Online Science Laboratory & 3D Interactive Simulations | hoan.uk

Experiment Directory (27)

• Young's Double-Slit Interference

  Definitive proof of the wave nature of light

  physics / optics  •  Thomas Young (1801)

• Galileo's Gravitational Free Fall

  All bodies accelerate identically under gravity in vacuum

  physics / gravity  •  Galileo Galilei (1589)

• Foucault Pendulum (Earth's Rotation)

  Visual proof of Earth's rotation via Coriolis precession

  physics / mechanics  •  Léon Foucault (1851)

• Newton's Prism Light Dispersion

  Splitting white sunlight into the continuous color spectrum

  physics / optics  •  Sir Isaac Newton (1666)

• Rutherford's Alpha Particle Scattering

  Discovery of the dense atomic nucleus

  physics / atomic  •  Ernest Rutherford (1911)

• Driven Oscillations & Mechanical Resonance

  Resonant amplitude peaking when driving frequency matches natural frequency

  physics / mechanics  •  Robert Hooke & Lord Rayleigh (1678)

• Lorenz Attractor & The Butterfly Effect

  Nonlinear dynamical system and deterministic chaos theory

  math / chaos  •  Edward Lorenz (1963)

• Fourier Series & Epicycles Wave Synthesizer

  Decomposition of periodic functions into harmonic sinusoidal oscillations

  math / calculus  •  Jean-Baptiste Joseph Fourier (1822)

• Pythagorean Theorem & Geometric Dissection

  Hypotenuse square area conservation & Generalized Law of Cosines

  math / geometry  •  Pythagoras & Henry Perigal (-500)

• Brachistochrone & Tautochrone Cycloid Race

  Calculus of variations: Fastest descent trajectory is a cycloid, not a straight line

  math / calculus  •  Johann Bernoulli (1696)

• Mandelbrot & Julia Fractal Complex Dynamics

  Infinite fractal complexity emerging from iterated quadratic complex mapping

  math / fractal  •  Benoît Mandelbrot & Gaston Julia (1980)

• DNA Molecular Double Helix

  Spatial molecular architecture and complementary base pairing

  biology / genetics  •  James Watson & Francis Crick (Rosalind Franklin) (1953)

• Coriolis Effect & Atmospheric Circulation

  Deflection of winds and cyclonic vorticity across hemispheres

  earth-sciences / atmosphere  •  Gaspard-Gustave de Coriolis (1835)

• Lotka-Volterra Predator-Prey Dynamics

  Self-regulating cyclic oscillations in predator-prey ecology

  biology / ecology  •  Alfred Lotka & Vito Volterra (1925)

• 4D Space Simulation & Quantum Projections

  Explore 4D spatial geometry, slice projections, and decipher quantum mechanics via extra dimensions

  physics / quantum-4d  •  Carl Sagan, Theodor Kaluza & Oskar Klein (1921)

• Damped Harmonic Oscillator

  Solution of second-order linear differential equation with viscous damping

  math / calculus  •  Robert Hooke & Isaac Newton (1687)

• Lorenz Strange Attractor & Butterfly Effect

  3-dimensional nonlinear autonomous differential system generating deterministic chaos

  math / dynamical-systems  •  Edward Norton Lorenz (1963)

• Van der Pol Relaxation Oscillator

  Nonlinear self-sustaining oscillator generating an isolated limit cycle

  math / dynamical-systems  •  Balthasar van der Pol (1927)

• Nonlinear Large-Angle Simple Pendulum

  Exact pendulum dynamics across all initial angles without small-angle approximation

  physics / mechanics  •  Galileo Galilei & Christiaan Huygens (1602)

• Series RLC Electromagnetic Oscillator

  Energy exchange between inductor magnetic field and capacitor electric field

  physics / electromagnetism  •  William Thomson (Lord Kelvin) (1853)

• Kermack-McKendrick SIR Epidemic Model

  Compartmental transmission dynamics: Susceptible (S), Infectious (I), Recovered (R)

  biology / epidemiology  •  William Ogilvy Kermack & Anderson Gray McKendrick (1927)

• Brusselator Autocatalytic Chemical Oscillator

  Non-equilibrium autocatalytic chemical reaction yielding limit cycle concentration oscillations

  chemistry / reaction-kinetics  •  Ilya Prigogine & René Lefever (1968)

• Keplerian Two-Body Gravitational Orbit

  Planetary orbital motion around a central star under Newton's law of universal gravitation

  astronomy / celestial-mechanics  •  Johannes Kepler & Isaac Newton (1609)

• Rayleigh-Bénard Atmospheric Convection

  Hydrodynamic thermal convection: self-organization of Bénard rolls and meteorological chaos transition

  earth-sciences / meteorology  •  Henri Bénard & Lord Rayleigh (Edward Lorenz 1963) (1900)

• Closed-Loop Feedback PID Controller

  Proportional-integral-derivative automatic feedback control with dynamic plant tracking

  engineering / control-systems  •  Nicolas Minorsky (1922)

• Lotka-Volterra Predator-Prey Population Dynamics

  Nonlinear differential model of ecological interaction generating periodic population cycles

  biology / population-ecology  •  Alfred J. Lotka & Vito Volterra (1925)

• Turing Reaction-Diffusion Morphogenesis

  Alan Turing's computational reaction-diffusion model for biological pattern formation (1952)

  computer-science / automata-complexity  •  Alan Turing (1952)