools Balance equations, review common reactions, inspect trends, and use reference tables for ions, solubility, constants, and organic series. Mini Academy and Dictionary Learn core chemistry ideas with compact lessons, glossary entries, and quick checks. No ads. No paywalls. No account required. 100% Open Source The complete source code is public - see it, audit it, or contribute at https://github.com/Open-Apps-Studio/periodic-table