Blackbody Radiation & Wien's Law
Explore the Planck radiation spectrum with adjustable temperature. See Wien's displacement law locate the peak wavelength and compare star temperatures from red dwarf to blue giant.
de Broglie Wavelength Calculator
Calculate matter wave wavelength λ = h/(mv). Presets for electron, proton, baseball, and human. Shows scale comparison and wave visualization.
Nuclear Fusion Simulator
Animated D-D, D-T, and pp-chain fusion reactions. Shows nucleons, mass defect, energy release (MeV), and required temperature.
Radioactive Decay Chain (U-238 → Pb-206)
Complete U-238 decay series to stable Pb-206 with 14 steps. Shows α/β⁻ decay type, mass/atomic number changes, and half-lives.
Compton Scattering Visualizer
Photon-electron collision with Δλ = λc(1−cosθ). Adjust angle and wavelength to see scattered photon, recoil electron, and energy transfer.