実験一覧 · Catalogue
All experiments
Every experiment and simulation in the lab, sorted by branch of physics. Search, filter and open any of them, free and with nothing to install.
Simple Pendulum: Lagrangian & Elliptic Period
Non-linear pendulum dynamics with photogate timer, phase portraits, and exact Legendre elliptic integral period expansion.
Double-Pendulum Chaos
Deterministic chaos in coupled pendula with Hamiltonian energy conservation monitoring (drift < 3×10⁻¹¹).
Ballistic Pendulum: Momentum & Energy
Measure projectile muzzle velocity by inelastic collision with a suspended catcher, cross-checked against free flight.
Torsion Pendulum & Moment of Inertia
Determine wire shear modulus and body moments of inertia while verifying Steiner's parallel-axis theorem.
Hooke's Law & Coupled Harmonic Oscillations
Explore coupled carts on an air track, normal in-phase and anti-phase modes, and periodic energy exchange beats.
Moment of Inertia of a Flywheel
Determine the rotational inertia of a heavy flywheel from falling mass potential energy and bearing friction coasting turns.
Kepler's Laws of Planetary Motion
Planetary and cometary orbits with equal-area sector sweeps, vis-viva velocity, and solar system harmonic law verification.
Maxwell Wave Lab (2D FDTD)
Electromagnetic wave propagation, double-slit diffraction, dielectric refraction, and wavepacket scattering.
Speed of Light: Rotating Mirror Method
Terrestrial speed of light measurement using a high-speed octagonal turbine mirror and folded long-distance optical baseline.
Beer–Lambert Law & Photometry
Serial dilution series, spectrophotometer blank calibration, and chemical concentration determination.
Electric Fields & Potentials
Interactive charge placement, vector field streamlines, and live voltmeter probe potential measurement.
Addition of Relativistic Velocity
Test Einstein velocity composition, observe the light cone boundary, and verify that no physical speed can exceed c.
Wavepackets & Quantum Tunnelling
Live quantum wavepacket evolution with barrier penetration, evanescent decay, and transmission probability T.
Photoelectric Effect & Planck's Constant
Spectral filters on a vacuum photocell, linear V₀ vs. ν regression, yielding Planck’s constant within 0.2%.
Rydberg Constant (Balmer Series)
Rotate spectrometer telescope, read dual vernier scales, and fit the 1/λ line to determine R_H within 0.05%.
Sodium Fine Structure (Michelson)
Count Haidinger circular interference fringes and track visibility beats to resolve the 0.597 nm D1/D2 doublet split.
Helium Spectrum: Para & Ortho
Interactive Grotrian transition diagram, Rydberg-Ritz quantum defects, and exchange interaction splitting.
Moseley's Law (X-Ray Fluorescence)
Excitation of 30 pure metal foils with 35 kV X-rays, Gaussian multichannel analyzer fitting, and Moseley plot.
Franck–Hertz Experiment
Accelerating voltage ramp with periodic current dips every 4.89 V in Hg, and glowing excitation layers in Ne.
HCl Rovibrational Infrared (FTIR)
Resolve the P- and R-branch lines of H³⁵Cl and H³⁷Cl, fit rotational constants B₀ and B₁, and extract bond distance r_e.
Raman Spectroscopy
Laser Raman scattering of CCl₄, benzene, and cyclohexane; verify Boltzmann temperature from peak ratios.
Iodine Absorption & Dissociation
Vibrational band head absorption of I₂ vapor, linear Birge–Sponer extrapolation to the convergence limit.
Electron Spin Resonance (DPPH)
RF modulation of DPPH in calibrated Helmholtz coils; trace resonance dips on oscilloscope to determine Landé g-factor.
Proton NMR Spectroscopy
Pulsed NMR with FID signal processing, phase correction, integration, and ethanol triplet-quartet multiplet analysis.
Geiger–Müller Counter: Plateau, Statistics, Absorption & Half-life
A full GM counting system in a lead castle: find the plateau, test Poisson statistics, the inverse square law, β/γ/α absorption, the Ba-137m half-life and the two-source dead time, all from an event-by-event detector model with a live oscilloscope.
Physics-Informed Neural Networks (PINN)
Deep neural networks solving partial differential equations live without spatial meshes using exact automatic differentiation.
Lab Data Plotter & Error Calculator
Upload raw laboratory CSV readings to perform weighted fits, propagate covariance uncertainties, and generate publication graphs.