Periodic Table vs Learning transistor

Stop memorizing the periodic table. Start understanding it. Ever struggled to make sense of 118 elements, confusing electron configurations, and endless chemical equations? Periodic Table - Chem AI turns chemistry from memorization into real understanding — with an AI tutor that actually explains the "why" behind every element. INTERACTIVE PERIODIC TABLE — Every element at your fingertips - All 118 elements with detailed properties, isotopes, and compounds - Tap any element for instant atomic data, electron configuration, and history - Color-coded by element category for visual clarity - Filter by state, group, or property CHEMAI — Your personal AI chemistry tutor - Ask anything: "Why can carbon form 4 bonds?" and get clear, step-by-step answers - Snap a photo of your homework and get instant help - Not just answers — real explanations that help you learn - Personalized to your level: beginner to advanced AR ATOM VIEWER — See atoms come alive - Place 3D atom models on your desk with augmented reality - Rotate, zoom, and explore electron orbitals in real space - The perfect way to visualize what textbooks can't show MOLAR MASS CALCULATOR — Instant results - Type any formula (H₂SO₄, C₆H₁₂O₆) and get molar mass instantly - Full element breakdown with individual contributions - Custom chemistry keyboard for fast formula input EQUATION BALANCER — Balance in one tap - Enter any unbalanced equation and get the answer immediately - Step-by-step breakdown of the balancing process CHEMISTRY DICTIONARY — 500+ terms explained - Look up any chemistry term with clear, simple definitions - From "electronegativity" to "Le Chatelier's principle" WHY STUDENTS LOVE IT - "I went from C to A in chemistry" — real results - Just tap an element — no complicated setup - AI explains concepts your teacher couldn't - Beautiful, Duolingo-inspired design that makes learning fun - Works offline for core periodic table data Perfect for AP Chemistry, GCSE, IB, MCAT prep, or anyone curious about how the world works at the atomic level. --- SUBSCRIPTION OPTIONS: - Weekly: $4.99/week - Yearly: $19.99/year (Best Value — Save 92%) Free users can explore basic element data. Upgrade to Pro for unlimited ChemAI conversations, AR viewer, full isotope database, and all tools. Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. Subscriptions may be managed by the user and auto-renewal may be turned off by going to Account Settings after purchase. Privacy Policy: https://www.aishen.mobi/chem-ai/privacy-policy Terms of Use: https://www.aishen.mobi/chem-ai/terms-of-service

How does a computer actually compute? Not metaphorically — physically. Learning Transistor answers that question in 14 interactive screens, starting from a single transistor and ending at a working one-bit computer you can step through with your finger. Every screen is a live circuit. Current flows as moving dots, voltage glows on the wires, and every input is yours to flip. Nothing is a video, and nothing is a quiz — you learn by turning things on and off and watching what the electrons do. THE JOURNEY - Meet Transistor Man — the classic mental model of how a transistor keeps its collector current exactly 100 times the base current, and what happens when it can't - The transistor switch: how 9.4 mA of base current lights a 100 mA lamp - The NOT gate: how a resistor and a transistor turn voltage into logic — and why "1" costs no current at all - NAND and NOR at the transistor level: series vs parallel, and why these two gates can build everything else - The symbol language: the D-shape, the pointed shape, and the little circle that flips every answer - Building with gates: AND from NANDs — abstraction you can tap to open and see the transistors still working inside - The SR latch: two crossed gates that remember one bit after your finger leaves the screen - XOR and the half adder: the moment logic becomes arithmetic, and 1 + 1 becomes 10 - The finale: memory + adder + feedback + a STEP clock — a one-bit computer, with every layer tappable all the way down to the silicon FREE TO START The first two screens — Transistor Man and the transistor switch — are free. A single purchase unlocks the rest of the journey. No subscriptions, no ads, no accounts, no data collection. Inspired by the classic figures of The Art of Electronics. Made for curious minds who want to know what is really happening inside the machine they are holding.