Learning & Science
Learn by exploring.
Explore physics, space, circuits, chemistry, robotics and mathematics in interactive learning workspaces. Use models to build intuition, then review assumptions and limits.
Explore, practice, check
Choose a learning tool by what you want to understand
Use an interactive model to explore a concept, a calculator to check a result, or a practice workspace to build a skill. Each type of tool answers a different learning question.
Explore science through models
Investigate physical systems or the solar system in a visual simulation; compare what changes when you adjust inputs.
Explore Physics Simulation LabPractice mathematics and statistics
Calculate values, graph functions or inspect probability scenarios. Check the units, formulas and assumptions behind each result.
Open Statistics & Probability LabBuild technical skills
Practice typing or explore circuits, coding concepts, robotics and other interactive systems.
Open Typing & Skill PracticeYou can also explore Interactive Chemistry Studio, Astronomy & Space Simulator and Machine Learning Playground. Simulations illustrate models; they are not laboratory measurements, engineering certification or substitutes for expert instruction.
Helpful questions
Are the science simulators accurate enough for engineering decisions?
These educational tools help explain concepts. Verify their models, assumptions and output independently before using them for safety-critical or professional design.
Which is better for study: a calculator or a simulation?
Use a calculator for a specific numerical result and a simulation to observe how variables interact. Both can complement worked examples and practice.
Start here
Begin with a focused calculation or unit conversion; educational labs remain in the full task groups.
Scientific Calculator
Calculate trigonometry, logarithms, powers, roots and factorials with DEG/RAD/GRAD modes, memory and session history in a browser scientific calculator.
Open tool →Unit Converter
Convert measurement units across length, mass, temperature, area, volume, speed, data and fuel economy with precision settings and a full conversion table.
Open tool →Fraction Calculator
Calculate fractions and mixed numbers, simplify answers and convert decimals. See common-denominator steps and explicit errors for invalid denominators.
Open tool →Curiosity, made interactive.
Learn by experimenting with models, simulations and practical tools.
Physics Simulation Lab
Explore physical models with adjustable parameters.
Explore toolAstronomy & Space Simulator
Explore celestial motion and simplified models.
Explore toolInteractive Chemistry Studio
Work through chemistry concepts interactively.
Explore toolElectronics Circuit Simulator
Explore components and circuit behavior.
Explore tool3D Mathematics Visualizer
Understand mathematical structures visually.
Explore toolMachine Learning Playground
Explore learning algorithms and model behavior.
Explore toolRobotics Simulator
Study simplified robotics and control behavior.
Explore toolScientific Graphing Studio
Visualize equations and mathematical relationships.
Explore toolWhat would you like to do?
Pick the task, then open a useful workspace directly. Every original tool stays listed further down.
Explore science
Physics, chemistry and space
Build systems
Circuits, electronics and robots
Practice math
Equations and calculations
Learn computers
Networks, AI and skills
44 tools grouped by task.
Science labs 11 tools
Explore idealized physical models, illustrative molecular structures, chemistry, space and geographic data.
Physics Simulation Lab
Explore six educational physics models, compare parameter baselines and log predicted results. Export diagrams, modeled CSV data or an editable local project.
Open tool → Learning & ScienceElectronics Circuit Simulator
Draw supported educational DC circuits with resistors, batteries, switches and simplified LEDs. Inspect modeled voltages and currents, then export schematics, CSV or JSON.
Open tool → Learning & ScienceMolecular Structure Builder
Sketch supported atoms and bonds, explore illustrative molecular views and import or export limited structure formats. Keep editable JSON and labeled diagram or coordinate exports.
Open tool → Learning & ScienceFluid Simulation Studio
Explore a local 2D particle-fluid approximation with presets, obstacles and visualization modes. Save scene JSON, export PNG snapshots or record a short browser-supported clip.
Open tool → Learning & ScienceAstronomy & Space Simulator
Explore approximate planet orbits, compare planetary scale and view idealized Moon phases. Inspect modeled positions and export planet CSV or supported canvas snapshots locally.
Open tool → Learning & ScienceInteractive Chemistry Studio
Explore 118 elements, balance supported neutral equations and study schematic molecules or curated reactions. Practice element recall and save a local learning-progress backup.
Open tool → Learning & ScienceGIS & Geographic Data Studio
Import WGS84 GeoJSON, draw geographic features and manage local map layers. Inspect approximate measurements and export geographic data, map images or editable project JSON.
Open tool → Learning & ScienceHuman Anatomy Explorer
Study an educational schematic of body systems with selectable structures, guided tours, quizzes and notes; export illustrated views, a catalog or progress backup.
Open tool → Learning & ScienceClimate Visualization Studio
Explore local climate observation tables with date and unit mapping, coverage diagnostics, seasonal charts and observed-period anomalies.
Open tool → Learning & ScienceEcosystem Simulator
Explore a simplified two-population predator-prey model, compare hypothetical interventions and parameter sensitivity, and export trajectories or project snapshots.
Open tool → Learning & ScienceSignal Generator & Oscilloscope
Design synthetic waveform mixtures, inspect time/FFT/XY displays or an optional live microphone view, and export generated signals or graph images.
Open tool →Skills and guided practice 10 tools
Practice geography, keyboard skills, simulated commands, music theory or English speaking, turn slides into study notes, or compose a small notated score with synthetic playback. Feedback and exported notation require review in their intended use.
Geography Learning Studio
Explore a simplified world atlas and practice supported country, capital, flag and state-capital questions. Review mistakes and keep local progress with JSON or CSV exports.
Open tool → Learning & ScienceTyping & Skill Practice Studio
Practice timed typing, word drills, guided lessons and custom text. Review local speed, accuracy and mistake history, set daily goals and back up practice data.
Open tool → Learning & ScienceLinux Terminal Simulator
Practice supported Linux-style commands and guided lessons in a simulated browser filesystem. Inspect command results and save or restore a local practice-session JSON backup.
Open tool → Learning & ScienceMusic Theory Studio
Explore an interactive piano, chord and scale matches, and editable progressions. Audition browser-synthesized notes and export supported MIDI or project JSON.
Open tool → Learning & ScienceAI Pronunciation Coach
Practice English phrases with reference speech, recordings and reviewed transcripts. Compare recognized words, pace and pauses using manual, browser-dictation or optional local Whisper modes.
Open tool → Learning & ScienceAI Presentation to Notes
Extract supported PPTX/PDF/text content into editable source-referenced notes and flashcards. Review coverage, optionally request a local summary draft and export notes, evidence or projects.
Open tool → Learning & ScienceSheet Music Composer
Compose notes, rests and chords across instrument parts with transposition and measure copying; audition synthetic playback and export MIDI, MusicXML, SVG, WAV or project JSON.
Open tool → Learning & SciencePhonetic Alphabet Converter
Convert text to spelling codewords or bundled US English broad IPA, review unknown words and export readable or private structured round-trip output.
Open tool → Learning & ScienceText-to-Braille Converter
Study a constrained uncontracted English Braille subset, inspect six-dot cells and create read, trace or practice worksheets.
Open tool → Learning & ScienceUnicode Inspector
Inspect Unicode code points, grapheme boundaries and directional controls, compare normalization forms and export text diagnostics.
Open tool →Math and measurement helpers 12 tools
Work with expressions, sampled 3D plots, distributions and statistical questions, or author supported equations. Keep units and model assumptions explicit.
Scientific Calculator
Calculate trigonometry, logarithms, powers, roots and factorials with DEG/RAD/GRAD modes, memory and session history in a browser scientific calculator.
Open tool → Learning & ScienceFraction Calculator
Calculate fractions and mixed numbers, simplify answers and convert decimals. See common-denominator steps and explicit errors for invalid denominators.
Open tool → Learning & ScienceUnit Converter
Convert measurement units across length, mass, temperature, area, volume, speed, data and fuel economy with precision settings and a full conversion table.
Open tool → Learning & Science3D Mathematics Visualizer
Plot explicit and parametric surfaces or 3D curves using a restricted math parser. Probe numerical coordinates and export sampled OBJ, CSV, PNG or editable JSON projects.
Open tool → Learning & ScienceStatistics & Probability Lab
Explore probability distributions, seeded sampling, simple regression and supported t-tests locally. Inspect charts and assumptions, then export project JSON, data, reports or a handoff ZIP.
Open tool → Learning & ScienceMathematical Equation Editor
Author supported LaTeX math with guided structures and a self-hosted MathJax preview. Export SVG/PNG, TeX, editable projects or equation-library backups locally.
Open tool → Learning & ScienceAI Math Equation Recognizer
Select equation image/drawing regions for optional local TexTeller recognition, then correct LaTeX with a bundled MathJax preview. Export MathML, SVG, PNG, TeX or editable projects.
Open tool → Learning & ScienceScientific Graphing Studio
Plot supported equations, parametric curves and measurement data; fit linear/quadratic regressions and export graphs, sampled data or editable projects.
Open tool → Learning & ScienceStructural Analysis Visualizer
Model educational 2D pin-jointed trusses, inspect linear force/displacement/reaction results and hypothetical load scaling, and export reports or projects.
Open tool → Learning & ScienceMachine Learning Playground
Explore bounded two-feature clustering, classification and regression experiments with training-only normalization, held-out metrics and cross-validation.
Open tool → Learning & ScienceVector & Matrix Calculator
Explore bounded matrix operations, linear systems and vector geometry, inspect numerical plots and export calculated results or an unfinished workspace.
Open tool → Learning & ScienceProbability Distribution Explorer
Explore eleven probability families, bounded probability/quantile queries and seeded sample histograms, and export charts or numerical tables.
Open tool →Logic, robotics and machine learning 7 tools
Build ideal digital circuits, interpret a supported Arduino-style sketch, explore planar robot kinematics or train a small 2D binary classifier. These educational models do not control physical hardware or provide production machine learning.
Arduino & Microcontroller Simulator
Wire virtual Uno or Nano components, run a supported Arduino-style sketch and inspect logical pin signals. Export project backups, sketch text, circuit SVG or trace CSV locally.
Open tool → Learning & ScienceDigital Logic Simulator
Build ideal logic circuits with gates, switches, flip-flops and registers. Inspect 0/1/X states, waveforms and bounded truth tables, then save JSON or export diagrams and CSV.
Open tool → Learning & ScienceRobotics Simulator
Explore two- to four-joint planar robot arms, inverse kinematics and keyframe paths. Inspect sampled warnings and export editable JSON, trajectory CSV or SVG/PNG snapshots locally.
Open tool → Learning & ScienceNeural Network Playground
Train a bounded browser-local 2D binary classifier and explore decision boundaries, weights and learning curves. Adjust thresholds and export datasets, models, metrics or a handoff ZIP.
Open tool → Learning & ScienceMechanical Assembly Designer
Arrange illustrative 3D parts and imported meshes, define joints and exploded views, review advisory overlaps and export geometry or project backups.
Open tool → Learning & ScienceComputer Network Simulator
Build an educational topology, inspect simplified IPv4 forwarding and packet paths, and export reachability, routing and topology reports.
Open tool → Learning & ScienceOperating System Simulator
Explore textbook CPU scheduling, partition allocation, page replacement and resource-safety models; compare policies and export teaching diagrams or projects.
Open tool →Systems and operations 4 tools
Explore fictional airport and road traffic, single-product supply chains and simplified warehouse pick routes. These educational models do not establish real operating capacity, safety, engineering compliance or optimal business decisions.
Supply Chain Simulator
Edit a simplified distribution network and single-product demand assumptions, compare deterministic scenarios and export daily, route and cost reports.
Open tool → Learning & ScienceTraffic Flow Simulator
Build a simplified road network, adjust signals and demand, compare seeded scenario runs and export road metrics or network illustrations.
Open tool → Learning & ScienceWarehouse Layout Simulator
Design a warehouse grid, racks and docks, inspect simplified pick routes and traversal heatmaps, and compare sampled-demand scenarios.
Open tool → Learning & ScienceAirport Operations Simulator
Explore fictional airport arrivals, departures, gates and runway queues; step the simplified simulation, review operations and export a paused snapshot or reports.
Open tool →Use the results with their assumptions
Science results are model predictions or illustrative structures, not measurements or certified engineering results. Practice scores are local feedback. Review each tool's limits and save a backup if you want to keep your work.
Keep project or progress backups when a tool offers them. Browser storage and download behavior vary by tool and browser.