Plasma is the most abundant state of matter in the visible universe, yet the least familiar in daily life. Stars, lightning, neon signs, and fusion reactors all share the same underlying physics: a gas so hot that electrons separate from their nuclei, creating a soup of charged particles that responds collectively to electromagnetic fields. This collective behavior gives plasma its richness — and its difficulty.
These simulations let you explore the fundamental phenomena of plasma physics. Confine a plasma with magnetic fields, watch Debye shielding neutralize a test charge, observe Langmuir oscillations, examine the cross-section of a tokamak, and calculate plasma frequencies for different densities. Each visualization reveals the elegant physics behind humanity's most ambitious energy project: controlled nuclear fusion.