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  1. Plasma | Physics, State of Matter, & Facts | Britannica

    Nov 22, 2025 · Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a …

  2. Plasma physics - Britannica

    In postwar papers, Bohm laid the foundations of modern plasma theory. Bohm’s lectures at Princeton developed into an influential textbook, Quantum Theory (1951), that contained a …

  3. Plasma - Oscillations, Parameters, Interactions | Britannica

    Oct 17, 2025 · This is the great practical goal of plasma physics—to produce nuclear fusion on the Earth. Confinement schemes devised by scientists use magnetic fields or the inertia of an …

  4. Plasma - Fusion, Lighting, Astronomy | Britannica

    Nov 22, 2025 · A practical application of plasma involves the glow discharge that occurs between two electrodes at pressures of one-thousandth of an atmosphere or thereabouts.

  5. Plasma - Waves, Particles, Interactions | Britannica

    Nov 22, 2025 · Plasma - Waves, Particles, Interactions: The waves most familiar to people are the buoyancy waves that propagate on the surfaces of lakes and oceans and break onto the …

  6. Nuclear Energy, Plasma Physics, Fusion Power - Britannica

    Nov 25, 2025 · A next major step in the development of fusion power is the construction of a facility to study the physics of a burning, ignited plasma (with Q being infinite). The presence of …

  7. plasma and plasma physics - Students | Britannica Kids

    Plasma is sometimes called the fourth state of matter because plasmas possess remarkable properties not found in ordinary solids, liquids, and gases. Because the free electrons are …

  8. Magnetic Confinement, Plasma, Fusion - Britannica

    Nov 25, 2025 · Solution of the anomalous transport problem involves research into fundamental topics in plasma physics, such as plasma turbulence. Many different types of magnetic …

  9. Plasma - Natural, State, Matter | Britannica

    Nov 22, 2025 · Plasma - Natural, State, Matter: It has been suggested that the universe originated as a violent explosion about 13.8 billion years ago and initially consisted of a fireball of …

  10. Magnetohydrodynamics (MHD) | Britannica

    plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become …