Available for Windows
Makarov Physics Suite
200 interactive modules span mechanics, waves, optics, electromagnetism, quantum phenomena, fluids and thermodynamics. Work with physical objects, inspect detailed 3D apparatus and connect the motion to live measurements.
200 modules · Page 7 / 10
Physics
Molecules and light
Why CO₂ absorbs infrared and N₂ does not: molecules as masses and springs, true normal modes, and resonance when the photon matches the mode.
Physics
Laser and discharge
Pump a three-level medium past its threshold and watch stimulated emission take over; then race electrons down a discharge tube into the Franck-Hertz dips.
Physics
Photoelectric effect
Light knocks electrons out of a metal: stopping voltage, the red limit, and measuring Planck constant from the slope - intensity cannot do what frequency does.
Physics / Astronomy / Earth
Blackbody radiation
Planck's curve live: slide the temperature, watch Wien's peak march and the Stefan-Boltzmann area grow, and see the body's true color.
Physics
Davisson-Germer
Electrons diffract off a nickel crystal: a peak at 50 degrees for 54 volts, from de Broglie's wavelength and one lattice constant. The measurement that made matter waves real.
Physics
Spin and measurement
Stern-Gerlach for real: atoms split in a field gradient, sequential analyzers obey the cos²(θ/2) law, and measurement collapses the state on the Bloch sphere.
Physics
Franck-Hertz experiment
Electrons through mercury vapour: the collector current dips every 4.9 volts, because an atom takes that energy or none at all.
Physics
Radioactivity
Decay as statistics: half-life from thousands of glowing nuclei, decay chains on the nuclide chart, a chain reaction going critical, and dating by isotopes.
Physics
Charge-to-mass ratio
Accelerate electrons, bend them in Helmholtz coils, measure the circle: e/m = 2U/(B^2 r^2), with the field integrated from Biot-Savart.
Physics
Rutherford scattering
The Geiger–Marsden apparatus in three dimensions: a radium source, the gold foil, a spherical screen that flashes where each alpha lands, a microscope counting one angle - and the rare bounce back that gave the atom its nucleus.
Physics
Nuclear power plant
Follow energy from a controlled chain reaction through three water circuits to the electrical grid. Explore xenon, shutdown and cooling failures.
Physics
Compton scattering
A photon hits a free electron and comes off with less energy and a longer wavelength. The shift depends on the angle and not on the energy.
Physics
Cyclotron
One fixed radio frequency, a spiral that grows for free, and a ceiling put there by relativity rather than by engineering.
Physics
Cloud chamber
A line of droplets, and every answer comes out of its shape: how long, how thick, how straight, and which way it bends.
Physics
Mass spectrometer
A ruler that reads mass off a position: the radius carries the square root of the mass, so every mass difference arrives halved.
Physics
Alpha decay
Twenty-four decades of half-life out of a factor of two in energy, because the tunnelling probability sits in an exponent.
Physics
Cherenkov radiation
An optical sonic boom: a cone of blue light trailing a particle that outran the light in the medium.
Physics
Muon lifetime
Time dilation as a count rather than a claim: a factor of a billion between the muons that should reach sea level and the ones that do.
Some modules belong to more than one Suite. Shared experiments have one description here.