Useful reference information for a wide range of subjects for school, study and everyday life in a very small app. The app is continuously updated based on user feedback. Current contents: Science Reference: * Political World Map/Atlas (zoomable) * Human Skeleton (zoomable) * Periodic Table of Elements (PTE) * Planets of the Solar System * Units of the Metric System * Geological Ages US: * American Constitution * Bill of Right * Amendments * Declaration of Independence * Gettysburg Address * Presidents * Military Ranks * Miranda Rights * The 50 states Alphabets Reference: * Spelling * Morse Code * Braille * Russian, Greek, Hebrew, Sanskrit, Thai Math Reference: * Table of derivatives * Binomial identities * Series * Logarithms * Boolean Algebra * Complex Numbers Trigonometry Reference: * Trigonometric identities