About 2,990,000 results
Open links in new tab
  1. Magnet - Wikipedia

    A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other …

  2. Magnetism | Definition, Examples, Physics, & Facts | Britannica

    Nov 9, 2025 · Magnetism, phenomenon associated with magnetic fields, which arise from the motion of electric charges. It can be an electric current in a conductor or charged particles …

  3. MAGNETIC Definition & Meaning - Merriam-Webster

    The meaning of MAGNETIC is possessing an extraordinary power or ability to attract. How to use magnetic in a sentence.

  4. How Do Magnets Work? The Physics Behind Magnetism

    May 23, 2025 · At its core, magnetism is a force—a special kind of interaction between objects that can cause attraction or repulsion without physical contact. Magnets produce magnetic …

  5. NASA Is Tracking a Vast Anomaly Growing in Earth's Magnetic Field

    Nov 18, 2025 · For years, NASA has monitored a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies, stretching out between South America …

  6. Magnetism - National Geographic Society

    Oct 19, 2023 · The magnetic needle of a compass lines up with Earth’s magnetic poles. The north end of a magnet points toward the North Magnetic Pole, which holds a south magnetic charge.

  7. Physics of light and magnetism rewritten after almost two …

    Nov 19, 2025 · An experiment 180 years ago first demonstrated a connection between light and electromagnetism – but the link is deeper than we thought

  8. Magnetism - Wikipedia

    Magnetism is the class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other. Because both electric currents and magnetic moments of …

  9. How Do Magnets Work? | Physics, Attract, & Repel | Britannica

    Magnets work because of magnetic fields which arise from the motion of electric charges. This field exerts forces on other magnetic objects and moving charges, causing attraction or repulsion.

  10. Magnetic moment - Wikipedia

    Magnetic moment ... In electromagnetism, the magnetic moment or magnetic dipole moment is a vector quantity which characterizes the strength and orientation of a magnet or other object or …